ETC MAX16031

19-0870; Rev 3; 9/10
ৰ‫ۇ‬
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ਈၫ௣ǈ࠭ऎဣሚৎ঱ࡼഉ૚ቶă
♦ ৙࢟࢟ኹपᆍǖ3/96Wᒗ25W
♦ ऻပጵ৺ᑇ଎ࡀ໭፿᎖ࡀ߼৺ᑇᓨზǈ‫ܣ‬᎖Ⴒઁࡼᇹ
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♦ KUBH୻ా
♦ 8nn! y! 8nnĂ59፛୭URGOॖᓤ
``````````````````````````````` ࢾ৪ቧᇦ
PART
TEMP RANGE
PIN-PACKAGE
MAX16031ETM+
-40°C to +85°C
48 TQFN-EP*
MAX16032ETM+
-40°C to +85°C
48 TQFN-EP*
,‫ܭ‬ာᇄ໺)Qc*0९੝SpIT‫ܪ‬ᓰࡼॖᓤă
*FQ! >! ൡ੆๤ă
N.C. (DXP2)
N.C. (DXN2)
N.C. (CS+)
N.C. (CS-)
N.C.
N.C.
VCC
VCC
``````````````````````````````` ፛୭๼ᒙ
DXN1
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ऄᅪࡼ৺ᑇଶ‫ހ‬ၒ߲Ă၄ࣅআᆡၒྜྷ૞ࣗ0ቖ൝૷ă௥ᎌ
ࣖೂၒ߲ࡼ࢟ഗଶ‫ހ‬हࡍ໭Ᏼਭഗᓨზሆభጲ౐Ⴅਈࣥă
NBY271420NBY27143‫ݧ‬፿8nn y 8nn URGOॖᓤǈ৔ᔫ
Ᏼ.51°Dᒗ,96°Dᆨࣞपᆍă
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DXP1
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♦ ௥ᎌਭഗၒ߲ᒎာࡼ঱‫࢟ܟ‬ഗଶ‫ހ‬हࡍ໭)NBY27142*!
N.C.
‫ހ‬೟ᒋᎧ፿ઓ࿸ᒙࡼ࿟ሢĂሆሢ஠ቲ‫୷܈‬ă࣪᎖࢟ኹ‫ހ‬
೟ǈᎌೝৈ་ኹඡሢਜ਼ೝৈਭኹඡሢă࣪᎖࢟ഗਜ਼ᆨࣞ
‫ހ‬೟ǈᎌೝᔝ࿟ሢăጙࡡ‫ހ‬೟உਫި߲ඡሢपᆍǈ୓્
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ࡼ৺ᑇᒎာၒ߲ǈᆐᆨࣞĂ࢟ഗ૞࢟ኹ৺ᑇᄋ৙औ଀ପ
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3ৈ་ኹඡሢਜ਼3ৈਭኹඡሢ
3ৈਭེඡሢ
3ৈਭഗඡሢ
IN1
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വ࢟ኹਜ਼3ৈᆨ࢛ࣞ)2ৈด‫ݝ‬ᆨࣞ02ৈᏐ࣡ᆨࣞऔ૵਌*ă
Ⴥᎌପ‫ݬހ‬೟࣒আ፿ၒྜྷࡵBEDǈ݀ቖྜྷ৉ᔈ࣪።ࡼ଎
ࡀ໭ǈభᄰਭTNCvtUN ਜ਼KUBH୻ాࣗནă
♦ ପ‫ࡉࣶހ‬9വ࢟ኹ)࡝࣡ၒྜྷ૞ᆗ‫ތ‬ॊၒྜྷ*ǈறࣞᆐ2&
48
47
46
45
44
43
42
41
40
39
38
37
``````````````````````````````````` ።፿
ॲᇗ໭
৔ᔫᐶ
ࡀ߼ᇹᄻ
ᆀ൥
࢟ቧ
IN2 1
36 ABP
+
IN3 2
35 GND
IN4 3
34 DBP
N.C. 4
33 TDO
N.C. 5
32 N.C.
N.C. 6
31 N.C.
MAX16031
MAX16032
N.C. 7
30 N.C.
GND 8
29 TDI
IN5 9
28 TCK
IN6 10
27 TMS
N.C. (IN7) 11
26 RESET
EP
13
14
15
16
17
18
19
20
21
22
23
24
GND
GPIO2
RBP
SDA
SCL
A0
A1
ALERT
OVERT
N.C. (OVERC)
FAULT2
25 FAULT1
GPIO1
N.C. (IN8) 12
( ) MAX16031 ONLY
TNCvtဵJoufm! Dpsq/ࡼ࿜‫ܪ‬ă
TQFN
________________________________________________________________ Maxim Integrated Products
1
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``````````````````````````````````` গၤ
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`````````````````````````````````````````````````````````````````````````` ኡቯᒎฉ
VOLTAGE MONITORS
PART
TEMPERATURE SENSORS
CURRENTSENSE AMPS
FAULT
GPIOs
OUTPUTS
SINGLE ENDED
DIFFERENTIAL
INT
EXT
MAX16031ETM+
8
4
1
2
1
4
2
MAX16032ETM+
6
3
1
1
—
4
2
`````````````````````````````````````````````````````````````````````` ࢜ቯ።፿࢟വ
5V
5V DC-DC
EN
1.5V
1.5V
DC-DC
3.3V
3.3V DC-DC
EN
1.2V
1.2V
DC-DC
12V BUS
2.5V
2.5V DC-DC
EN
0.9V
0.9V
LINEAR
1.8V
1.8V DC-DC
EN
3.3V AUX
CS+
CS-
IN1
IN2
IN3
IN4
IN5
VCC
1μF
IN6
IN7
IN8
ALERT
INT
SCL
SCL
SDA
SDA
μC
GPIO1
RESET
RESET
SYSTEM RESET
DXP1
MAX16031
FAULT1
FAULT2
DXN1
DXP2
OVERT
TO FAN CONTROL
OVERC
DXN2
GPIO2
ABP
1μF
DBP
1μF
RBP
GND
A0
A1
TMS
TCK
TDI
TDO
2.2μF
TMS
SYSTEM JTAG
HEADER
TCK
TDI
MANUAL
RESET
SWITCH
TO OTHER
JTAG DEVICES
TDO
2
_______________________________________________________________________________________
WARNING INDICATORS
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Input/Output Current
(all except DXN1, DXN2, SDA, and ALERT) ..................20mA
Continuous Power Dissipation (TA = +70°C)
48-Pin, 7mm x 7mm TQFN
(derate 27.8mW/°C above +70°C) ........................2222.2mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+250°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = 2.9V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
Operating Voltage Range
Undervoltage Lockout
Undervoltage Lockout Hysteresis
Supply Current
SYMBOL
CONDITIONS
VCC
VUVLO
MIN
Minimum voltage at VCC
to access the digital interfaces
VUVLOHYS
ICC
TYP
2.90
MAX
UNITS
14.00
V
2.8
V
100
Static (EEPROM not accessed)
3
mV
5
mA
10
Bits
0.9
%FSR
ADC DC ACCURACY
Resolution
Total Unadjusted Error
TA = -40°C to +85°C
Integral Nonlinearity
1
LSB
Differential Nonlinearity
1
LSB
ADC Total Monitoring Cycle Time
tCYCLE
ADC IN_ Voltage Ranges
Reference Voltage
VRBP
Eight supply inputs, three temperatures,
and current sense
80
Register map bit set to 00
(LSB = 5.46mV)
5.6
Register map bit set to 01
(LSB = 2.73mV)
2.8
Register map bit set to 10
(LSB = 1.36mV)
1.4
1.386
1.4
100
μs
V
1.414
V
5.6
V
80
kΩ
IN_ ANALOG INPUT
Absolute Input Voltage Range
(Referenced to GND)
0
Input Impedance
30
50
_______________________________________________________________________________________
3
NBY271420NBY27143
ABSOLUTE MAXIMUM RATINGS
VCC to GND ............................................................-0.3V to +15V
IN_, FAULT_, SCL, SDA, OVERT to GND.................-0.3V to +6V
A0, A1, TCK, TMS, TDI to GND ................................-0.3V to +6V
OVERC, RESET, GPIO_, ALERT to GND..................-0.3V to +6V
RBP, ABP, DBP to GND ...-0.3V to lower of (6V and VCC + 0.3V)
TDO, DXP1, DXP2 to GND..........................-0.3V to VDBP + 0.3V
CS+, CS- to GND ...................................................-0.3V to +30V
(CS+ - CS-) ............................................................................±5V
DXN1, DXN2 to GND.............................................-0.3V to +0.8V
SDA, ALERT Current ...........................................-1mA to +50mA
DXN1, DXN2 Current ............................................................1mA
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ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.9V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Percent of programmed
threshold
Input Hysteresis
MIN
TYP
r5Ch[5] = 0
0.78
r5Ch[5] = 1
1.17
MAX
UNITS
%
RESET OUTPUT
Reset Timeout Period
tRP
r20h[5:3] = 000; from MR going high
22.5
25
27.5
r20h[5:3] = 001
2.25
2.5
2.75
r20h[5:3] = 010
9
10
11
r20h[5:3] = 011
36
40
44
r20h[5:3] = 100
144
160
176
r20h[5:3] = 101
576
640
704
r20h[5:3] = 110
1152
1280
1408
r20h[5:3] = 111
2304
2560
2816
μs
ms
TEMPERATURE MEASUREMENTS
Internal Sensor Measurement
Error
(Note 2)
±3
°C
External Remote Diode
Temperature Measurement Error
(Note 2)
±5
°C
0.5
°C
Temperature Measurement
Resolution
Temperature Measurement Noise
Internal sensor
0.1
°C
84
μA
External Diode Drive Low
6
μA
Diode Drive Current Ratio
14
DXN_ Impedance to GND
1.8
kΩ
0.1
°C/V
External Diode Drive High
Power-Supply Rejection
PSR
Internal sensor, DC condition
CURRENT SENSE
CS+ Input Voltage Range
Input Bias Current
VCS+
3
ICS+
VCS+ = VCS-
14
25
ICS-
VCS- = VCS+
3
8
25
28.5
Primary Current-Sense
Differential Thresholds
VCSTH
VCS+ - VCS-
Primary Current-Sense Threshold
CSHYS
Percent of VCSTH
A = 48
21.5
A = 24
45
50
55
A = 12
92
100
108
A=6
190
200
210
0.5
r5Ch[1:0] = 00
Secondary Overcurrent
Threshold Timeout
4
28
μA
mV
%
50
μs
r5Ch[1:0] = 01
3.6
4
4.4
r5Ch[1:0] = 10
14.4
16
17.6
r5Ch[1:0] = 11
57.6
64
70.4
_______________________________________________________________________________________
V
ms
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NBY271420NBY27143
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.9V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Current-Sense Analog Input
Range
CONDITIONS
VCS+ - VCS-
A=6
MIN
TYP
232
A = 12
116
A = 24
58
A = 48
ADC Current-Sense
Measurement Accuracy
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
CMRRCS
29
-4
±0.2
+4
VSENSE = 50mV (A = 6, 12 only)
-10
±1.2
+10
VSENSE = 25mV
±2
VSENSE = 10mV
±10
-3
VCS+ > 4V
IOVERCLKG
OVERC Output Low Voltage
VOLOVERC
OVERC Propagation Delay
tOVERC
+3
80
PSRRCS
OVERC Output Leakage Current
UNITS
mV
VSENSE = 150mV (A = 6 only)
VSENSE = 20mV to 100mV,
VCS+ = 12V, A = 6
Gain Accuracy
MAX
VSENSE - VCSTH > 10% x VCSTH
%
dB
80
IOUT = 3mA
%
dB
1
μA
0.4
V
5
μs
0.8
V
+1
μA
0.4
V
SMBus INTERFACE (SCL, SDA)
Logic-Input Low Voltage
VIL
Logic-Input High Voltage
VIH
Input Leakage Current
Output Low Voltage
VOL
Input Capacitance
CIN
ALERT,
Input voltage falling
Input voltage rising
2.0
GND or 5.5V (VCC = 5.5V) VSCL, VSDA
-1
V
ISINK = 3mA
5
pF
AND GPIO_ OUTPUTS
ALERT,
, and GPIO_
Output Low Voltage
ISINK = 3mA
ALERT,
, and GPIO_
Leakage Current
V ALERT, V
, VGPIO_ = 5.5V or GND
-1
0.4
V
+1
μA
0.8
V
GPIO_ (INPUT)
Logic-Low Voltage
GPIO_ voltage falling
Logic-High Voltage
GPIO_ voltage rising
2.0
V
SMBus ADDRESS (A0 and A1)
Address Logic-Low
0.4
Address Logic-High
1.4
V
V
High-Impedance Leakage
Current
Maximum current to achieve highimpedance logic level
-1
+1
μA
Input Leakage Current
0 to 3V, VCC = 3V
-12
+12
μA
_______________________________________________________________________________________
5
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ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.9V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
400
kHz
SMBus TIMING (see Figure 1)
Serial-Clock Frequency
fSCL
Bus Free Time Between STOP
and START Conditions
tBUF
1.3
μs
START Condition Setup Time
tSU:STA
0.6
μs
START Condition Hold Time
tHD:STA
0.6
μs
STOP Condition Setup Time
tSU:STO
0.6
μs
Clock Low Period
tLOW
1.3
μs
Clock High Period
tHIGH
0.6
μs
tSU:DAT
100
ns
Data Setup Time
Output Fall Time
tOF
Data Hold Time
tHD:DAT
CBUS = 10pF to 400pF
From 50% SCL falling to SDA change
0.3
Minimum Pulse Width Ignored
SMBus Timeout
250
ns
0.9
μs
30
tTIMEOUT
SCL time low for reset
25
ns
35
ms
0.4
V
JTAG INTERFACE (see Figure 2)
TDI, TMS, TCK Logic-Low Input
Voltage
VIL
Input voltage falling
TDI, TMS, TCK Logic-High Input
Voltage
VIH
Input voltage rising
TDO Logic-Output Low Voltage
VOL
ISINK = 4mA
TDO Logic-Output High Voltage
VOH
ISOURCE = 1mA
2.2
TDO high impedance
-10
TDI, TMS Pullup Resistors
RJPU
Pullup to VDBP
6.5
I/O Capacitance
CI/O
TDO Leakage Current
TCK Clock Period
TCK High/Low Time
2.2
V
0.4
V
10
+10
μA
16
kΩ
50
t1
t2, t3
pF
1000
(Note 3)
60
V
500
ns
ns
TCK to TMS, TDI Setup Time
t4
15
ns
TCK to TMS, TDI Hold Time
t5
35
ns
TCK to TDO Delay
t6
500
ns
TCK to TDO High-Impedance
Delay
t7
500
ns
tD-PO
4
ms
11
ms
MISCELLANEOUS
Power-On Delay
Single-Byte EEPROM Write Cycle
Delay
(Note 4)
Note 1: Limits to -40°C are guaranteed by design.
Note 2: Guaranteed by design.
Note 3: TCK stops either high or low.
Note 4: An additional cycle is required when writing to configuration memory for the first time.
6
_______________________________________________________________________________________
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NBY271420NBY27143
SDA
tBUF
tSU:DAT
tSU:STA
tHD:DAT
tLOW
tHD:STA
tSU:STO
SCL
tHIGH
tHD:STA
tR
tF
START
CONDITION
STOP
CONDITION
REPEATED START
CONDITION
START
CONDITION
ᅄ2/! TNCvt୻ాဟኔᅄ
t1
t2
t3
TCK
t4
t5
TDI, TMS
t6
t7
TDO
TRI-STATE ONLY
ᅄ3/! KUBH୻ాဟኔᅄ
_______________________________________________________________________________________
7
````````````````````````````````````````````````````````````````````````` ࢜ቯ৔ᔫᄂቶ
(Typical values are at VCC = 3.3V, TA = +25°C, unless otherwise noted.)
NORMALIZED IN_ THRESHOLD
vs. TEMPERATURE
ICC (mA)
2.0
TA = -40°C
1.5
1.0
1.01
1.00
0.99
0.5
0.98
0
0.97
MAX16031 toc03
1.02
1.05
NORMALIZED RESET TIMEOUT PERIOD
TA = +25°C
2.5
1.03
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX16031 toc02
TA = +85°C
NORMALIZED IN_ THRESHOLD
3.0
MAX16031 toc01
VCC SUPPLY CURRENT
vs. VCC SUPPLY VOLTAGE
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
2
4
6
8
10
12
0.95
-40
14
-15
10
35
60
85
-40
-15
10
35
60
VCC (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
OUTPUT VOLTAGE LOW
vs. SINK CURRENT
ADC INTEGRAL NONLINEARITY
vs. INPUT VOLTAGE
ADC DIFFERENTIAL NONLINEARITY
vs. INPUT VOLTAGE
350
0.40
0.30
300
150
ADC DNL (LSB)
ADC INL (LSB)
200
0.10
0
-0.10
-0.20
100
0.10
0.05
0.20
250
0.15
85
MAX16031 toc06
0.50
MAX16031 toc04
400
MAX16031 toc05
0
OUTPUT VOLTAGE LOW (mV)
0
-0.05
-0.10
-0.30
50
-0.15
-0.40
0
-0.20
-0.50
0
1
2
3
4
5
6
7
INPUT VOLTAGE (DIGITAL CODE)
INPUT VOLTAGE (DIGITAL CODE)
REFERENCE VOLTAGE
vs. TEMPERATURE
NOISE HISTOGRAM
1.48
REFERENCE VOLTAGE (V)
700
600
500
400
300
1.46
1.44
1.42
1.40
1.38
1.36
200
1.34
100
1.32
0
MAX16031 toc08
ADC HALF-SCALE
VOLTAGE INPUT
800
1.30
507
508
509
510
511
ADC OUTPUT CODE
8
1.50
MAX16031 toc07
1000
900
128 256 384 512 640 768 896 1024
0
128 256 384 512 640 768 896 1024
0
SINK CURRENT (mA)
COUNTS (THOUSANDS)
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
512
513
-40
-15
10
35
60
TEMPERATURE (°C)
_______________________________________________________________________________________
85
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
0
-1
4
3
2
1
0
-1
-2
TEMPERATURE ERROR (°C)
1
MAX16031 toc10
2
5
TEMPERATURE ERROR (°C)
MAX16031 toc09
-3
-2
-4
-3
-5
-10
15
40
65
90
0
15
30
45
60
75
100
CURRENT-SENSE ACCURACY
vs. VSENSE
CURRENT-SENSE PRIMARY THRESHOLD
vs. VSENSE OVERDRIVE
-4
-5
-6
-7
-8
MAX16031 toc13
MAX16031 toc12
-3
8
6
4
2
0
-2
-9
-4
-10
2
3
4
5
6
7
DXP-DXN CAPACITANCE (nF)
8
9
CURRENT-SENSE PRIMARY THRESHOLD (μs)
TEMPERATURE ERROR
vs. DXP-DXN CAPACITANCE
-2
1
10
1
90 105
LEAKAGE RESISTANCE (MΩ)
-1
0
PATH = DXP TO VCC (+5V)
REMOTE DIODE TEMPERATURE (°C)
0
TEMPERATURE ERROR (°C)
-30 -15
PATH = DXP TO GND
TEMPERATURE (°C)
CURRENT-SENSE ACCURACY (%)
-35
15
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
2.0
MAX16031 toc14
TEMP SENSOR ACCURACY (°C)
3
TEMPERATURE ERROR
vs. LEAKAGE RESISTANCE
TEMPERATURE ERROR
vs. REMOTE DIODE TEMPERATURE
MAX16031 toc11
INTERNAL TEMPERATURE SENSOR
ACCURACY vs. TEMPERATURE
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
23 46 69 92 115 138 161 184 207 230
VSENSE (mV)
0
20
40
60
80
100
VSENSE OVERDRIVE (mV)
_______________________________________________________________________________________
9
NBY271420NBY27143
```````````````````````````````````````````````````````````````````` ࢜ቯ৔ᔫᄂቶ)ኚ*
(Typical values are at VCC = 3.3V, TA = +25°C, unless otherwise noted.)
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
```````````````````````````````````````````````````````````````````````````` ፛୭ႁී
፛୭
෗߂
৖ถ
MAX16031
MAX16032
1
1
IN2
࢟Ꮞପ‫ހ‬໭ၒྜྷ3ăด‫ݝ‬BED࣪JO3஠ቲ‫ݧ‬ዹǈభ๼ᒙᆐ࡝૵ቶ0ၷ૵ቶਜ਼࡝࣡0ᆗ‫ތ‬ॊၒྜྷă
Ᏼᆗ‫ތ‬ॊෝါሆǈJO2ਜ਼JO3ᔝ߅‫ތ‬ॊ࣪ࡼ,Ă.࣡ă‫ܘ‬ኍཀྵۣඛവၒྜྷᏴਖࢾࡼBED! JO`࢟ኹ
पᆍดă
2
2
IN3
࢟Ꮞପ‫ހ‬໭ၒྜྷ4ăด‫ݝ‬BED࣪JO4஠ቲ‫ݧ‬ዹǈభ๼ᒙᆐ࡝૵ቶ0ၷ૵ቶਜ਼࡝࣡0ᆗ‫ތ‬ॊၒྜྷă
Ᏼᆗ‫ތ‬ॊෝါሆǈJO4ਜ਼JO5ᔝ߅‫ތ‬ॊ࣪ࡼ,Ă.࣡ă‫ܘ‬ኍཀྵۣඛവၒྜྷᏴਖࢾࡼBED! JO`࢟ኹ
पᆍดă
3
3
IN4
࢟Ꮞପ‫ހ‬໭ၒྜྷ5ăด‫ݝ‬BED࣪JO5஠ቲ‫ݧ‬ዹǈభ๼ᒙᆐ࡝૵ቶ0ၷ૵ቶਜ਼࡝࣡0ᆗ‫ތ‬ॊၒྜྷă
Ᏼᆗ‫ތ‬ॊෝါሆǈJO4ਜ਼JO5ᔝ߅‫ތ‬ॊ࣪ࡼ,Ă.࣡ă‫ܘ‬ኍཀྵۣඛവၒྜྷᏴਖࢾࡼBED! JO`࢟ኹ
पᆍดă
4–7, 30, 31,
32, 39, 40,
47
4–7, 11, 12,
23, 30, 31,
32, 39,
40–44, 47
N.C.
඗ᎌೌ୻ăኞహǈ‫ݙ‬ገဧ፿ă
8, 13, 35
8, 13, 35
GND
࢐ǈ୓ჅᎌHOE፛୭ೌ୻Ᏼጙ໦ă
9
9
IN5
࢟Ꮞପ‫ހ‬໭ၒྜྷ6ăด‫ݝ‬BED࣪JO6஠ቲ‫ݧ‬ዹǈభ๼ᒙᆐ࡝૵ቶ0ၷ૵ቶਜ਼࡝࣡0ᆗ‫ތ‬ॊၒྜྷă
Ᏼᆗ‫ތ‬ॊෝါሆǈJO6ਜ਼JO7ᔝ߅‫ތ‬ॊ࣪ࡼ,Ă.࣡ă‫ܘ‬ኍཀྵۣඛവၒྜྷᏴਖࢾࡼBED! JO`࢟ኹ
पᆍดă
10
10
IN6
࢟Ꮞପ‫ހ‬໭ၒྜྷ7ăด‫ݝ‬BED࣪JO7஠ቲ‫ݧ‬ዹǈభ๼ᒙᆐ࡝૵ቶ0ၷ૵ቶਜ਼࡝࣡0ᆗ‫ތ‬ॊၒྜྷă
Ᏼᆗ‫ތ‬ॊෝါሆǈJO6ਜ਼JO7ᔝ߅‫ތ‬ॊ࣪ࡼ,Ă.࣡ă‫ܘ‬ኍཀྵۣඛവၒྜྷᏴਖࢾࡼBED! JO`࢟ኹ
पᆍดă
11
—
IN7
࢟Ꮞପ‫ހ‬໭ၒྜྷ8ăด‫ݝ‬BED࣪JO8஠ቲ‫ݧ‬ዹǈభ๼ᒙᆐ࡝૵ቶ0ၷ૵ቶਜ਼࡝࣡0ᆗ‫ތ‬ॊၒྜྷă
Ᏼᆗ‫ތ‬ॊෝါሆǈJO8ਜ਼JO9ᔝ߅‫ތ‬ॊ࣪ࡼ,Ă.࣡ă‫ܘ‬ኍཀྵۣඛവၒྜྷᏴਖࢾࡼBED! JO`࢟ኹ
पᆍดă
12
—
IN8
࢟Ꮞପ‫ހ‬໭ၒྜྷ9ăด‫ݝ‬BED࣪JO9஠ቲ‫ݧ‬ዹǈభ๼ᒙᆐ࡝૵ቶ0ၷ૵ቶਜ਼࡝࣡0ᆗ‫ތ‬ॊၒྜྷă
Ᏼᆗ‫ތ‬ॊෝါሆǈJO8ਜ਼JO9ᔝ߅‫ތ‬ॊ࣪ࡼ,Ă.࣡ă‫ܘ‬ኍཀྵۣඛവၒྜྷᏴਖࢾࡼBED! JO`࢟ኹ
पᆍดă
14
14
GPIO1
భ๼ᒙᄰ፿ၒྜྷ0ၒ߲2ă
15
15
GPIO2
భ๼ᒙᄰ፿ၒྜྷ0ၒ߲3ă
16
16
RBP
BED૥ᓰ๬വǈSCQဵด‫ޘݝ‬ညࡼ2/5W૥ᓰǈ፿᎖BEDă‫ݧ‬፿ጙᒑ3/3μGࡼ࢟ྏ୓SCQ๬വᒗ
HOEǈ‫ݙ‬ገ፿SCQሶྀੜ໚჈࢟വ৙࢟ă
17
17
SDA
TNCvtࠈቲၫ௣ǈധ૵ఎവၒྜྷ0ၒ߲ă
18
18
SCL
TNCvtࠈቲဟᒩၒྜྷă
19
19
A0
TNCvt࢐ᒍၒྜྷ1ǈభೌ୻ᒗECQĂHOE૞ኞహǈጲኡᐋჅገཇࡼ໭ୈ࢐ᒍă
20
20
A1
TNCvt࢐ᒍၒྜྷ2ǈభೌ୻ᒗECQĂHOE૞ኞహǈጲኡᐋჅገཇࡼ໭ୈ࢐ᒍă
10
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
፛୭
෗߂
৖ถ
21
ALERT
TNCvtۨவᒎာǈധ૵ఎവၒ߲ăALERTᔥክTNCvt! 3/1এഺBᒦჅහၤࡼTNCBMFSU$ቧ੓
ࢾፃăࡩ໭ୈଶ‫ࡵހ‬৺ᑇဟǈ߿खALERTၒ߲ǈ࠭ऎᒦࣥᓍ૦ǈ‫އ‬ኯࠈቲᔐሣ࿟෾ৈ໭ୈ
खည৺ᑇă
22
22
OVERT
ਭེᒎာǈധ૵ఎവၒ߲ăࡩଶ‫ࡵހ‬ਭེᓨზဟǈ߿खOVERTၒ߲ă
23
—
OVERC
ਭഗᒎာǈധ૵ఎവၒ߲ăࡩި߲ጙ଀ਭഗඡሢဟǈ߿खOVERCၒ߲ă
24
24
FAULT2
భ๼ᒙധ૵ఎവ৺ᑇၒ߲3ă
25
25
FAULT1
భ๼ᒙധ૵ఎവ৺ᑇၒ߲2ă
26
26
RESET
భ๼ᒙധ૵ఎവআᆡၒ߲ă
27
27
TMS
KUBH‫ހ‬၂ෝါኡᐋၒྜྷǈ‫ݧ‬፿ጙᒑ21lΩ࢟ᔜด‫ݝ‬࿟౯ᒗWECQă
28
28
TCK
KUBH‫ހ‬၂ဟᒩၒྜྷă
29
29
TDI
KUBH‫ހ‬၂ၫ௣ၒྜྷǈ‫ݧ‬፿ጙᒑ21lΩ࢟ᔜด‫ݝ‬࿟౯ᒗWECQă
33
33
TDO
KUBH‫ހ‬၂ၫ௣ၒ߲ă
34
34
DBP
ด‫ݝ‬ၫᔊ࢟വᆮኹ໭ၒ߲ăECQਜ਼HOEᒄମೌ୻ጙᒑ2μGࡼ๬വ࢟ྏǈ‫ݙ‬ገ፿ECQሶᅪ‫ݝ‬
࢟വ৙࢟ă
36
36
ABP
ด‫ݝ‬ෝผ࢟വᆮኹ໭ၒ߲ăBCQਜ਼HOEᒄମೌ୻ጙᒑ2μGࡼ๬വ࢟ྏǈ‫ݙ‬ገ፿BCQሶᅪ‫ݝ‬
࢟വ৙࢟ă
37, 38
37, 38
VCC
໭ୈ࢟Ꮞ࢟ኹă‫ݧ‬፿ጙᒑ2μG࢟ྏ୓WDD ๬വᒗHOEă
41
—
CS-
࢟ഗଶ‫ހ‬ၒྜྷঌ૵ǈ‫ܘ‬ኍມᒙᏴ4Wᒗ39Wǈጲᑵ‫ޟ‬৔ᔫă
42
—
CS+
࢟ഗଶ‫ހ‬ၒྜྷᑵ૵ǈ‫ܘ‬ኍມᒙᏴ4Wᒗ39Wǈጲᑵ‫ޟ‬৔ᔫă
43
—
DXN2
Ꮠ࣡औ૵਌3ঌၒྜྷ࣡ăྙਫ‫ݙ‬ဧ፿Ꮠ࣡ଶ‫ހ‬৖ถǈ୓EYQ3ೌ୻ᒗEYO3ă
44
—
DXP2
Ꮠ࣡औ૵਌3ᑵၒྜྷ࣡ăྙਫ‫ݙ‬ဧ፿Ꮠ࣡ଶ‫ހ‬৖ถǈ୓EYQ3ೌ୻ᒗEYO3ă
45
45
DXN1
Ꮠ࣡औ૵਌2ঌၒྜྷ࣡ăྙਫ‫ݙ‬ဧ፿Ꮠ࣡ଶ‫ހ‬৖ถǈ୓EYQ2ೌ୻ᒗEYO2ă
46
46
DXP1
Ꮠ࣡औ૵਌2ᑵၒྜྷ࣡ăྙਫ‫ݙ‬ဧ፿Ꮠ࣡ଶ‫ހ‬৖ถǈ୓EYQ2ೌ୻ᒗEYO2ă
48
48
IN1
࢟Ꮞପ‫ހ‬໭ၒྜྷ2ăด‫ݝ‬BED࣪JO2஠ቲ‫ݧ‬ዹǈభ๼ᒙᆐ࡝૵ቶ0ၷ૵ቶਜ਼࡝࣡0ᆗ‫ތ‬ॊၒྜྷă
Ᏼᆗ‫ތ‬ॊෝါሆǈJO2ਜ਼JO3ᔝ߅‫ތ‬ॊ࣪ࡼ,Ă.࣡ă‫ܘ‬ኍཀྵۣඛവၒྜྷ࣒ᏴਖࢾࡼBED! JO`
࢟ኹपᆍดă
—
—
EP
ൡ੆๤ăFQ୻࢐ǈFQด‫ݝ‬ᎧHOEሤೌă‫ݙ‬ገᔫᆐᓍገ୻࢐࣡ă
MAX16031
MAX16032
21
______________________________________________________________________________________
11
NBY271420NBY27143
``````````````````````````````````````````````````````````````````````` ፛୭ႁී)ኚ*
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
`````````````````````````````````````````````````````````````````````````` ৖ถౖᅄ
VCC
INTERNAL
TEMPERATURE SENSOR
CIRCUITRY
OSCILLATOR
IN1
10-BIT
ADC
ANALOG
REGULATOR
ABP
DIGITAL
REGULATOR
DBP
1.4V INTERNAL
REFERENCE
RBP
INPUT RANGE
SELECTION
FAULT1
REGISTERS
IN2
INPUT RANGE
SELECTION
IN3
INPUT RANGE
SELECTION
IN4
INPUT RANGE
SELECTION
IN5
INPUT RANGE
SELECTION
IN6
INPUT RANGE
SELECTION
*IN7
INPUT RANGE
SELECTION
*IN8
INPUT RANGE
SELECTION
FAULT
COMPARATORS
FAULT2
OVERT
RESET
MULTIPLEXER
GPIO1
GPIO2
SDA
SCL
EEPROM
SMBus
SERIAL
INTERFACE
ALERT
A0
A1
DXP1
DXN1
*DXP2
EXTERNAL
TEMPERATURE
SENSOR
CIRCUITRY
TMS
*DXN2
*CS+
*CS-
CURRENT-SENSE
AMPLIFIER/
COMPARATOR
MAX16031/
MAX16032
JTAG
SERIAL
INTERFACE
TCK
TDI
TDO
OVERC
*MAX16031 ONLY
12
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
READ/
WRITE
00h
—
R
NBY271420NBY27143
‫ܭ‬2/! ࢐ᒍ
DESCRIPTION
IN1 ADC Result Register (MSB)
01h
—
R
IN1 ADC Result Register (LSB)
02h
—
R
IN2 ADC Result Register (MSB)
03h
—
R
IN2 ADC Result Register (LSB)
04h
—
R
IN3 ADC Result Register (MSB)
05h
—
R
IN3 ADC Result Register (LSB)
06h
—
R
IN4 ADC Result Register (MSB)
07h
—
R
IN4 ADC Result Register (LSB)
08h
—
R
IN5 ADC Result Register (MSB)
09h
—
R
IN5 ADC Result Register (LSB)
0Ah
—
R
IN6 ADC Result Register (MSB)
0Bh
—
R
IN6 ADC Result Register (LSB)
0Ch
—
R
IN7 ADC Result Register (MSB)*
0Dh
—
R
IN7 ADC Result Register (LSB)*
0Eh
—
R
IN8 ADC Result Register (MSB)*
0Fh
—
R
IN8 ADC Result Register (LSB)*
10h
—
R
Internal Temperature Sensor ADC Result Register (MSB)
11h
—
R
Internal Temperature Sensor ADC Result Register (LSB)
12h
—
R
Remote Temperature Sensor 1 ADC Result Register (MSB)
13h
—
R
Remote Temperature Sensor 1 ADC Result Register (LSB)
14h
—
R
Remote Temperature Sensor 2 ADC Result Register (MSB)
15h
—
R
Remote Temperature Sensor 2 ADC Result Register (LSB)
16h
—
R
Current-Sense ADC Result Register
17h
97h
R/W
Voltage Monitoring Input ADC Range Selection (IN1–IN4)
18h
98h
R/W
Voltage Monitoring Input ADC Range Selection (IN5–IN8)
19h
99h
R/W
Current-Sense Gain/Primary Threshold and Remote Temperature Sensor 1 Gain Trim
1Ah
9Ah
R/W
Voltage Monitoring Input Enable
Internal/Remote Temperature Sensor, Current Sense, and ALERT Enables and
Remote Temperature Sensor 1 Offset Trim
1Bh
9Bh
R/W
1Ch
9Ch
R/W
Voltage Monitoring Input Single-Ended/Differential and Unipolar/Bipolar Selection
1Dh
9Dh
R/W
FAULT1 Dependency Selection
1Eh
9Eh
R/W
FAULT2 Dependency Selection
1Fh
9Fh
R/W
OVERT Dependency Selection
20h
A0h
R/W
RESET Dependency and Timeout Selection
21h
A1h
R/W
RESET IN1–IN8 Dependency Selection
22h
A2h
R/W
GPIO1 Configuration
23h
A3h
R/W
GPIO1 Dependency Selection
24h
A4h
R/W
GPIO2 Configuration
______________________________________________________________________________________
13
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬2/! ࢐ᒍ)ኚ*
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
READ/
WRITE
25h
A5h
R/W
GPIO2 Dependency Selection
26h
A6h
R/W
IN1 Primary Undervoltage Threshold
27h
A7h
R/W
IN1 Primary Overvoltage Threshold
28h
A8h
R/W
IN1 Secondary Undervoltage Threshold
29h
A9h
R/W
IN1 Secondary Overvoltage Threshold
2Ah
AAh
R/W
IN2 Primary Undervoltage Threshold
2Bh
ABh
R/W
IN2 Primary Overvoltage Threshold
2Ch
ACh
R/W
IN2 Secondary Undervoltage Threshold
2Dh
ADh
R/W
IN2 Secondary Overvoltage Threshold
2Eh
AEh
R/W
IN3 Primary Undervoltage Threshold
2Fh
AFh
R/W
IN3 Primary Overvoltage Threshold
30h
B0h
R/W
IN3 Secondary Undervoltage Threshold
31h
B1h
R/W
IN3 Secondary Overvoltage Threshold
32h
B2h
R/W
IN4 Primary Undervoltage Threshold
33h
B3h
R/W
IN4 Primary Overvoltage Threshold
34h
B4h
R/W
IN4 Secondary Undervoltage Threshold
35h
B5h
R/W
IN4 Secondary Overvoltage Threshold
36h
B6h
R/W
IN5 Primary Undervoltage Threshold
37h
B7h
R/W
IN5 Primary Overvoltage Threshold
38h
B8h
R/W
IN5 Secondary Undervoltage Threshold
39h
B9h
R/W
IN5 Secondary Overvoltage Threshold
3Ah
BAh
R/W
IN6 Primary Undervoltage Threshold
3Bh
BBh
R/W
IN6 Primary Overvoltage Threshold
3Ch
BCh
R/W
IN6 Secondary Undervoltage Threshold
3Dh
BDh
R/W
IN6 Secondary Overvoltage Threshold
3Eh
BEh
R/W
IN7 Primary Undervoltage Threshold*
3Fh
BFh
R/W
IN7 Primary Overvoltage Threshold*
40h
C0h
R/W
IN7 Secondary Undervoltage Threshold*
41h
C1h
R/W
IN7 Secondary Overvoltage Threshold*
42h
C2h
R/W
IN8 Primary Undervoltage Threshold*
43h
C3h
R/W
IN8 Primary Overvoltage Threshold*
44h
C4h
R/W
IN8 Secondary Undervoltage Threshold*
45h
C5h
R/W
IN8 Secondary Overvoltage Threshold*
46h
C6h
R/W
Internal Temperature Sensor Primary Overtemperature Threshold (MSB)
47h
C7h
R/W
Internal Temperature Sensor Secondary Overtemperature Threshold (MSB)
48h
C8h
R/W
Remote Temperature Sensor 1 Primary Overtemperature Threshold
49h
C9h
R/W
Remote Temperature Sensor 1 Secondary Overtemperature Threshold
4Ah
CAh
R/W
Remote Temperature Sensor 2 Primary Overtemperature Threshold
14
DESCRIPTION
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
READ/
WRITE
DESCRIPTION
4Bh
CBh
R/W
Remote Temperature Sensor 2 Secondary Overtemperature Threshold
4Ch
CCh
R/W
Overcurrent Secondary Threshold
4Dh
CDh
R/W
Remote Temperature Sensor Primary/Secondary Overtemperature Threshold (LSBs).
External Temperature Sensor 2 Offset Trim
4Eh
CEh
R/W
Remote Temperature Sensor 1/2 Primary/Secondary Overtemperature Threshold (LSBs)
4Fh
CFh
R/W
Remote Temperature Sensor 2 Gain Trim
50h
D0h
R/W
Remote Temperature Sensor Short/Open Status
51h
D1h
R/W
IN1–IN8 Primary Threshold Fault Status
52h
D2h
R/W
IN1–IN8 Secondary Threshold Fault Status
53h
D3h
R/W
Temperature/Current Threshold Fault Status
54h
D4h
R/W
Remote Temperature Sensor Short/Open Fault Mask
55h
D5h
R/W
IN1–IN8 Primary Threshold Fault Mask
56h
D6h
R/W
IN1–IN8 Secondary Threshold Fault Mask
57h
D7h
R/W
Temperature/Current Threshold Fault Mask
58h
D8h
R/W
IN1–IN8 Primary Undervoltage Faults Triggering Fault EEPROM
59h
D9h
R/W
IN1–IN8 Primary Overvoltage Faults Triggering Fault EEPROM
5Ah
DAh
R/W
Temperature/Current Faults Triggering Fault EEPROM
5Bh
DBh
R/W
Temperature Filter Selection and Postboot Fault Mask Time
5Ch
DCh
R/W
Threshold Fault Options and Overcurrent Fault Timeout
5Dh
DDh
—
5Eh
DEh
R/W
Reserved
Customer Firmware Version
5Fh
DFh
R/W
60h–7Fh
E0h–FFh
—
Reserved
EEPROM and Configuration Lock
—
80h
R
IN1–IN8 Primary Threshold Fault Status at Time of Fault
—
81h
R
IN1–IN8 Secondary Threshold Fault Status at Time of Fault
—
82h
R
Temperature/Current Threshold Fault Status at Time of Fault
—
83h
R
IN1 Conversion Result at Time of Fault
—
84h
R
IN2 Conversion Result at Time of Fault
—
85h
R
IN3 Conversion Result at Time of Fault
—
86h
R
IN4 Conversion Result at Time of Fault
—
87h
R
IN5 Conversion Result at Time of Fault
—
88h
R
IN6 Conversion Result at Time of Fault
—
89h
R
IN7 Conversion Result at Time of Fault*
—
8Ah
R
IN8 Conversion Result at Time of Fault*
—
8Bh
R
Internal Temperature Sensor Conversion Result at Time of Fault
—
8Ch
R
Remote Temperature Sensor 1 Conversion Result at Time of Fault
—
8Dh
R
Remote Temperature Sensor 2 Conversion Result at Time of Fault*
—
8Eh
R
Current-Sense Conversion Result at Time of Fault*
*ஞሢNBY27142ă
______________________________________________________________________________________
15
NBY271420NBY27143
‫ܭ‬2/! ࢐ᒍ)ኚ*
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
``````````````````````````````` ሮᇼႁී
গገ
NBY271420NBY27143۞౪J3D0TNCvtਜ਼KUBHࠈቲ୻ాǈ
፿᎖षᆰ଎ࡀ໭ਜ਼FFQSPNǈ෭ጙဟరᒑถဧ፿ጙᒬ୻ాă
ᄰਭᑚቋ୻ాषᆰด‫߼ࡀݝ‬໭ࡼሮᇼႁී༿‫ݬ‬ఠ J3D0TNCvt
ରྏࠈቲ୻ాਜ਼ KUBHࠈቲ୻ా‫ݝ‬ॊă‫۾‬ၫ௣ᓾ೯‫ݧ‬፿ᄂ
ၐᏖࢾ‫ܭ‬ာ࣪።࢐ᒍᆡᒙࡼၫ௣ᆡăಿྙǖs26i\4;1^࣪።
᎖࢐ᒍᆐ26! )လങ஠ᒜ*ࡼ଎ࡀ໭ࡼ࢒1ᆡᒗ࢒4ᆡă
ჅᎌFFQSPNࡼ࿟࢟আᆡ)QPS*߲‫ޣ‬෦ཱྀᒋ௿ᆐ1ăࡩWDD
ࡉࡵ3/9W་ኹ‫ܕ‬Ⴤ)VWMP*ඡሢဟǈ߿खQPSăQPSਭ߈ᒦǈ
໭ୈ໪ࣅ࿟࢟ၿኔă࿟࢟໐ମǈჅᎌ‫ۻ‬ପ‫ހ‬ၒྜྷࠀ᎖৺
ᑇື܎ᓨზǈ݀୓FFQSPNดྏআᒜࡵሤ።ࡼ଎ࡀ໭ᆡă
໪ࣅਭ߈੒ဟ2/92ntăᄰਭ‫߈ܠ‬s6Ci\4;1^ǈభጲ࿸ᒙ໪ࣅ
ਭ߈உၦઁணᒏପ‫ࡼހ‬ဟମǈᔢ‫ޠ‬భࡉ27t! )‫ݬ‬୅ ࣶሲ࿸
ᒙ ‫ݝ‬ॊ*ăRESETᏴ໪ࣅਭ߈ᒦᆐࢅ࢟ຳǈ݀Ᏼ໪ࣅઁǈ
ࡩჅᎌ‫ۻ‬ପ‫ހ‬ᄰࡸ࣒ࡉࡵ໚ඡሢገཇઁǈଖኚۣߒጙৈ
ިဟᒲ໐)భ‫࢟ࢅࡼ*߈ܠ‬ຳă
NBY271420NBY27143భପ‫ࡉࣶހ‬9വ࢟ኹĂ2വ࢟ഗਜ਼4
ৈᆨ࢛ࣞă໪ࣅઁǈด‫ࣶݝ‬വআ፿໭ክણ༤ધࡵඛവၒ
ྜྷăᄫᒏআ፿໭༤ધဟǈ21ᆡBED୓ෝผ೟ᓞધᆐၫᔊ
೟ǈ݀୓உਫࡀ߼Ᏼ଎ࡀ໭ᒦăࣶവআ፿໭ඛክણጙৈ
ᒲ໐ǈด‫ݝ‬൝૷࢟വ୓ᓞધஉਫᎧࡀ߼ඡሢ஠ቲ‫୷܈‬ă
ࡩᓞધஉਫި߲భ‫߈ܠ‬ඡሢဟǈࠥࠨᓞધ୓‫ޘ‬ညጙৈ৺
ᑇă൝૷ၒ߲భጲো௣ࣶᒬ৺ᑇᔝ੝࿸ᒙăࠥᅪǈથభ
࿸ᒙखည৺ᑇဟ໪ࣅ৺ᑇ଑ഺ৖ถǈ࠭ऎ୓Ⴥᎌ৺ᑇቧ
ᇦᔈࣅቖྜྷFFQSPNă
࢟ኹପ‫ހ‬
NBY27142ᄋ৙9വၒྜྷJO2–JO9፿᎖࢟ኹପ‫ހ‬ǗNBY27143
ᄋ৙ 7 വၒྜྷ JO2–JO7 ፿᎖࢟ኹପ‫ހ‬ăᄰਭ s28i\8;1^ਜ਼
s29i\8;1^࿸ᒙඛവၒྜྷ࢟ኹࡼपᆍ)‫ݬ‬୅‫ܭ‬3*ăᄰਭ࿸ᒙ
s2Bi\8;1^ဧถඛവၒྜྷ࢟ኹࡼପ‫ހ‬৖ถ)‫ݬ‬୅‫ܭ‬3*ăඛവ࢟
ኹପ‫ހ‬ၒྜྷ௥ᎌ5ৈభ࿸ᒙඡሢǖጙ଀་ኹĂऔ଀་ኹĂ
ጙ଀ਭኹĂऔ଀ਭኹăჅᎌ࢟ኹඡሢᔊஂ౑ࣞ௿ᆐ9ᆡă
ஞ୓ᓞધஉਫࡼ9ৈ঱ᎌ቉ᆡᎧඡሢ஠ቲ‫୷܈‬ǈඡሢᒣૄ
࿸ᒙ༿‫ݬ‬ఠ ࣶሲ࿸ᒙ ‫ݝ‬ॊăჅᎌ࢟ኹପ‫ހ‬ၒྜྷඡሢ଎ࡀ
໭ࡼ࢐ᒍྙ‫ܭ‬2Ⴥာă
BEDၒྜྷభ࿸ᒙ߅ᆗ‫ތ‬ॊਜ਼࡝࣡ೝᒬ‫ݙ‬ᄴෝါ)‫ݬ‬୅‫ܭ‬4*ă
ᆗ‫ތ‬ॊෝါሆǈೝৈၒྜྷᔝ߅೫‫ތ‬ॊ࣪ǈ୓‫ތ‬ॊ࣪ࡼඛ
വၒྜྷ஠ቲ࡝࣡ᓞધǈ཭ઁஉਫሤିǈᅲ߅ᆗ‫ތ‬ॊᓞધă
࡝૵ቶ૞ၷ૵ቶၒྜྷ௿ᑽߒᆗ‫ތ‬ॊෝါă࡝૵ቶ‫ތ‬ॊ৔
ᔫෝါஞᏤ኏ၒྜྷᑵ૵ቶࡼ‫ތ‬ॊ࢟ኹǗၷ૵ቶ‫ތ‬ॊ৔ᔫ
ෝါᏤ኏ၒྜྷᑵĂঌ૵ቶࡼ‫ތ‬ॊ࢟ኹăၷ૵ቶᓞધஉਫ
ጲऔ஠ᒜ‫ݗ‬൩ৃါ‫ܭ‬ာăಿྙǖ.2W ‫ތ‬ॊၒྜྷ)೟߈ᆐ
6/7W*ࡼလ஠ᒜࡔ൩ᆐ.294ǈऔ஠ᒜ‫ݗ‬൩‫ܭ‬ာᆐ2212112112ă
࡝࣡ෝါሆǈᓞધ࡝࣡ၒྜྷᎧ࢐ᒄମࡼቧ੓ăኡᐋ࡝࣡
ෝါဟǈᇄ൙s2Di\8;5^ᆐੜᒋǈᓞધஉਫဪᒫᆐ࡝૵ቶă
࡝࣡ਜ਼ᆗ‫ތ‬ॊෝါሆǈBEDᓞધ৛ါྙሆჅာă
‫ܭ‬3/! ၒྜྷପ‫ހ‬पᆍਜ਼ဧถ
REGISTER
ADDRESS
17h
16
EEPROM
MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
[1:0]
IN1 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[3:2]
IN2 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[5:4]
IN3 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[7:6]
IN4 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
97h
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
NBY271420NBY27143
‫ܭ‬3/! ၒྜྷପ‫ހ‬पᆍਜ਼ဧถ)ኚ*
REGISTER
ADDRESS
18h
1Ah
EEPROM
MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
[1:0]
IN5 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[3:2]
IN6 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[5:4]
IN7 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[7:6]
IN8 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
98h
[0]
IN1 Monitoring Enable:
0 = IN1 monitoring disabled
1 = IN1 monitoring enabled
[1]
IN2 Monitoring Enable:
0 = IN2 monitoring disabled
1 = IN2 monitoring enabled
[2]
IN3 Monitoring Enable:
0 = IN3 monitoring disabled
1 = IN3 monitoring enabled
[3]
IN4 Monitoring Enable:
0 = IN4 monitoring disabled
1 = IN4 monitoring enabled
[4]
IN5 Monitoring Enable:
0 = IN5 monitoring disabled
1 = IN5 monitoring enabled
[5]
IN6 Monitoring Enable:
0 = IN6 monitoring disabled
1 = IN6 monitoring enabled
[6]
IN7 Monitoring Enable:
0 = IN7 monitoring disabled
1 = IN7 monitoring enabled
[7]
IN8 Monitoring Enable:
0 = IN8 monitoring disabled
1 = IN8 monitoring enabled
9Ah
______________________________________________________________________________________
17
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
࡝૵ቶ࡝࣡ෝါǖ
ၷ૵ቶ0࡝૵ቶᆗ‫ތ‬ॊෝါǖ
⎛ VIN−
⎞
X ADC = INT ⎜
× 1024⎟
⎝ VRANGE
⎠
⎛ VIN+
⎞
⎛ VIN−
⎞
X ADC = INT ⎜
× 1024⎟ − INT ⎜
× 1024⎟
⎝ VRANGE
⎠
⎝ VRANGE
⎠
໚ᒦǈY BED ဵᓞધஉਫࡼလ஠ᒜ൩ǈW JO.ဵጙവପ‫࢟ހ‬
ኹࡼၒྜྷǈWSBOHF ဵs28iਜ਼s29iᒦ࿸ᒙࡼၒྜྷ࢟ኹपᆍă
໚ᒦǈYBED ဵᓞધஉਫࡼလ஠ᒜࡔ൩ǈWJO, ဵ‫ތ‬ॊପ‫࢟ހ‬
ኹၒྜྷ࣪ࡼᑵၒྜྷǈW JO. ဵ‫ތ‬ॊପ‫࢟ހ‬ኹၒྜྷ࣪ࡼঌၒ
ྜྷǈWSBOHF ဵs28iਜ਼s29iᒦ࿸ᒙࡼBED JO`࢟ኹपᆍă
‫ܭ‬4/! JO2–JO9! BEDၒྜྷෝါኡᐋ
REGISTER
ADDRESS
1Ch
18
EEPROM
MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
[0]
IN1/IN2 Single-Ended/Pseudo-Differential:
0 = IN1 and IN2 conversions are single-ended.
1 = IN1 and IN2 conversions are pseudo-differential (IN1 to IN2).
[1]
IN3/IN4 Single-Ended/Pseudo-Differential:
0 = IN3 and IN4 conversions are single-ended.
1 = IN3 and IN4 conversions are pseudo-differential (IN3 to IN4).
[2]
IN5/IN6 Single-Ended/Pseudo-Differential:
0 = IN5 and IN6 conversions are single-ended.
1 = IN5 and IN6 conversions are pseudo-differential (IN5 to IN6).
[3]
IN7/IN8 Single-Ended/Pseudo-Differential:
0 = IN7 and IN8 conversions are single-ended.
1 = IN7 and IN8 conversions are pseudo-differential (IN7 to IN8).
[4]
IN1/IN2 Unipolar/Bipolar:
0 = IN1 and IN2 conversions are unipolar.
1 = IN1 and IN2 conversions are bipolar (two’s complement).
[5]
IN3/IN4 Unipolar/Bipolar:
0 = IN3 and IN4 conversions are unipolar.
1 = IN3 and IN4 conversions are bipolar (two’s complement).
[6]
IN5/IN6 Unipolar/Bipolar:
0 = IN5 and IN6 conversions are unipolar.
1 = IN5 and IN6 conversions are bipolar (two’s complement).
[7]
IN7/IN8 Unipolar/Bipolar:
0 = IN7 and IN8 conversions are unipolar.
1 = IN7 and IN8 conversions are bipolar (two’s complement).
9Ch
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
NBY27142ᄋ৙࢟ഗଶ‫ހ‬ၒྜྷDT,0DT.ਜ਼ጙৈ࢟ഗଶ‫ހ‬ह
ࡍ໭ǈ፿᎖࢟ഗପ‫ݬ)ހ‬୅ᅄ4*ăೝৈభ‫࢟߈ܠ‬ഗଶ‫ހ‬ඡ
ሢǖጙ଀ਭഗਜ਼औ଀ਭഗăᆐ౐Ⴅଶ‫ހ‬৺ᑇǈᏴOVERC
ၒ߲࣡୻ෝผ‫୷܈‬໭ࡻࡵጙ଀ਭഗඡሢăጙ଀ඡሢ৛ါᆐǖ
V
ITH = CSTH
RSENSE
-
CS-
RSENSE
TO ADC MUX
)
1
ᆨࣞପ‫ހ‬
MAX16031
LOAD
NBY27142ᄋ৙ೝᔝᏐ࣡औ૵਌ၒྜྷEYQ20EYO2ਜ਼EYQ30
EYO3ਜ਼ጙവด‫ݝ‬ᆨࣞଶ‫ހ‬ǗNBY27143ᐌᄋ৙ጙᔝᏐ࣡
औ૵਌ၒྜྷEYQ20EYO2ਜ਼ጙവด‫ݝ‬ᆨࣞଶ‫ހ‬ăቅᓰ଎ࡀ
໭࣪ᐐፄਜ਼ပࢯ஠ቲࢯᑳǈጲး੝‫ݙ‬ᄴቯ੓ࡼᏐ࣡औ૵
਌ăด‫ݝ‬ᆨࣞଶ‫ހ‬ᎅ৔‫ޣ‬ቅᓰă߹೫ပࢯ0ᐐፄቅᓰ৖ถ
ᅪǈকᇹ೰໭ୈથ௥ᎌጙৈభ࿸ᒙࡼࢅᄰ൉݆໭ăᆨࣞ
ଶ‫࢟ހ‬വऱౖᅄྙᅄ5ჅာǈᏐ࣡औ૵਌ဣଔ࿟ဵೌ୻߅
औ૵਌ࡼ஭ᄏ਌ăਈ᎖ᇙ‫ތ‬ॊᇜጲૺ஭ᄏ਌ᒜᐆ࿜ࡼሤ
ਈቧᇦǈ༿‫ݬ‬ఠ።፿‫܊‬଑BO2168ਜ਼BO2:55ă
+
OVERC
−
ࡩ࢟ഗިਭs6Di\5^࿸ᒙࡼጙ଀ਭഗඡሢဟǈOVERCჄࡀă
ሶs64i\7^ቖĎ2ďభ༹߹ჄࡀăOVERCஞᎧጙ଀ਭഗඡሢ
ᎌਈăऔ଀ਭഗඡሢ௼ࢾ໚჈৺ᑇၒ߲ᓨზăᄰਭBED
ᓞધਜ਼ၫᔊ‫୷܈‬૝ࡻऔ଀ਭഗඡሢăऔ଀ਭഗඡሢ௥ᎌ
ጙৈዓဟǈᏴs6Di\2;1^ᒦ஠ቲ࿸ᒙăᄰਭ࿸ᒙs2Ci\4^ǈభ
ጲဧถ0ணᒏጙ଀ਜ਼औ଀࢟ഗଶ‫ހ‬৺ᑇၒ߲ă
*AV
+
VL
(
V
× AV
X ADC = SENSE
× 28
VRBP
໚ᒦǈY BED ဵ9ᆡလ஠ᒜBEDᓞધᒋǈW TFOTF ᆐW DT, .
W DT.ǈB W ဵs2:i\2;1^࿸ᒙࡼ࢟ഗଶ‫࢟ހ‬ኹᐐፄǈW SCQ ဵ
SCQ૥ᓰ࢟ኹ)࢜ቯᒋ2/5W*ă
VMON
CS+
໚ᒦǈJUI ဵჅ࿸ᒙࡼ࢟ഗඡሢǈWDTUI ဵs2:i\2;1^࿸ᒙࡼ
ඡሢǈS TFOTF ဵଶഗ࢟ᔜăs2:iࡼ৖ถႁීྙ‫ܭ‬5Ⴥာă
࢟ഗଶ‫ހ‬ᓞધࡼBEDၒ߲ᆐǖ
+
-
*VCSTH
*ADJUSTABLE BY r19h[1:0]
ᅄ4/! ࢟ഗଶ‫ހ‬ऱౖᅄ
‫ܭ‬5/! ጙ଀ਭഗඡሢਜ਼Ꮠ࣡ᆨࣞଶ‫ހ‬ᐐፄࢯஂ
REGISTER
ADDRESS
19h
4Fh
EEPROM
MEMORY
ADDRESS
99h
CFh
BIT RANGE
[1:0]
DESCRIPTION
Overcurrent Primary Threshold and Current-Sense Gain Setting:
00 = 200mV threshold, AV = 6V/V
01 = 100mV threshold, AV = 12V/V
10 = 50mV threshold, AV = 24V/V
11 = 25mV threshold, AV = 48V/V
[7:2]
Remote Temperature Sensor 1 Gain Trim. Note bit 6 is inverted.
[5:0]
Remote Temperature Sensor 1 Gain Trim
[7:6]
Not used
______________________________________________________________________________________
19
NBY271420NBY27143
࢟ഗପ‫ހ‬
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬6/! ᆨࣞၫ௣ৃါ
ABP
IHIGH
ILOW
DXP_
-
TO ADC MUX
+
VBIAS ~ 100mV
DXN_
IBIAS
ABP
TEMPERATURE (°C)
DIGITAL CODE
+128
1100000000
+125
1011111010
+100
1011010000
+25.5
1000110011
0
1000000000
-10
0111101100
-75
0101101010
-100
0100111000
-128
0100000000
Diode fault
0000000000
ᅄ5/! Ꮠ࣡ᆨࣞଶ‫ހ‬हࡍ໭࢟വ
BED ࣪ด‫ࠅݝ‬ঢ໭ਜ਼Ꮠ࣡ࠅঢ໭हࡍ໭ၒ߲஠ቲᓞધă
BEDඛᓞધጙࠨჅᎌဧถࡼ‫ݬ‬೟ǈ࣒୓ᆨࣞᓞધஉਫᎧᆨ
ࣞඡሢ଎ࡀ໭)s57iᒗs5Ciਜ਼s5Ei*ࡼၫᒋ஠ቲ‫୷܈‬ăᎧ࢟
ኹၒྜྷ‫୷܈‬໭‫ݙ‬ᄴࡼဵǈᆨࣞඡሢ‫୷܈‬໭ࡼᔊஂ౑ࣞᆐ
21ᆡăႰ཭࿸ᒙ໚჈ၒ߲ဟᎧᆨࣞ৺ᑇᎌਈǈࡣOVERT
ᓜ፿᎖ᆨࣞ৺ᑇۨவၒ߲ăᎌਈభ‫߈ܠ‬ၒ߲ࡼሤઑਈᇹǈ
༿‫ݬ‬ఠభ‫߈ܠ‬ၒྜྷ0ၒ߲‫ݝ‬ॊǈਈ᎖ᆨࣞ৺ᑇඡሢ࿸ᒙࡼ
ሮᇼቧᇦ༿‫ݬ‬ఠ৺ᑇ਌ಯ‫ݝ‬ॊă
Ꮠ࣡ᆨࣞଶ‫ހ‬हࡍ໭భଶ‫ހ‬EYQ`ਜ਼EYO`ᒄମࡼ࣢വਜ਼
ఎവ৺ᑇăଶ‫ࠥࡵހ‬ಢူୈઁख߲৺ᑇۨவቧ੓ăᆨࣞ
ඡሢਜ਼ᓞધஉਫ‫ݧ‬፿औ஠ᒜ‫ݗ‬൩ৃါ‫ܭ‬ာǈ2! MTC࣪።᎖
1/6°Dăᆨࣞᓞધஉਫࡼၫ௣ৃါྙ‫ܭ‬6Ⴥာă
ᄰਭᐐፄ଎ࡀ໭s2:i\8;3^0s5Gi\6;1^ਜ਼ပࢯ଎ࡀ໭s2Ci\8;6^0
s5Ei\7;5^ǈ፿ઓభ࣪Ꮠ࣡ᆨࣞଶ‫ࡼހ‬ပࢯਜ਼ᐐፄ஠ቲࢯஂǈ
ྙ‫ܭ‬5ਜ਼‫ܭ‬7Ⴥာăࢯஂᐐፄᒋభጲࡻࡵ୷ࡍࡼདࣅ࢟ഗ
)67μB*ǈጲ‫ޡݗ‬Ꮠ࣡औ૵਌ࡼoᇹၫăပࢯ೟߇ጲ5ǈ݀
୓໚ᎧᓞધஉਫሤࢶଝăNBY271420NBY27143ࡼEYO`
ਜ਼EYQ`࣡ᎌጙৈด‫ࢅݝ‬ᄰ൉݆໭ǈᎌᓐ᎖ଢ଼ࢅᐅဉăਈ
᎖൉݆໭஀ᒏຫൈࡼ࿸ᒙ༿‫ݬ‬ఠࣶሲ࿸ᒙ‫ݝ‬ॊă
ࣗནBEDஉਫ
భᄰਭJ 3D0TNCvtରྏ୻ా૞KUBH୻ా࠭BEDᓞધ଎ࡀ
໭ࣗནBEDᓞધஉਫ)‫ܭ‬8*ăᑚቋ଎ࡀ໭થభ፿᎖৺ᑇඡ
ሢ‫୷܈‬ǈ࢟ኹପ‫ހ‬ඡሢஞᎧᓞધஉਫࡼ༄9ৈNTC‫୷܈‬ă
20
భ‫߈ܠ‬ၒྜྷ0ၒ߲
NBY27142௥ᎌೝവᄰ፿৺ᑇၒ߲ FAULT1ਜ਼FAULT2Ă
ጙവআᆡၒ߲RESETĂጙവᆨࣞ৺ᑇۨவၒ߲OVERTĂ
ጙവ࢟ഗ৺ᑇၒ߲OVERCĂೝവᄰ፿ၒྜྷ0ၒ߲HQJP2ਜ਼
HQJP3ጲૺጙവTNCBMFSU$ରྏၒ߲ALERTăNBY27143
߹೫‫ݙ‬ᄋ৙OVERCᅪǈ໚჈ၒ߲ᎧNBY27142ሤᄴăჅᎌ
ၒ߲࣒ဵധ૵ఎവǈኊ୻࿟౯࢟ᔜă߹OVERCጲᅪǈ৺
ᑇၒ߲௿‫ܕݙ‬ჄǈOVERCဵ॥‫ܕ‬Ⴤན௼᎖s6Diᒦࡼሤਈ
ᆡăࡣඛৈ৺ᑇ‫ܪ‬ᒔᆡ‫ܕ‬Ⴤ)༿‫ݬ‬ఠ৺ᑇ਌ಯ‫ݝ‬ॊ*ǈ‫ܘ‬ኍ
ᄰਭቖྜྷ࣪።‫ܕ‬ჄᆡᆐĎ2ďĂ໚჈ᆡᆐ1ࡼᔊஂ༹߹‫ܕ‬Ⴤ
ᓨზǈጙࠨ༹߹ጙᆡă
ᄰ፿ၒ߲)FAULT1ਜ਼FAULT2*ࡼ৖ถሤᄴǈ݀భো௣ਭኹĂ
་ኹĂਭེਜ਼ਭഗ‫ݬ‬೟஠ቲ࿸ᒙăਈ᎖ᄰ፿৺ᑇၒ߲ࡼ
ሮᇼቧᇦǈ༿‫ݬ‬ఠ‫ܭ‬9ᒦࡼs2Eiਜ਼s2Fiă
আᆡၒ߲RESETᄋ৙ࣶᒬభ‫߈ܠ‬ၒ߲ᄟୈਜ਼ࣶᒬআᆡި
ဟăਈ᎖RESETၒ߲ਜ਼ިဟᄟୈࡼሮᇼቧᇦ༿‫ݬ‬ఠ‫ܭ‬9ᒦ
ࡼs31iਜ਼s32iă
ᆨࣞ৺ᑇၒ߲OVERT፿౶ᒎာᎧᆨࣞሤਈࡼ৺ᑇăOVERT
ো௣ጙ଀ᆨࣞඡሢਜ਼0૞Ꮠ࣡औ૵਌ఎവ0࣢വ‫ܪ‬ᒔ஠ቲ࿸
ᒙăᏴऔ૵਌खညఎവ0࣢വ৺ᑇဟǈOVERTჄࡀᆐࢅ࢟
ຳǈᆐ೫༹߹Ⴤࡀǈ‫ܘ‬ኍ୓ሤ።ࡼऔ૵਌ఎവ0࣢വ‫ܪ‬ᒔ
ᆡ༹ഃăਈ᎖OVERTၒ߲ᄟୈࡼৎࣶቧᇦ༿‫ݬ‬ఠ‫ܭ‬9ᒦࡼ
s2Giă
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
NBY271420NBY27143
‫ܭ‬7/! ᆨࣞଶ‫ހ‬৺ᑇဧถĂ࢟ഗଶ‫ހ‬৺ᑇဧถĂTNCBMFSU$ဧถጲૺᆨລࢯஂ
REGISTER
ADDRESS
1Bh
4Dh
EEPROM
MEMORY
ADDRESS
BIT RANGE
[0]
Internal Temperature Sensor Faults Enable:
0 = Internal temperature sensor faults disabled
1 = Internal temperature sensor faults enabled
[1]
Remote Temperature Sensor 1 Faults Enable:
0 = Remote temperature sensor 1 faults disabled
1 = Internal temperature sensor 1 faults enabled
[2]
Remote Temperature Sensor 2 Faults Enable:
0 = Remote temperature sensor 2 faults disabled
1 = Remote temperature sensor 2 faults enabled
[3]
Current-Sense Fault Enable:
0 = Current-sense faults disabled
1 = Current-sense faults enabled
[4]
SMBALERT# Enable (ALERT):
0 = SMBALERT# disabled
1 = SMBALERT# enabled
9Bh
CDh
DESCRIPTION
[7:5]
Remote Temperature Sensor 1 Offset Trim:
Offset = 4 × X, where X is the two’s-complement 3-bit temperature code
(1 LSB = 0.5°C). Since X is multiplied by 4, the offset LSB size is 2°C,
allowing a total offset adjustment of ±6°C.
[1:0]
Internal Temperature Sensor Primary Overtemperature Threshold LSB
[3:2]
Internal Temperature Sensor Secondary Overtemperature Threshold LSB
[6:4]
Remote Temperature Sensor 2 Offset Trim:
Offset = 4 × X, where X is the two’s-complement 3-bit temperature code
(1 LSB = 0.5°C). Since X is multiplied by 4, the offset LSB size is 2°C,
allowing a total offset adjustment of ±6°C.
[7]
Not used.
࢟ഗ৺ᑇၒ߲OVERC፿౶ᒎာਭഗ৺ᑇăOVERCஞᎧጙ
଀ਭഗ৺ᑇෝผඡሢᎌਈǈਈ᎖࢟ഗଶ‫ހ‬हࡍ໭ਜ਼ጙ଀
ඡሢࡼሮᇼቧᇦ༿‫ݬ‬ఠ ࢟ഗପ‫ݝ ހ‬ॊăऔ଀ਭഗඡሢ࿸
ᒙᆐၫᔊ೟ǈ፿᎖໚჈ၒ߲ăऔ଀ඡሢથ௥ᎌጙৈభ‫ܠ‬
߈ިဟ)୅ࣶሲ࿸ᒙ‫ݝ‬ॊ*ă
HQJP2ਜ਼HQJP3భ‫߈ܠ‬࿸ᒙᆐ൝૷ၒྜྷĂ၄ࣅআᆡၒྜྷĂ
൝૷ၒ߲૞Ꭷ৺ᑇᄟୈ࣪።ࡼၒ߲ăᎌਈHQJP20HQJP3৖
ถࡼሮᇼቧᇦ༿‫ݬ‬ఠ‫ܭ‬9ᒦࡼs33i–s36iă๼ᒙᆐ৺ᑇۨவ
ၒ߲ဟǈHQJP2ਜ਼HQJP3ᆐࢅ࢟ຳă
ALERTဵ TNCBMFSU$ ରྏࡼ৺ᑇᒦࣥၒ߲ăဧถဟǈ
ALERTဵRESETĂFAULT1ĂFAULT2ĂOVERTĂOVERC
ਜ਼HQJP20HQJP3 )ဧถᆐ৺ᑇၒ߲ဟ*ࡼ൝૷ĐᎧđăखညྀ
ጙ৺ᑇۨவၒ߲ဟǈALERT‫ޘ‬ညۨவၒ߲ǈᒦࣥTNCvt
ᓍ૦஠ቲ৺ᑇ‫އ‬ኯăᓍ૦ኊገૄআNBY271420NBY27143
ᄂࢾࡼTNCvtෘഎ)BSB*ǈ࠭ऎ૝ནᒦࣥ໭ୈࡼ࠭૦࢐ᒍǈ
ሮᇼቧᇦ༿‫ݬ‬ఠ J3D0TNCvtରྏࠈቲ୻ా‫ݝ‬ॊă
______________________________________________________________________________________
21
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬8/! BEDᓞધ଎ࡀ໭
22
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT RANGE
00h
—
[7:0]
01h
—
02h
—
03h
—
04h
—
05h
—
06h
—
07h
—
08h
—
09h
—
0Ah
—
0Bh
—
0Ch
—
0Dh
—
0Eh
—
0Fh
—
10h
—
11h
—
12h
—
13h
—
14h
—
15h
—
16h
—
DESCRIPTION
IN1 ADC Conversion Result (MSB)
[1:0]
IN1 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN2 ADC Conversion Result (MSB)
[1:0]
IN2 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN3 ADC Conversion Result (MSB)
[1:0]
IN3 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN4 ADC Conversion Result (MSB)
[1:0]
IN4 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN5 ADC Conversion Result (MSB)
[1:0]
IN5 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN6 ADC Conversion Result (MSB)
[1:0]
IN6 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN7 ADC Conversion Result (MSB)
[1:0]
IN7 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN8 ADC Conversion Result (MSB)
[1:0]
IN8 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
Internal Temperature Sensor ADC Conversion Result (MSB)
[1:0]
Internal Temperature Sensor ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
Remote Temperature Sensor 1 ADC Conversion Result (MSB)
[1:0]
Remote Temperature Sensor 1 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
Remote Temperature Sensor 2 ADC Conversion Result (MSB)
[1:0]
Remote Temperature Sensor 2 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
Current-Sense ADC Conversion Result
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
REGISTER
ADDRESS
1Dh
1Eh
1Fh
EEPROM
MEMORY
ADDRESS
9Dh
9Eh
9Fh
BIT RANGE
DESCRIPTION
[0]
1 = FAULT1 depends on the secondary undervoltage thresholds of all enabled IN1–IN8.
[1]
1 = FAULT1 depends on the primary overvoltage thresholds of all enabled IN1–IN8.
[2]
1 = FAULT1 depends on the secondary overvoltage thresholds of all enabled IN1–IN8.
[3]
1 = FAULT1 depends on the secondary overtemperature threshold of the internal
temperature sensor.
[4]
1 = FAULT1 depends on the secondary overtemperature threshold of remote
temperature sensor 1.
[5]
1 = FAULT1 depends on the secondary overtemperature threshold of remote
temperature sensor 2.
[6]
1 = FAULT1 depends on the secondary overcurrent threshold.
[7]
Reserved
[0]
1 = FAULT2 depends on the secondary undervoltage thresholds of all enabled IN1–IN8.
[1]
1 = FAULT2 depends on the primary overvoltage thresholds of all enabled IN1–IN8.
[2]
1 = FAULT2 depends on the secondary overvoltage thresholds of all enabled IN1–IN8.
[3]
1 = FAULT2 depends on the secondary overtemperature threshold of the internal
temperature sensor.
[4]
1 = FAULT2 depends on the secondary overtemperature threshold of remote
temperature sensor 1.
[5]
1 = FAULT2 depends on the secondary overtemperature threshold of remote
temperature sensor 2.
[6]
1 = FAULT2 depends on the secondary overcurrent threshold.
[7]
Reserved
[0]
1 = OVERT depends on the primary overtemperature threshold of the internal
temperature sensor.
[1]
1 = OVERT depends on the primary overtemperature threshold of the remote
temperature sensor 1.
[2]
1 = OVERT depends on the primary overtemperature threshold of the remote
temperature sensor 2.
______________________________________________________________________________________
23
NBY271420NBY27143
‫ܭ‬9/! ၒ߲ᄟୈ
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬9/! ၒ߲ᄟୈ)ኚ*
REGISTER
ADDRESS
1Fh
20h
24
EEPROM
MEMORY
ADDRESS
9Fh
BIT RANGE
DESCRIPTION
[3]
1 = OVERT depends on the diode short flag of remote temperature sensor 1. OVERT
latches when the diode is shorted. Clear the latch by writing to r50h.
[4]
1 = OVERT depends on the diode open flag of remote temperature sensor 1. OVERT
latches when the diode is open. Clear the latch by writing to r50h.
[5]
1 = OVERT depends on the diode short flag of remote temperature sensor 2. OVERT
latches when the diode is shorted. Clear the latch by writing to r50h.
[6]
1 = OVERT depends on the diode open flag of remote temperature sensor 2. OVERT
latches when the diode is open. Clear the latch by writing to r50h.
[7]
Reserved
[2:0]
RESET Configuration:
000 = RESET has no dependencies; asserts during boot and boot-up timeout and then
deasserts indefinitely.
001 = RESET depends on the primary undervoltage thresholds at inputs that are
selected by r21h[7:0].
010 = RESET depends on the primary overvoltage thresholds at inputs that are selected
by r21h[7:0].
011 = RESET depends on both the primary undervoltage and overvoltage thresholds at
those inputs that are selected by r21h[7:0].
100 = RESET depends on the primary undervoltage thresholds at inputs that are
selected by r21h[7:0] and the internal temperature sensor primary overtemperature
threshold.
101 = RESET depends on both the primary undervoltage and overvoltage thresholds at
those inputs that are selected by r21h[7:0] and the internal temperature sensor primary
overtemperature threshold.
110 = RESET depends on the primary undervoltage thresholds at inputs that are
selected by r21h[7:0] and each internal/remote temperature sensor primary
overtemperature threshold.
111 = RESET depends on both the primary undervoltage and overvoltage thresholds at
those inputs that are selected by r21h[7:0] and each internal/remote temperature sensor
primary overtemperature threshold.
[5:3]
RESET Timeout:
000 = 25μs
001 = 2.5ms
010 = 10ms
011 = 40ms
100 = 160ms
101 = 640ms
110 = 1280ms
111 = 2560ms
[7:6]
Reserved
A0h
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
REGISTER
ADDRESS
21h
22h
EEPROM
MEMORY
ADDRESS
A1h
BIT RANGE
DESCRIPTION
[0]
1 = RESET depends on IN1 with thresholds defined by r20h[2:0].
[1]
1 = RESET depends on IN2 with thresholds defined by r20h[2:0].
[2]
1 = RESET depends on IN3 with thresholds defined by r20h[2:0].
[3]
1 = RESET depends on IN4 with thresholds defined by r20h[2:0].
[4]
1 = RESET depends on IN5 with thresholds defined by r20h[2:0].
[5]
1 = RESET depends on IN6 with thresholds defined by r20h[2:0].
[6]
1 = RESET depends on IN7 with thresholds defined by r20h[2:0].
[7]
1 = RESET depends on IN8 with thresholds defined by r20h[2:0].
[2:0]
GPIO1 Output Dependencies:
000 = GPIO1 is a digital input that is read from r22h[7].
001 = GPIO1 is a digital manual reset input that asserts RESET when asserted. The state
of GPIO1 is read from r22h[7].
010 = GPIO1 is a digital output that is written to through r22h[6].
011 = GPIO1 is a digital fault output that depends on conditions selected by r23h[6:0].
100 = GPIO1 is a digital output that depends on primary thresholds at the input selected
by r22h[5:3].
101 =GPIO1 is a digital output that depends on primary thresholds at the input selected
by r22h[5:3] and on conditions selected by r23h[6:0].
110 = Reserved
111 = Reserved
[5:3]
GPIO1 Single-Input Primary Threshold Voltage Monitor (r22h[2:0] = 100 or 101 only).
GPIO1 asserts low when any primary threshold of this input is exceeded:
000 = IN1
001 = IN2
010 = IN3
011 = IN4
100 = IN5
101 = IN6
110 = IN7
111 = IN8
A2h
[6]
GPIO1 Output (write to this bit):
1 = GPIO1 is set high if GPIO1 is configured as an output.
0 = GPIO1 is set low if GPIO1 is configured as an output.
[7]
GPIO1 Input State (read from this bit):
1 = Indicates that GPIO1 is high regardless if GPIO1 is set as an output or input.
0 = Indicates that GPIO1 is low regardless if GPIO1 is set as an output or input.
______________________________________________________________________________________
25
NBY271420NBY27143
‫ܭ‬9/! ၒ߲ᄟୈ)ኚ*
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬9/! ၒ߲ᄟୈ)ኚ*
REGISTER
ADDRESS
23h
24h
26
EEPROM
MEMORY
ADDRESS
A3h
BIT RANGE
DESCRIPTION
[0]
1 = GPIO1 depends on the secondary undervoltage thresholds of all enabled IN1–IN8.
[1]
1 = GPIO1 depends on the primary overvoltage thresholds of all enabled IN1–IN8.
[2]
1 = GPIO1 depends on the secondary overvoltage thresholds of all enabled IN1–IN8.
[3]
1 = GPIO1 depends on the secondary overtemperature threshold of the internal
temperature sensor.
[4]
1 = GPIO1 depends on the secondary overtemperature threshold of remote temperature
sensor 1.
[5]
1 = GPIO1 depends on the secondary overtemperature threshold of remote temperature
sensor 2.
[6]
1 = GPIO1 depends on the secondary overcurrent threshold.
[7]
Reserved
[2:0]
GPIO2 Output Dependencies:
000 = GPIO2 is a digital input that is read from r24h[7].
001 = GPIO2 is a digital manual reset input that asserts RESET when asserted. The state
of GPIO2 is read from r24h[7].
010 = GPIO2 is a digital output that is written to through r24h[6].
011 = GPIO2 is a digital fault output that depends on conditions selected by r25h[6:0].
100 = GPIO2 is a digital output that depends on primary thresholds at the input selected
by r24h[5:3].
101 = GPIO2 is a digital output that depends on primary thresholds at the input selected
by r24h[5:3] and on conditions selected by r25h[6:0].
110 = Reserved
111 = Reserved
[5:3]
GPIO2 Single-Input Primary Threshold Voltage Monitor (r24h[2:0] = 100 or 101 only).
GPIO2 asserts low when the primary threshold of this input is exceeded:
000 = IN1
001 = IN2
010 = IN3
011 = IN4
100 = IN5
101 = IN6
110 = IN7
111 = IN8
A4h
[6]
GPIO2 Output (write to this bit):
1 = GPIO2 is set high if GPIO2 is configured as an output.
0 = GPIO2 is set low if GPIO2 is configured as an output.
[7]
GPIO2 Input (read from this bit):
1 = Indicates that GPIO2 is high regardless if GPIO2 is set as an output or input.
0 = Indicates that GPIO2 is low regardless if GPIO2 is set as an output or input.
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
REGISTER
ADDRESS
25h
EEPROM
MEMORY
ADDRESS
BIT RANGE
A5h
DESCRIPTION
[0]
1 = GPIO2 depends on the secondary undervoltage thresholds of all enabled IN1–IN8.
[1]
1 = GPIO2 depends on the primary overvoltage thresholds of all enabled IN1–IN8.
[2]
1 = GPIO2 depends on the secondary overvoltage thresholds of all enabled IN1–IN8.
[3]
1 = GPIO2 depends on the secondary overtemperature threshold of the internal
temperature sensor.
[4]
1 = GPIO2 depends on the secondary overtemperature threshold of remote temperature
sensor 1.
[5]
1 = GPIO2 depends on the secondary overtemperature threshold of remote temperature
sensor 2.
[6]
1 = GPIO2 depends on the secondary overcurrent threshold.
[7]
Reserved
৺ᑇ਌ಯ
NBY271420NBY27143ᄋ৙ࣶᒬభ๼ᒙኡሲǈ፿᎖ଶ‫ހ‬ਜ਼
਌ಯᇹᄻ৺ᑇă৺ᑇඡሢᏴs37i–s5Fiᒦ࿸ᒙǈྙ‫ܭ‬:Ⴥာă
ᄰਭ࿸ᒙs65i–s68iǈభጲႲဟື܎߿ख৺ᑇࡼඡሢǈဧ໚
‫߿્ݙ‬ख৺ᑇۨவǈྙ‫ܭ‬21Ⴥာă৺ᑇ‫ܪ‬ᒔࡔ‫ܭ‬೫ᒎࢾ
ၒྜྷࡼ৺ᑇᓨზăభႲဟ࠭s61i–s64iᒦࣗན໭ୈଶ‫ࡵހ‬
ࡼၒྜྷ৺ᑇǈྙ‫ܭ‬22Ⴥာăሶ‫ܪ‬ᒔ଎ࡀ໭ࡼሤ።ᆡቖĎ2ď
భ༹߹৺ᑇ‫ܪ‬ᒔă
‫ܭ‬:/! ৺ᑇඡሢ
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
26h
A6h
[7:0]
IN1 Primary Undervoltage Threshold
27h
A7h
[7:0]
IN1 Primary Overvoltage Threshold
28h
A8h
[7:0]
IN1 Secondary Undervoltage Threshold
29h
A9h
[7:0]
IN1 Secondary Overvoltage Threshold
2Ah
AAh
[7:0]
IN2 Primary Undervoltage Threshold
DESCRIPTION
2Bh
ABh
[7:0]
IN2 Primary Overvoltage Threshold
2Ch
ACh
[7:0]
IN2 Secondary Undervoltage Threshold
2Dh
ADh
[7:0]
IN2 Secondary Overvoltage Threshold
2Eh
AEh
[7:0]
IN3 Primary Undervoltage Threshold
2Fh
AFh
[7:0]
IN3 Primary Overvoltage Threshold
30h
B0h
[7:0]
IN3 Secondary Undervoltage Threshold
31h
B1h
[7:0]
IN3 Secondary Overvoltage Threshold
32h
B2h
[7:0]
IN4 Primary Undervoltage Threshold
33h
B3h
[7:0]
IN4 Primary Overvoltage Threshold
______________________________________________________________________________________
27
NBY271420NBY27143
‫ܭ‬9/! ၒ߲ᄟୈ)ኚ*
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬:/! ৺ᑇඡሢ)ኚ*
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
34h
B4h
[7:0]
IN4 Secondary Undervoltage Threshold
35h
B5h
[7:0]
IN4 Secondary Overvoltage Threshold
36h
B6h
[7:0]
IN5 Primary Undervoltage Threshold
37h
B7h
[7:0]
IN5 Primary Overvoltage Threshold
38h
B8h
[7:0]
IN5 Secondary Undervoltage Threshold
39h
B9h
[7:0]
IN5 Secondary Overvoltage Threshold
3Ah
BAh
[7:0]
IN6 Primary Undervoltage Threshold
3Bh
BBh
[7:0]
IN6 Primary Overvoltage Threshold
3Ch
BCh
[7:0]
IN6 Secondary Undervoltage Threshold
3Dh
BDh
[7:0]
IN6 Secondary Overvoltage Threshold
3Eh
BEh
[7:0]
IN7 Primary Undervoltage Threshold
3Fh
BFh
[7:0]
IN7 Primary Overvoltage Threshold
40h
C0h
[7:0]
IN7 Secondary Undervoltage Threshold
41h
C1h
[7:0]
IN7 Secondary Overvoltage Threshold
42h
C2h
[7:0]
IN8 Primary Undervoltage Threshold
43h
C3h
[7:0]
IN8 Primary Overvoltage Threshold
44h
C4h
[7:0]
IN8 Secondary Undervoltage Threshold
45h
C5h
[7:0]
IN8 Secondary Overvoltage Threshold
46h
C6h
[7:0]
Internal Temperature Sensor Primary Overtemperature Threshold MSB (2 LSBs are in
r4Dh[1:0]).
47h
C7h
[7:0]
Internal Temperature Sensor Secondary Overtemperature Threshold MSB (2 LSBs are
in r4Dh[3:2]).
48h
C8h
[7:0]
Remote Temperature Sensor 1 Primary Overtemperature Threshold MSB (2 LSBs are
in r4Eh[1:0]).
49h
C9h
[7:0]
Remote Temperature Sensor 1 Secondary Overtemperature Threshold MSB (2 LSBs
are in r4Eh[3:2]).
4Ah
CAh
[7:0]
Remote Temperature Sensor 2 Primary Overtemperature Threshold MSB (2 LSBs are
in r4Eh[5:4]).
4Bh
CBh
[7:0]
Remote Temperature Sensor 2 Secondary Overtemperature Threshold MSB (2 LSBs
are in r4Eh[7:6]).
4Ch
CCh
4Dh
CDh
[7:0]
Current-Sense Secondary Threshold
[1:0]
[3:2]
[6:4]
Internal Temperature Sensor Primary Overtemperature Threshold LSB
Internal Temperature Sensor Secondary Overtemperature Threshold LSB
Remote Temperature Sensor 2, Offset Trim
[7]
4Eh
28
DESCRIPTION
CEh
Not used
[1:0]
Remote Temperature Sensor 1 Primary Overtemperature Threshold LSB
[3:2]
Remote Temperature Sensor 1 Secondary Overtemperature Threshold LSB
[5:3]
Remote Temperature Sensor 2 Primary Overtemperature Threshold LSB
[7:6]
Remote Temperature Sensor 2 Secondary Overtemperature Threshold LSB
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
NBY271420NBY27143
‫ܭ‬21/! ৺ᑇື܎
REGISTER
ADDRESS
54h
EEPROM
MEMORY
ADDRESS
D4h
BIT
RANGE
[0]
1 = Short-circuit detection at remote temperature sensor 1 is masked.
[1]
1 = Open-circuit detection at remote temperature sensor 1 is masked.
[2]
1 = Short-circuit detection at remote temperature sensor 2 is masked.
[3]
1 = Open-circuit detection at remote temperature sensor 2 is masked.
[7:4]
55h
56h
57h
D5h
D6h
D7h
DESCRIPTION
Not used.
[0]
1 = IN1 primary overvoltage and undervoltage faults are masked.
[1]
1 = IN2 primary overvoltage and undervoltage faults are masked.
[2]
1 = IN3 primary overvoltage and undervoltage faults are masked.
[3]
1 = IN4 primary overvoltage and undervoltage faults are masked.
[4]
1 = IN5 primary overvoltage and undervoltage faults are masked.
[5]
1 = IN6 primary overvoltage and undervoltage faults are masked.
[6]
1 = IN7 primary overvoltage and undervoltage faults are masked.
[7]
1 = IN8 primary overvoltage and undervoltage faults are masked.
[0]
1 = IN1 secondary overvoltage and undervoltage faults are masked.
[1]
1 = IN2 secondary overvoltage and undervoltage faults are masked.
[2]
1 = IN3 secondary overvoltage and undervoltage faults are masked.
[3]
1 = IN4 secondary overvoltage and undervoltage faults are masked.
[4]
1 = IN5 secondary overvoltage and undervoltage faults are masked.
[5]
1 = IN6 secondary overvoltage and undervoltage faults are masked.
[6]
1 = IN7 secondary overvoltage and undervoltage faults are masked.
[7]
1 = IN8 secondary overvoltage and undervoltage faults are masked.
[0]
1 = Internal temperature sensor primary overtemperature fault masked.
[1]
1 = Remote temperature sensor 1 primary overtemperature fault masked.
[2]
1 = Remote temperature sensor 2 primary overtemperature fault masked.
[3]
1 = Internal temperature sensor secondary overtemperature fault masked.
[4]
1 = Remote temperature sensor 1 secondary overtemperature fault masked.
[5]
1 = Remote temperature sensor 2 secondary overtemperature fault masked.
[6]
1 = Current-sense primary overcurrent fault masked.
[7]
1 = Current-sense secondary overcurrent fault masked.
______________________________________________________________________________________
29
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬22/! ৺ᑇ‫ܪ‬ᒔ
REGISTER
ADDRESS
50h
EEPROM
MEMORY
ADDRESS
D0h
BIT
RANGE
[0]
1 = Short circuit detected at remote temperature sensor 1.
[1]
1 = Open circuit detected at remote temperature sensor 1.
[2]
1 = Short circuit detected at remote temperature sensor 2.
[3]
1 = Open circuit detected at remote temperature sensor 2.
[7:4]
51h
52h
53h
30
D1h
D2h
D3h
DESCRIPTION
Not used.
[0]
1 = IN1 conversion result exceeds primary overvoltage or undervoltage thresholds.
[1]
1 = IN2 conversion result exceeds primary overvoltage or undervoltage thresholds.
[2]
1 = IN3 conversion result exceeds primary overvoltage or undervoltage thresholds.
[3]
1 = IN4 conversion result exceeds primary overvoltage or undervoltage thresholds.
[4]
1 = IN5 conversion result exceeds primary overvoltage or undervoltage thresholds.
[5]
1 = IN6 conversion result exceeds primary overvoltage or undervoltage thresholds.
[6]
1 = IN7 conversion result exceeds primary overvoltage or undervoltage thresholds.
[7]
1 = IN8 conversion result exceeds primary overvoltage or undervoltage thresholds.
[0]
1 = IN1 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[1]
1 = IN2 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[2]
1 = IN3 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[3]
1 = IN4 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[4]
1 = IN5 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[5]
1 = IN6 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[6]
1 = IN7 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[7]
1 = IN8 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[0]
1 = Internal temperature sensor conversion exceeds its primary overtemperature threshold.
[1]
1 = Remote temperature sensor 1 conversion exceeds its primary overtemperature threshold.
[2]
1 = Remote temperature sensor 2 conversion exceeds its primary overtemperature threshold.
[3]
1 = Internal temperature sensor conversion exceeds its secondary overtemperature threshold.
[4]
1 = Remote temperature sensor 1 conversion exceeds its secondary overtemperature
threshold.
[5]
1 = Remote temperature sensor 2 conversion exceeds its secondary overtemperature
threshold.
[6]
1 = Current-sense conversion exceeds its primary overcurrent threshold.
[7]
1 = Current-sense conversion exceeds its secondary overcurrent threshold.
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
NBY271420NBY27143
‫ܭ‬23/! ৺ᑇ଑ഺᄟୈ
REGISTER
ADDRESS
58h
59h
5Ah
EEPROM
BIT
MEMORY
RANGE
ADDRESS
D8h
D9h
DAh
DESCRIPTION
[0]
1 = Fault log triggered when IN1 is below its primary undervoltage threshold.
[1]
1 = Fault log triggered when IN2 is below its primary undervoltage threshold.
[2]
1 = Fault log triggered when IN3 is below its primary undervoltage threshold.
[3]
1 = Fault log triggered when IN4 is below its primary undervoltage threshold.
[4]
1 = Fault log triggered when IN5 is below its primary undervoltage threshold.
[5]
1 = Fault log triggered when IN6 is below its primary undervoltage threshold.
[6]
1 = Fault log triggered when IN7 is below its primary undervoltage threshold.
[7]
1 = Fault log triggered when IN8 is below its primary undervoltage threshold.
[0]
1 = Fault log triggered when IN1 is above its primary overvoltage threshold.
[1]
1 = Fault log triggered when IN2 is above its primary overvoltage threshold.
[2]
1 = Fault log triggered when IN3 is above its primary overvoltage threshold.
[3]
1 = Fault log triggered when IN4 is above its primary overvoltage threshold.
[4]
1 = Fault log triggered when IN5 is above its primary overvoltage threshold.
[5]
1 = Fault log triggered when IN6 is above its primary overvoltage threshold.
[6]
1 = Fault log triggered when IN7 is above its primary overvoltage threshold.
[7]
1 = Fault log triggered when IN8 is above its primary overvoltage threshold.
[0]
1 = Fault log triggered when current sense is above its primary overcurrent threshold.
[1]
1 = Fault log triggered when internal temperature sensor is above its overtemperature threshold.
[2]
1 = Fault log triggered when remote temperature sensor 1 is above its overtemperature threshold.
[3]
1 = Fault log triggered when remote temperature sensor 2 is above its overtemperature threshold.
[7:4]
Not used.
৺ᑇ଑ഺ
ྙਫ෭ৈᄂࢾࡼၒྜྷඡሢ࣪᎖ᇹᄻ৔ᔫऻ‫ޟ‬ᒮገǈᐌ።
໪ࣅᔈࣅ৺ᑇ଑ഺ৖ถǈ୓৺ᑇቧᇦࠅ႙ࡵFFQSPNăᄰ
ਭs69i–s6Bi࿸ᒙ৉ᄰࡸࡼ৺ᑇ଑ഺᄟୈǈྙ‫ܭ‬23Ⴥာă
࠭FFQSPNᒦࡼs91i–s9FiభࣗནჅ଑ഺࡼ৺ᑇቧᇦǈྙ
‫ܭ‬24Ⴥာăጙࡡ଑ഺ৺ᑇǈ୓Ⴤࡀ৺ᑇ଑ഺǈኊገ୓໚
আᆡઁ‫ݣ‬ถ଑ഺቤࡼ৺ᑇăሶs6Gi\2^ቖĎ2ďభআᆡ৺ᑇ଑
ഺă৺ᑇቧᇦᒦဪᒫ۞౪৺ᑇ‫ܪ‬ᒔ଎ࡀ໭ࡼดྏǈથభ
ᄰਭ࿸ᒙs6Di\8^ဧᒄጐ۞౪BEDᓞધஉਫ଎ࡀ໭ࡼดྏ
)‫ݬ‬୅ࣶሲ࿸ᒙ‫ݝ‬ॊ*ăჅᎌࡀ߼ࡼBEDᓞધஉਫ࣒ဵ9ৈ
NTCă
ࣶሲ࿸ᒙ
‫ܭ‬25೰߲೫ࣶᒬ࿸ᒙኡሲă଎ࡀ໭s6Ciᒦ۞਺໪ࣅިဟ
ਜ਼Ꮠ࣡ᆨࣞଶ‫ࡼހ‬൉݆໭஀ᒏຫൈ࿸ᒙă଎ࡀ໭s6Di\2;1^
࿸ᒙऔ଀ਭഗඡሢިဟǈ૾࠭खညਭഗ৺ᑇࡵ߿खਭഗ
৺ᑇۨவᒄମࡼዓဟăჅᎌ࢟ኹඡሢ௥ᎌೝৈᎅs6Di\6^
࿸ᒙࡼᒣૄኡሲăs6Di\7^ > 2ဟǈ‫ޘ‬ည৺ᑇ଑ഺࡼᄟୈ‫ܘ‬
ኍဵᏴೌኚೝࠨBEDᓞધᒦ৺ᑇᄟୈ࣒߅ೂǈऎऻጙࠨ
ቶ࢐खည৺ᑇǈጲࠥᄋ঱ᐅဉጴᒜă଎ࡀ໭s6Di\8^఼ᒜ
଑ഺ৺ᑇઁဵ॥୓BEDᓞધஉਫࡀ߼ᏴFFQSPNᒦă଎
ࡀ໭ s6Fi ࡀ߼፿ઓᔈࢾፃ๼ᒙ૞ৼୈ‫۾ۈ‬੓ă଎ࡀ໭
s6Gi\1^࿸ᒙFFQSPNਜ਼଎ࡀ໭ᔝࡼჄࡀਜ਼ஊჄă଎ࡀ໭
s6Gi\2^ᒎာဵ॥खည৺ᑇ଑ഺǈ݀୓ሤ።ࡼ৺ᑇቧᇦჄࡀ
ࡵFFQSPNăᏴሶs6Gi\2^ቖĎ2ďᒄ༄ǈ໚჈৺ᑇ଑ഺူୈ
‫୓્ݙ‬ቤࡼ৺ᑇቧᇦቖྜྷ৺ᑇFFQSPNă
______________________________________________________________________________________
31
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬24/! ৺ᑇ଑ഺFFQSPN
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
—
80h
[7:0]
Copy of r51h[7:0] at the time the fault log was triggered.
—
81h
[7:0]
Copy of r52h[7:0] at the time the fault log was triggered.
—
82h
[7:0]
Copy of r53h[7:0] at the time the fault log was triggered.
—
83h
[7:0]
IN1 conversion result at the time the fault log was triggered.
—
84h
[7:0]
IN2 conversion result at the time the fault log was triggered. 8 MSBs only.
—
85h
[7:0]
IN3 conversion result at the time the fault log was triggered. 8 MSBs only.
—
86h
[7:0]
IN4 conversion result at the time the fault log was triggered. 8 MSBs only.
—
87h
[7:0]
IN5 conversion result at the time the fault log was triggered. 8 MSBs only.
—
88h
[7:0]
IN6 conversion result at the time the fault log was triggered. 8 MSBs only.
—
89h
[7:0]
IN7 conversion result at the time the fault log was triggered. 8 MSBs only.
—
8Ah
[7:0]
IN8 conversion result at the time the fault log was triggered. 8 MSBs only.
—
8Bh
[7:0]
Internal temperature sensor conversion result at the time the fault log was triggered.
8 MSBs from 10-bit ADC conversion.
—
8Ch
[7:0]
Remote temperature sensor 1 conversion result at the time the fault log was triggered.
8 MSBs from 10-bit ADC conversion.
—
8Dh
[7:0]
Remote temperature sensor 2 conversion result at the time the fault log was triggered.
8 MSBs from 10-bit ADC conversion.
—
8Eh
[7:0]
Current-sense conversion result at the time the fault log was triggered.
DESCRIPTION
J3D0TNCvtରྏࠈቲ୻ా
NBY271420NBY27143௥ᎌጙৈJ3D0TNCvtରྏࡼ3ሣ)TEB
ਜ਼TDM*ࠈቲ୻ాǈဣሚᎧᓍ૦࿸۸ࡼᄰቧăჅᎌభถࡼ
ᄰቧৃါྙᅄ 6 Ⴥာǈઁኚᐺஂ৊߲೫ᎌਈ࠭૦࢐ᒍਜ਼
TNCBMFSU$ ࡼሮᇼႁීăᅄ 2 ᆐ 3 ሣ୻ాဟኔᅄǈJ 3 D
ਜ਼TNCvt቏ፇਜ਼ၣᎫ༿‫ݬ‬ఠJ 3 Dᔐሣ3/2ਜ਼ᇹᄻ਌ಯᔐሣ
)TNCvt* 3/1ਖपăNBY271420NBY27143ᑽߒᔢ঱511lI{
ࡼ3ሣᄰቧႥൈǈTEBਜ਼TDMኊገᅪ‫ݝ‬࿟౯࢟ᔜă
࠭૦࢐ᒍ
࠭૦࢐ᒍၒྜྷ)B1ਜ਼B2*ॊܰభପ‫ހ‬4ᒬ‫ݙ‬ᄴᓨზǈᏤ኏Ᏼ
ᄴጙࠈቲᔐሣ࿟ਂ୻:ৈሤᄴ࿸۸ăB1ਜ਼B2୻HOEĂECQ
૞ኞహ)O/D/*ăჅᎌభถࡼ8ᆡ࢐ᒍၒྜྷೌ୻ૺ࣪።ࡼࠈ
ቲᔐሣ࢐ᒍྙ‫ܭ‬26Ⴥာă
32
TNCBMFSU$
TNCBMFSU$ဵTNCvtਖपএഺBᒦࢾፃࡼጙৈభኡᒦࣥ
ቧ੓ăNBY271420NBY27143୓ၒ߲ALERTᔫᆐᒦࣥቧ੓ă
ALERTဧถဟǈྙਫFAULT1ĂFAULT2ĂRESETĂOVERT
૞OVERCᒦࡼྀጙৈ‫߿ۻ‬खۨவǈALERTጐ୓߿खۨவă
ࠥᅪǈྙਫHQJP`๼ᒙᆐ৺ᑇၒ߲ǈᐌHQJP`ࠀ᎖৺ᑇۨ
வᓨზဟǈALERTጐ୓߿खۨவăჅᎌ৺ᑇஊ߹)૾Ⴥᎌ
৺ᑇၒ߲ᆐ঱࢟ຳ*ઁǈஊ߹ALERTࡼۨவᓨზă
ᄰ‫ޟ‬ALERTೌ୻ࡵᇹᄻᒦࡼჅᎌ໚჈TNCBMFSU$ധ૵ఎ
വቧ੓ǈᎧTNCBMFSU$ၒ߲৩߅Đሣ૞đ൝૷ăࡩᓍ૦‫ۻ‬
TNCBMFSU$ၒྜྷቧ੓ᒦࣥဟǈᓍ૦ᄫᒏ૞ᅲ߅ࡩ༄ᔐሣࠅ
ၒǈ݀ሶᔐሣख߲ۨவሰ።࢐ᒍ)BSB*ă୓TNCBMFSU$
ቧ੓౯ࢅࡼ࠭૦።ࡊBSBǈ݀୓໚࢐ᒍᄋ৙৊ᔐሣǈဧᓍ
૦૝ᇨ෾ৈ࠭૦ࡴᒘ೫ᒦࣥă8ᆡBSBဵĎ1112211ďǈS0W
ᆡᆐᇄਈሲă
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
S
ADDRESS
7 bits
Receive Byte Format
R/W ACK
0
COMMAND
ACK
P
ADDRESS
S
8 bits
Slave Address: Address
of the slave on the serial
interface bus.
ADDRESS
7 bits
R/W ACK
7 bits
DATA
1
NACK
P
8 bits
Slave Address: Address
of the slave on the serial
interface bus.
Command Byte: Presets the
internal address pointer or
represents a command.
Write Byte Format
S
NBY271420NBY27143
Send Byte Format
Data Byte: Data is read from
the location pointed to by the
internal address pointer.
SMBALERT#
R/W ACK
0
COMMAND
ACK
DATA
8 bits
Slave Address: Address
of the slave on the serial
interface bus.
ACK
P
S
8 bits
Command Byte:
Sets the internal
address pointer.
ADDRESS
R/W ACK
DATA
0001100
D.C.
8 bits
Alert Response Address:
Only the device that
interrupted the master
responds to this address.
Data Byte: Data is written to
the locations set by the
internal address pointer.
NACK
P
Slave Address: Slave places
its own address on the
serial bus.
Read Byte Format
S
SLAVE
ADDRESS
7 bits
R/W ACK
0
COMMAND
ACK
SR
SLAVE
ADDRESS
8 bits
Slave Address: Address
of the slave on the serial
interface bus.
7 bits
R/W ACK
DATA BYTE NACK
P
8 bits
1
Data Byte: Data is read from
the locations set by the
internal address pointer.
Command Byte:
Sets the internal
address pointer.
Block Write Format
S
ADDRESS
7 bits
R/W ACK
0
COMMAND
ACK
BYTE
COUNT = N
8 bits
Slave Address: Address
of the slave on the
serial interface bus.
ACK DATA BYTE 1 ACK DATA BYTE … ACK DATA BYTE N ACK
8 bits
8 bits
Command Byte:
FAh
8 bits
Slave to master
P
8 bits
Master to slave
Data Byte: Data is written to the locations
set by the internal address pointer.
Block Read Format
S
ADDRESS
7 bits
R/W ACK
0
COMMAND
8 bits
Slave Address: Address
of the slave on the
serial interface bus.
S = START Condition
P = STOP Condition
Sr = Repeated START Condition
D.C. = Don’t Care
Command Byte:
FBh
ACK
SR
ADDRESS
7 bits
R/W ACK
BYTE
COUNT = N
1
Slave Address: Address
of the slave on the
serial interface bus.
8 bits
ACK DATA BYTE 1 ACK DATA BYTE … ACK DATA BYTE N NACK
8 bits
8 bits
P
8 bits
Data Byte: Data is read from the locations
set by the internal address pointer.
ACK = Acknowledge, SDA pulled low during rising edge of SCL.
NACK = Not acknowledge, SDA left high during rising edge of SCL.
All data is clocked in/out of the device on rising edges of SCL.
= SDA transitions from high to low during period of SCL.
= SDA transitions from low to high during period of SCL.
ᅄ6/! ᄰቧৃါ
______________________________________________________________________________________
33
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬25/! ࣶሲ࿸ᒙ
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
[3:0]
5Bh
DBh
[6:4]
[7]
[1:0]
5Ch
DCh
[2]
[4:3]
[5]
34
DESCRIPTION
Postboot Timeout (all faults and outputs masked):
0h = No timeout
1h = 0.974ms
2h = 2.030ms
3h = 3.978ms
4h = 8.038ms
5h = 15.99ms
6h = 31.99ms
7h = 63.99ms
8h = 128ms
9h = 256.0ms
Ah = 512ms
Bh = 1024ms
Ch = 2048ms
Dh = 4096ms
Eh = 8192ms
Fh = 16384ms
Temperature Sensor Lowpass Filter Cutoff:
000 = No filter
001 = 2.53Hz
010 = 5.06Hz
011 = 10.1Hz
100 = 20.2Hz
101 = 40.5Hz
110 = 81Hz
111 = 162Hz
Not used.
Overcurrent Secondary Threshold Timeout:
00 = 50μs
01 = 3.98ms
10 = 16ms
11 = 64ms
Latch OVERC:
0 = No latch
1 = Latched after assertion
Not used.
Threshold Hysteresis (all thresholds):
0 = 0.78%
1 = 1.17%
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
REGISTER
ADDRESS
5Ch
5Eh
EEPROM
MEMORY
ADDRESS
BIT
RANGE
[6]
Consecutive Faults on Primary Thresholds:
0 = Fault occurs after primary threshold is exceeded one time (normal operation).
1 = Fault occurs after primary threshold is exceeded twice.
[7]
Fault Log ADC Conversions Option:
0 = When a fault log is triggered, only fault flags are saved in EEPROM.
1 = When a fault log is triggered, fault flags and ADC conversion results (8 MSBs) are
saved in EEPROM.
DCh
DEh
[7:0]
[0]
5Fh
DESCRIPTION
DFh
[1]
[7:2]
Firmware Version. 8 bits of memory for user-defined firmware version number.
Configuration Lock:
Write a ‘1’ to r5Fh[0] to toggle this register bit.
0 = Register and EEPROM configuration unlocked.
1 = Register and EEPROM configuration locked.
Fault Log EEPROM Lock Flag (set automatically after fault log is triggered):
Write a ‘1’ to r5Fh[1] to toggle this register bit.
0 = EEPROM is not locked. A triggered fault log stores fault information to EEPROM.
1 = A fault log has been triggered. Write a ‘1’ to this bit to clear the flag and allow a
new fault log to be triggered.
Not used.
KUBHࠈቲ୻ా
‫ܭ‬26/! J3D0TNCvt࠭૦࢐ᒍ࿸ᒙ
A1
A0
BUS ADDRESS
GND
GND
0011000
GND
N.C.
0011001
GND
DBP
0011010
N.C.
GND
0101001
N.C.
N.C.
0101010
N.C.
DBP
0101011
DBP
GND
1001100
DBP
N.C.
1001111
DBP
DBP
1001110
ᄂၐෘഎ
NBY271420NBY27143 ᄋ৙ྟୈᒮ໪ਜ਼৺ᑇ଑ഺෘഎă
ྟୈᒮ໪፿᎖߱ဪછQPSဟࡼ࿟࢟ၿኔă໪ࣅ໐ମǈ୓
FFQSPN๼ᒙၫ௣আᒜࡵ଎ࡀ໭ăᄰਭྟୈᒮ໪ဟǈ‫ږ‬ᑍ
ᔊஂख႙ৃါख႙1yGDăྟୈ߱ဪછ৺ᑇ଑ഺᎧ፮ୈ߱
ဪછ৺ᑇ଑ഺᏴ৖ถ࿟ሤᄴă଑ഺ৺ᑇဟǈBED଎ࡀ໭
ਜ਼৺ᑇቧᇦ଑ഺࡵFFQSPNăᆐ೫߿खྟୈ߱ဪછࡼ৺ᑇ
଑ഺǈ‫ږ‬ᑍᔊஂख႙ৃါख႙1yGEă
߹೫J 3D0TNCvtରྏࠈቲ୻ాᅪǈNBY271420NBY27143
થ۞਺ጙৈJFFF ® 225:/2ରྏࡼKUBHాăೝᒬ୻ా࣒భ
፿᎖षᆰด‫ࡀ߼ݝ‬໭ǗࡣဵǈඛࠨᒑᏤ኏‫ݧ‬፿ጙᒬ୻ాă
NBY271420NBY27143ࡼჅᎌၫᔊJ0P࣒ᑽߒJFFF 225:/2‫ܟ‬
ஏྸහǈ݀۞౪࢜ቯࡼKUBH‫ܟ‬ஏྸහ࡝Ꮔ)Ꮴ኏ၒྜྷ0ၒ߲
ൔኯ૞ᄰਭ‫ܪ‬ᓰKUBHෘഎ༓ᒜᆐ঱0ࢅ࢟ຳ*ăNBY271420
NBY27143 ਺ᎌ KUBH ਖपᒦᆚᄋૺࡼএଝ KUBH ᒎഎਜ਼
এଝࣤ଎ࡀ໭ǈ፿᎖षᆰด‫߼ࡀݝ‬໭ăএଝᒎഎᆐǖ
MPBE BEESFTTĂXSJUFĂSFBEĂSFCPPUĂTBWFਜ਼
VTFSDPEFăএଝࣤ଎ࡀ໭ᆐǖࡀ߼໭࢐ᒍĂࡀ߼໭ቖ
‫ݷ‬ᔫĂࡀ߼໭ࣗ‫ݷ‬ᔫĂ፿ઓ‫ܠ‬൩ၫ௣ǈKUBH୻ాࡼऱౖ
ᅄྙᅄ7Ⴥာă
‫ހ‬၂षᆰ࣡ా)UBQ*఼ᒜ໭ࡼᓨზ૦
UBQ఼ᒜ໭ဵጙৈᎌሢᓨზ૦ǈᏴUDL࿟ဍዘሰ።UNTࡼ
൝૷࢟ຳăᎌሢᓨზ૦ࡼౖᅄྙᅄ8Ⴥာă
Uftu.Mphjd.Sftfuǖ࿟࢟ઁǈUBQ఼ᒜ໭஠ྜྷuftu.mphjd.
sftfuᓨზăJEDPEFෘഎᆡ᎖ᒎഎ଎ࡀ໭ǈ໭ୈࡼჅᎌᇹ
ᄻ൝૷৔ᔫᑵ‫ޟ‬ă
JFFFဵගਪ࢟໮ਜ਼࢟ᔇ৔߈နኧ્ࡼᓖ‫ॲݿ‬ᇗ‫ܪ‬ᒔă
______________________________________________________________________________________
35
NBY271420NBY27143
‫ܭ‬25/! ࣶሲ࿸ᒙ)ኚ*
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
REGISTERS
AND EEPROM
01101
01100
MEMORY WRITE REGISTER
[LENGTH = 8 BITS]
01010
MEMORY READ REGISTER
[LENGTH = 8 BITS]
01001
MEMORY ADDRESS REGISTER
[LENGTH = 8 BITS]
01000
BOUNDARY SCAN REGISTER
[LENGTH = 198 BITS]
00001
00010
USER CODE REGISTER
[LENGTH = 32 BITS]
00100
IDENTIFICATION REGISTER
[LENGTH = 32 BITS]
00000
BYPASS REGISTER
[LENGTH = 1 BIT]
11111
MUX 1
COMMAND
DECODER
01101
01100
SAVE
REBOOT
VDBP
INSTRUCTION REGISTER
[LENGTH = 5 BITS]
RPU
MUX 2
TDI
TMS
TCK
TDO
TEST ACCESS PORT
(TAP) CONTROLLER
ᅄ7/! KUBHऱౖᅄ
Svo.Uftu0JemfǖSvo.uftu0jemfဵྸහ‫ݷ‬ᔫᒄମ૞ᄂࢾ‫ހ‬၂໐
ମࡼᒦମᓨზăকᓨზሆᒎഎ଎ࡀ໭ਜ਼‫ހ‬၂ၫ௣଎ࡀ໭
ۣߒహሔă
Tfmfdu.ES.TdboǖჅᎌ‫ހ‬၂ၫ௣଎ࡀ໭ۣߒ໚Ꮗሌᓨზă
ྙਫUNTᆐࢅ࢟ຳǈᏴUDLࡼ࿟ဍዘ఼ᒜ໭஠ྜྷdbquvsf.
ESᓨზǈ݀໪ࣅྸහ߈ኔǗྙਫUNTᆐ঱࢟ຳǈᏴUDL
ࡼ࿟ဍዘ఼ᒜ໭஠ྜྷtfmfdu.JS.tdboᓨზă
Dbquvsf.ESǖᏴdbquvsf.ESᓨზሆǈᄰਭࡩ༄ᒎഎ୓ၫ௣
݀ቲଝᏲࡵჅኡᐋࡼ‫ހ‬၂ၫ௣଎ࡀ໭ăྙਫᒎഎ‫ࢯݙ‬፿
݀ቲঌᏲ૞Ⴥኡᐋࡼ‫ހ‬၂ၫ௣଎ࡀ໭‫ݙ‬ᑽߒ݀ቲঌᏲǈ
ᐌ‫ހ‬၂ၫ௣଎ࡀ໭ۣߒࡩ༄ၫᒋăྙਫ UNT ᆐࢅ࢟ຳǈ
ᏴUDLࡼ࿟ဍዘ఼ᒜ໭஠ྜྷtijgu.ESᓨზǗྙਫUNTᆐ঱
࢟ຳǈ఼ᒜ໭஠ྜྷfyju2.ESᓨზă
36
Tijgu.ESǖTijgu.ESᓨზሆǈࡩ༄ᒎഎኡᐋࡼ‫ހ‬၂ၫ௣଎
ࡀ໭ೌ୻ᏴUEJਜ਼UEPᒄମǈUNTᆐࢅ࢟ຳဟǈᏴඛৈ
UDLࡼ࿟ဍዘ୓ၫ௣ᓆࠨጤᒗࠈቲၒ߲࣡ăྙਫUNTᆐ঱
࢟ຳǈᏴUDLࡼ࿟ဍዘ఼ᒜ໭஠ྜྷfyju2.ESᓨზă
Fyju2.ESǖকᓨზሆǈྙਫUNTᆐ঱࢟ຳǈᏴUDLࡼ࿟
ဍዘ୓ဧ఼ᒜ໭ࠀ᎖vqebuf.ESᓨზǗྙਫUNTᆐࢅ࢟ຳǈ
ᏴUDLࡼ࿟ဍዘ୓ဧ఼ᒜ໭஠ྜྷqbvtf.ESᓨზă
Qbvtf.ESǖকᓨზሆǈ‫ހ‬၂ၫ௣଎ࡀ໭ᄫᒏख႙ၫ௣ă
Ⴥᎌ‫ހ‬၂ၫ௣଎ࡀ໭ۣߒᏇᎌᓨზăྙਫUNTᆐࢅ࢟ຳ
఼ᒜ໭୓ۣߒকᓨზǗྙਫUNTᆐ঱࢟ຳǈᏴUDLࡼ࿟
ဍዘ఼ᒜ໭୓஠ྜྷfyju3.ESᓨზă
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
NBY271420NBY27143
1
TEST-LOGIC-RESET
0
0
RUN-TEST/IDLE
1
SELECT-DR-SCAN
1
SELECT-IR-SCAN
0
1
0
1
CAPTURE-DR
CAPTURE-IR
0
0
SHIFT-DR
1
1
EXIT1-DR
1
EXIT1-IR
0
0
PAUSE-DR
PAUSE-IR
0
1
0
1
0
EXIT2-DR
EXIT2-IR
1
1
UPDATE-DR
1
0
SHIFT-IR
0
1
0
1
UPDATE-IR
0
1
0
ᅄ8/! UBQ఼ᒜ໭ᓨზᅄ
Fyju3.ESǖকᓨზሆǈUNTᆐ঱࢟ຳဟǈᏴUDL࿟ဍዘ
఼ᒜ໭஠ྜྷvqebuf.ESᓨზǗUNTᆐࢅ࢟ຳဟǈᏴUDL࿟
ဍዘ఼ᒜ໭஠ྜྷtijgu.ESᓨზă
Vqebuf.ESǖকᓨზሆǈᏴUDLሆଢ଼ዘǈ୓ၫ௣࠭‫ހ‬၂
ၫ௣଎ࡀ໭ࡼጤᆡ଎ࡀ໭Ⴤࡀࡵၒ߲ǈᑚዹభ‫ܜ‬඾݀ቲ
ၒ߲ᎅ᎖ጤᆡ଎ࡀ໭ดྏࡼখ‫ܤ‬ऎখ‫ܤ‬ăྙਫUNTᆐࢅ
࢟ຳǈᏴUDL࿟ဍዘ఼ᒜ໭ૄࡵsvo.uftu0jemfᓨზǗྙਫ
UNTᆐ঱࢟ຳǈ఼ᒜ໭ᐌ஠ྜྷtfmfdu.ES.tdboᓨზă
Tfmfdu.JS.TdboǖকᓨზሆჅᎌ‫ހ‬၂ၫ௣଎ࡀ໭ۣߒᏇᓨ
ზǈᒎഎ଎ࡀ໭ۣߒ‫ܤݙ‬ăUNTᆐࢅ࢟ຳဟǈᏴUDL࿟ဍ
ዘ఼ᒜ໭஠ྜྷdbquvsf.JSᓨზăUNTᆐ঱࢟ຳဟǈᏴUDL
࿟ဍዘ఼ᒜ໭ऩૄuftu.mphjd.sftfuᓨზă
Dbquvsf.JSǖಽ፿dbquvsf.JSᓨზభጲ୓ጤᆡ଎ࡀ໭ࡼၫᒋ
ᓤᏲࡵᒎഎ଎ࡀ໭ǈᏴUDL࿟ဍዘᏲྜྷăUNTᆐ঱࢟ຳ
ဟǈᏴUDL࿟ဍዘ఼ᒜ໭஠ྜྷfyju2.JSᓨზăUNTᆐࢅ࢟
ຳဟǈᏴUDL࿟ဍዘ఼ᒜ໭஠ྜྷtijgu.JSᓨზă
Tijgu.JSǖࠥᓨზሆǈᒎഎ଎ࡀ໭ᒦࡼጤᆡ଎ࡀ໭ೌ୻Ᏼ
UEJਜ਼UEPᒄମǈUNTᆐࢅ࢟ຳဟǈᏴඛৈUDL࿟ဍዘ୓
ၫ௣ሶUEPࡼࠈቲၒ߲࣡ጞࠨጤࣅăᒎഎ଎ࡀ໭ࡼ݀ቲ
ၒ߲ਜ਼Ⴥᎌ‫ހ‬၂ၫ௣଎ࡀ໭ۣ྆ߒᏇᓨზăUNTᆐ঱࢟
ຳဟǈᏴUDL࿟ဍዘ఼ᒜ໭஠ྜྷfyju2.JSᓨზăUNTᆐࢅ
࢟ຳဟǈᏴUDL࿟ဍዘ఼ᒜ໭஠ྜྷtijgu.JSᓨზǈ୓ၫ௣
ᄰਭᒎഎ଎ࡀ໭ጤࣅጙࠨă
______________________________________________________________________________________
37
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
Fyju.JSǖUNT ᆐࢅ࢟ຳဟǈᏴ UDL ࿟ဍዘ఼ᒜ໭஠ྜྷ
qbvtf.JSᓨზǗUNTᆐ঱࢟ຳဟǈᏴUDL࿟ဍዘ఼ᒜ໭஠
ྜྷvqebuf.JSᓨზă
Qbvtf.JSǖকᓨზሆǈጤᆡ଎ࡀ໭ࡼጤᆡ‫ݷ‬ᔫ೹ဟᒦࣥă
UNT ᆐ঱࢟ຳဟǈᏴ UDL ࿟ဍዘ఼ᒜ໭஠ྜྷ fyju3.JS ᓨ
ზǗྙਫ UNT ᆐࢅ࢟ຳǈᏴ UDL ࿟ဍዘ఼ᒜ໭྆ࠀ᎖
qbvtf.JSᓨზă
Fyju3.JSǖUNTᆐ঱࢟ຳဟǈᏴUDL࿟ဍዘ఼ᒜ໭ࠀ᎖
vqebuf.JSᓨზăকᓨზሆǈྙਫUNTᆐࢅ࢟ຳǈᏴUDL࿟
ဍዘ఼ᒜ໭ऩૄtijgu.JSᓨზă
Vqebuf.JSǖࡩ఼ᒜ໭஠ྜྷকᓨზဟǈጯጤྜྷᒎഎጤᆡ଎
ࡀ໭ࡼෘഎᏴUDLሆଢ଼ዘჄࡀࡵᒎഎ଎ࡀ໭ࡼ݀ቲၒ߲ă
ጙࡡჄࡀǈকᒎഎ୓߅ᆐࡩ༄ᒎෘഎăUNTᆐࢅ࢟ຳဟǈ
ᏴUDLࡼ࿟ဍዘ఼ᒜ໭ࠀ᎖svo.uftu0jemfᓨზǗUNTᆐ঱࢟
ຳဟ఼ᒜ໭஠ྜྷtfmfdu.ES.tdboᓨზă
ᒎഎ଎ࡀ໭
ᒎഎ଎ࡀ໭۞਺ጤᆡ଎ࡀ໭ਜ਼Ⴤࡀࡼ݀ቲၒ߲ǈ‫ࣞޠ‬ᆐ6
ᆡăࡩUBQ఼ᒜ໭஠ྜྷtijgu.JSᓨზဟǈᒎഎጤᆡ଎ࡀ໭ೌ
୻ᏴUEJਜ਼UEPᒄମăᏴtijgu.JSᓨზሆǈUNTᆐࢅ࢟ຳဟǈ
ᏴUDL࿟ဍዘ୓ၫ௣࠭UEPᓆᆡࠈቲၒ߲ăᏴfyju2.JSᓨ
ზ૞fyju3.JSᓨზሆǈUNTᆐ঱࢟ຳဟǈᏴUDL࿟ဍዘ఼
ᒜ໭஠ྜྷvqebuf.JSᓨზăᄴዹᏴUDLሆଢ଼ዘ୓ᒎഎጤᆡ଎
ࡀ໭ࡼၫ௣Ⴤࡀࡵᒎഎ଎ࡀ໭ࡼ݀ቲၒ߲࣡ăNBY271420
NBY27143Ⴥᑽߒࡼᒎഎૺሤ።ࡼऔ஠ᒜࡔ൩ྙ‫ܭ‬27Ⴥ೰ă
TBNQMF0QSFMPBEǖTBNQMF0QSFMPBEဵJFFF! 225:/2
቏ፇࡼ༓ᒜᒎഎǈᑽߒೝᒬ৖ถăಽ፿dbquvsf.ESᓨზǈ
፿‫ܟ‬ஏྸහ‫ހ‬၂ၫ௣଎ࡀ໭࣪໭ୈࡼၫᔊJ0P஠ቲ‫ݧ‬ዹǈ
ᇄኊᒦࣥ໭ୈࡼᑵ‫ޟ‬৔ᔫăಽ፿tijgu.ESᓨზǈTBNQMF0
QSFMPBEથᏤ኏໭ୈᄰਭUEJ୓ၫ௣ጤྜྷ‫ܟ‬ஏྸහ‫ހ‬၂
ၫ௣଎ࡀ໭ă
CZQBTTǖࡩCZQBTTᒎഎჄࡀᏴᒎഎ଎ࡀ໭ဟǈUEJᄰ
ਭ2ᆡ๬വ‫ހ‬၂ၫ௣଎ࡀ໭ೌ୻ᒗUEPă࠭ऎᏤ኏ၫ௣ᎅ
EUEJࠅ࢕ᒗUEPǈ‫્ݙ‬፬ሰ໭ୈࡼᑵ‫ޟ‬৔ᔫă
FYUFTUǖকᒎഎᏤ኏‫ހ‬၂໭ୈࡼჅᎌด‫୻ೌݝ‬ăࡩ
FYUFTUᒎഎჄࡀᏴᒎഎ଎ࡀ໭ဟǈ୓ᒊቲሆ೰‫ݷ‬ᔫǖጙ
ࡡᄰਭvqebuf.JSᓨზဧถǈᐌདࣅჅᎌၫᔊၒ߲ࡼ݀ቲ
ၒ߲ǈ‫ܟ‬ஏྸහ‫ހ‬၂ၫ௣଎ࡀ໭୻Ᏼ UEJ ਜ਼ UEP ᒄମă
Dbquvsf.ES୓Ⴥᎌၫᔊၒྜྷ‫ݧ‬ዹࡵ‫ܟ‬ஏྸහ‫ހ‬၂ၫ௣଎
ࡀ໭ă
JEDPEFǖࡩJEDPEFᒎഎჄࡀᏴ݀ቲᒎഎ଎ࡀ໭ဟǈኡ
ᐋဤܰ‫ހ‬၂ၫ௣଎ࡀ໭ă໭ୈဤܰ൩ᏴUDL࿟ဍዘᏲྜྷ
ဤܰ‫ހ‬၂ၫ௣଎ࡀ໭ǈႲઁ஠ྜྷdbquvsf.ESᓨზă፿tijgu.
ESᓨზ୓ဤܰ൩ᄰਭUEPࠈቲጤ߲ăᏴuftu.mphjd.sftfuᓨ
ზሆǈ༓ᒜဤܰ൩஠ྜྷᒎഎ଎ࡀ໭ăJE൩ࡼMTCᆡဪᒫᆐ
2ǈႲઁ22ᆡဵᒜᐆ࿜ࡼKFEFD൩ǈ཭ઁဵ27ᆡ໭ୈJEǈ
ᔢ঱5ᆡဵ໭ୈ‫۾ۈ‬੓ǈྙ‫ܭ‬28Ⴥာă
‫ܭ‬27/! KUBHᒎഎૹ
38
INSTRUCTION
BINARY CODE
BYPASS
11111
SELECTED REGISTER/ACTION
Bypass
IDCODE
00000
Identification
SAMPLE/PRELOAD
00001
Boundary scan
EXTEST
00010
Boundary scan
USERCODE
00100
User-code data
LOAD ADDRESS
01000
Memory address
READ
01001
Memory read
WRITE
01010
Memory write
REBOOT
01100
Resets the device
SAVE
01101
Stores current fault information in EEPROM
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
MSB
LSB
Version (4 bits)
Device ID (16 bits)
Manufacturer ID (11 bits)
Fixed value (1 bit)
0000
0000000000000001
00011001011
1
TBWFǖ‫ܪ‬ᓰJFFF 225:/2ᒎഎૹࡼ౫ᐱ‫ݝ‬ॊǈ፿౶໪ࣅ৺
ᑇ଑ഺăࡩTBWFᒎഎჄࡀࡵᒎഎ଎ࡀ໭ဟǈNBY271420
NBY27143୓৺ᑇቧᇦ࠭଎ࡀ໭আᒜࡵFFQSPNă
‫ܭ‬29/! 43ᆡ፿ઓ‫ܠ‬൩ၫ௣
MSB
D.C. (don’t cares)
I2C/SMBus
Slave Address
User identification
(firmware version)
00000000000000000
See Table 15
r5Eh[7:0] contents
VTFSDPEFǖࡩVTFSDPEFᒎഎჄࡀᏴ݀ቲᒎഎ଎ࡀ໭
ဟǈኡᐋ፿ઓ‫ܠ‬൩ၫ௣଎ࡀ໭ă໭ୈࡼ፿ઓ‫ܠ‬൩ᏴUDL
࿟ဍዘჄࡀࡵ፿ઓ‫ܠ‬൩଎ࡀ໭ǈႲઁ஠ྜྷdbquvsf.ESᓨზă
፿tijgu.ESᓨზ୓፿ઓ‫ܠ‬൩ࠈቲጤ߲UEPǈྙ‫ܭ‬29Ⴥာă
MPBE! BEESFTTǖ‫ܪ‬ᓰJFFF 225:/2ᒎഎૹࡼ౫ᐱ‫ݝ‬ॊǈ
ᑽߒ NBY271420NBY27143 ࡼࡀ߼໭षᆰăࡩ MPBE
BEESFTTᒎഎჄࡀᏴᒎഎ଎ࡀ໭ဟǈᏴtijgu.ESᓨზሆ
UEJᄰਭ9ᆡࡀ߼໭࢐ᒍ‫ހ‬၂ၫ௣଎ࡀ໭ೌ୻ᒗUEPă
SFBEǖ‫ܪ‬ᓰ JFFF 225:/2 ᒎഎૹࡼ౫ᐱ‫ݝ‬ॊǈᑽߒ
NBY271420NBY27143ࡼࡀ߼໭षᆰăࡩSFBEᒎഎჄࡀ
Ᏼᒎഎ଎ࡀ໭ဟǈᏴtijgu.ESᓨზሆUEJᄰਭ9ᆡࡀ߼໭ࣗ
‫ހ‬၂ၫ௣଎ࡀ໭ೌ୻ᒗUEPă
X S J U F ǖ ‫ܪ‬ᓰ JFFF 225:/2 ᒎഎૹࡼ౫ᐱ‫ݝ‬ॊǈᑽߒ
NBY271420NBY27143ࡼࡀ߼໭षᆰăࡩXSJUFᒎഎჄࡀ
Ᏼᒎഎ଎ࡀ໭ဟǈᏴtijgu.ESᓨზሆUEJᄰਭ9ᆡࡀ߼໭ቖ
‫ހ‬၂ၫ௣଎ࡀ໭ೌ୻ᒗUEPă
SFCPPUǖ‫ܪ‬ᓰJFFF 225:/2ᒎഎૹࡼ౫ᐱ‫ݝ‬ॊǈ፿౶໪
ࣅNBY271420NBY27143ࡼྟୈ఼ᒜআᆡăࡩSFCPPUᒎ
എჄࡀࡵᒎഎ଎ࡀ໭ဟǈNBY271420NBY27143আᆡ݀ೂ
૾ఎဪ໪ࣅ߈ኔă
‫ܟ‬ஏྸහ
‫ܟ‬ஏྸහ৖ถᏤ኏षᆰNBY271420NBY27143ࡼჅᎌၫᔊ
J0PăྙਫTBNQMF0QSFMPBE૞FYUFTUᒎഎ‫ۻ‬ଝᏲࡵᒎ
എ଎ࡀ໭ǈUEJᄰਭ2:9ᆡ‫ܟ‬ஏྸහ଎ࡀ໭ೌ୻ᒗUEPă
ඛৈၫᔊJ0P፛୭࣪።‫ܟ‬ஏྸහ଎ࡀ໭ࡼ2ᆡ)B1ਜ਼B2፛୭
࣪።3ᆡ*ă໚჈‫ܟ‬ஏྸහᆡۣഔǈ݀ଝᏲᆐ1ă
ᒊቲTBNQMF0QSFMPBEᒎഎဟǈၫᔊၒ߲ࡼࡩ༄ᓨზჄ
ࡀᒗ‫ܟ‬ஏྸහ଎ࡀ໭ǈ݀ᄰਭUEPጤ߲ăᒊቲকᒎഎဟ
ᇄኊᒦࣥ໭ୈࡼᑵ‫ޟ‬৔ᔫăᒊቲFYUFTUᒎഎဟǈ‫ܟ‬ஏྸ
හ଎ࡀ໭৉ᆡནࡔJ0P፛୭ࡼ৖ถǖ‫ܟ‬ஏྸහ଎ࡀ໭৉ᆡ
ࡼᒋन፯೫࣪።ࡼၒ߲ᓨზă
‫ܭ‬2:೰߲೫‫ܟ‬ஏྸහ଎ࡀ໭৉ᆡࡼ৖ถăᎅ᎖J3D࢐ᒍኡ
ᐋ፛୭௥ᎌ4ᒬభถࡼᓨზǈፐࠥǈኊገ3ৈ‫ܟ‬ஏྸහ଎
ࡀ໭ᆡ‫ܭ‬ာǈᑚቋᆡࡼࢾፃྙ‫ܭ‬31Ⴥာă
``````````````````````````````` ።፿ቧᇦ
‫ݚ‬௜ਜ਼๬വ
‫ݧ‬፿ጙᒑ2μG࢟ྏॊܰ୓W DDĂECQਜ਼BCQ๬വᒗHOEă
‫ݧ‬፿ጙᒑ3/3μG࢟ྏ୓SCQ๬വᒗHOEă‫ݚ‬ሣဟ።‫ܜ‬඾ၫ
ᔊቧ੓ࡼऩૄ࢟ഗᄰਭැঢࡼෝผཌᎮǈྙෝผ࢟Ꮞၒ
ྜྷૄവ૞BCQ๬വ࢟ྏ୻࢐࣡ǈෝผ࢐ਜ਼ၫᔊ࢐።ॊఎă
______________________________________________________________________________________
39
NBY271420NBY27143
‫ܭ‬28/! 43ᆡဤܰ൩
NBY271420NBY27143
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
‫ܭ‬31/! ࢐ᒍ፛୭ᓨზஊ൩
‫ܭ‬2:/! ‫ܟ‬ஏ࡝Ꮔኔ੓
BOUNDARY CELL NO.
DESCRIPTION/PIN
A0A A0B
A0 PIN STATE
0–147
Reserved
00
High impedance
148
GPIO1 (output)
01
Low
149
GPIO2 (output)
10
High
150
SDA (output)
11
Not defined
151
ALERT
152
FAULT2
153
FAULT1
154
OVERT
155
RESET
156
40
OVERC
157–182
Reserved
183
GPIO2 (input)
184
GPIO1 (input)
185
SDA (input)
186
A0b
187
A0a
188
A1b
``````````````````````````````` በຢቧᇦ
PROCESS: BiCMOS
``````````````````````````````` ॖᓤቧᇦ
ྙኊᔢதࡼॖᓤᅪተቧᇦਜ਼੆๤‫ݚ‬௜ǈ༿‫އ‬ኯ china.maxim-ic.
com/packagesă༿ᓖፀǈॖᓤ‫ܠ‬൩ᒦࡼĐ,đĂĐ$đ૞Đ.đஞ‫ܭ‬ာ
SpITᓨზăॖᓤᅄᒦభถ۞਺‫ݙ‬ᄴࡼᆘᓮᔊ९ǈࡣॖᓤᅄᒑᎧॖ
ᓤᎌਈǈᎧSpITᓨზᇄਈă
189
A1a
190
SCL
ॖᓤಢቯ
ॖᓤ‫ܠ‬൩
ᅪተ‫ܠ‬੓
੆๤‫ݚ‬௜‫ܠ‬੓
191–197
Reserved
48 TQFN-EP
T4877+6
21-0144
90-0132
______________________________________________________________________________________
૥᎖FFQSPNࡼᇹᄻପ఼໭ǈ
ᄋ৙ऻጵပ৺ᑇࡀ߼
ኀࢿ੓
ኀࢿ྇໐
ႁී
ኀখ጑
0
7/07
ᔢ߱‫۾ۈ‬ă
1
10/07
ኀখ೫ࢾ৪ቧᇦă
1
2
6/10
ኀখ೫፛୭ႁීă
11
3
9/10
Ᏼ Fmfdusjdbm! Dibsbdufsjtujdt ‫ݝ‬ॊᒦኀখ೫ᔢቃ૥ᓰ࢟ኹ‫ݬ‬ၫă
3
—
Nbyjn ۱ய‫ࠀူێ‬
۱ய 9439ቧረ ᎆᑶ‫ܠ‬൩ 211194
඾ॅ࢟જǖ911!921!1421
࢟જǖ121.7322 62::
ࠅᑞǖ121.7322 63::
Nbyjn‫࣪ݙ‬Nbyjn‫ޘ‬ອጲᅪࡼྀੜ࢟വဧ፿ঌᐊǈጐ‫ݙ‬ᄋ৙໚ᓜಽ኏భăNbyjnۣഔᏴྀੜဟମĂ඗ᎌྀੜᄰۨࡼ༄ᄋሆኀখ‫ޘ‬ອᓾ೯ਜ਼ਖৃࡼཚಽă
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ______________________ 41
© 2010 Maxim Integrated Products
Nbyjn ဵ Nbyjn!Joufhsbufe!Qspevdut-!Jod/ ࡼᓖ‫ݿ‬࿜‫ܪ‬ă
NBY271420NBY27143
```````````````````````````````````````````````````````````````````````````` ኀࢿ಼ဥ
19-0870; Rev 3; 9/10
KIT
ATION
EVALU
E
L
B
A
AVAIL
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Features
The MAX16031/MAX16032 EEPROM-configurable system monitors feature an integrated 10-bit analog-todigital converter (ADC) designed to monitor voltages,
temperatures, and current in complex systems. These
EEPROM-configurable devices allow enormous flexibility
in selecting operating ranges, upper and lower limits,
fault output configuration, and operating modes with
the capability of storing these values within the device.
The MAX16031 monitors up to eight voltages, three
temperatures (one internal/two external remote temperature diodes), and a single current. The MAX16032
monitors up to six voltages and two temperatures (one
internal/one remote temperature diode). Each of these
monitored parameters is muxed into the ADC and written to its respective register that can be read back
through the SMBus™ and JTAG interface.
Measured values are compared to the user-configurable upper and lower limits. For voltage measurements, there are two undervoltage and two overvoltage
limits. For current and temperature, there are two sets
of upper limits. Whenever the measured value is outside its limits, an alert signal is generated to notify the
processor. Independent outputs are available for overcurrent, overtemperature, and undervoltage/overvoltage that are configured to assert on assigned
channels. There are also undedicated fault outputs that
are configured to offer a secondary limit for temperature, current, or voltage fault or provide a separate
overvoltage output.
♦ Supply Voltage Operating Range of 2.85V to 14V
♦ Monitors Up to Eight Voltages (Single-Ended or
Pseudo-Differential) with 1% Accuracy
♦ EEPROM-Configurable Limits
Two Undervoltage and Two Overvoltage
Two Overtemperature
Two Overcurrent
♦ High-Side Current-Sense Amplifier with
Overcurrent Output (MAX16031 Only)
♦ Monitors Up to Three Temperatures
(1 Internal/2 Remote)
♦ Nonvolatile Fault Memory Stores Fault Conditions
for Later Retrieval
♦ Two Additional Configurable Fault Outputs
♦ Two Configurable GPIOs
♦ SMBus/I2C-Compatible Interface with ALERT
Output and Bus Timeout Function
♦ JTAG Interface
♦ 7mm x 7mm, 48-Pin TQFN Package
Applications
Servers
Workstations
PART
TEMP RANGE
PIN-PACKAGE
MAX16031ETM+
-40°C to +85°C
48 TQFN-EP*
MAX16032ETM+
-40°C to +85°C
48 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
IN2 1
N.C.
DXP1
DXN1
N.C. (DXP2)
N.C. (DXN2)
N.C. (CS+)
N.C. (CS-)
N.C.
N.C.
VCC
VCC
Pin Configuration
IN1
During a major fault event, such as a system shutdown,
the MAX16031/MAX16032 automatically copy the internal ADC registers into the nonvolatile EEPROM registers
that then are read back for diagnostic purposes.
The MAX16031/MAX16032 offer additional GPIOs that
are used for voltage sequencing, additional fault outputs, a manual reset input, or read/write logic levels. A
separate current-sense amplifier with an independent
output allows for fast shutoff during overcurrent conditions. The MAX16031/MAX16032 are available in a
7mm x 7mm TQFN package and are fully specified
from -40°C to +85°C.
Ordering Information
48
47
46
45
44
43
42
41
40
39
38
37
IN3 2
35 GND
IN4 3
34 DBP
N.C. 4
33 TDO
N.C. 5
32 N.C.
N.C. 6
N.C. 7
29 TDI
IN5 9
28 TCK
IN6 10
27 TMS
26 RESET
EP
13
14
15
16
17
18
19
20
21
22
23
24
RBP
SDA
SCL
A0
A1
ALERT
OVERT
N.C. (OVERC)
FAULT2
25 FAULT1
GPIO2
N.C. (IN8) 12
GND
Telecom
( ) MAX16031 ONLY
SMBus is a trademark of Intel Corp.
30 N.C.
GND 8
GPIO1
Networking
31 N.C.
MAX16031
MAX16032
N.C. (IN7) 11
Storage Systems
36 ABP
+
TQFN
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
MAX16031/MAX16032
General Description
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MAX16031/MAX16032
Selector Guide
VOLTAGE MONITORS
TEMPERATURE SENSORS
SINGLE ENDED
DIFFERENTIAL
INT
EXT
CURRENTSENSE AMPS
MAX16031ETM+
8
4
1
2
1
4
2
MAX16032ETM+
6
3
1
1
—
4
2
PART
FAULT
GPIOs
OUTPUTS
Typical Application Circuit
5V
5V DC-DC
EN
1.5V
1.5V
DC-DC
3.3V
3.3V DC-DC
EN
1.2V
1.2V
DC-DC
12V BUS
2.5V
2.5V DC-DC
EN
0.9V
0.9V
LINEAR
1.8V
1.8V DC-DC
EN
3.3V AUX
CS+
CS-
IN1
IN2
IN3
IN4
IN5
VCC
1μF
IN6
IN7
IN8
ALERT
INT
SCL
SCL
SDA
SDA
μC
GPIO1
RESET
RESET
SYSTEM RESET
DXP1
MAX16031
FAULT1
FAULT2
DXN1
DXP2
OVERT
TO FAN CONTROL
OVERC
DXN2
GPIO2
DBP
ABP
1μF
1μF
RBP
GND
A0
A1
TMS
TCK
TDI
TDO
2.2μF
TMS
SYSTEM JTAG
HEADER
TCK
TDI
MANUAL
RESET
SWITCH
TO OTHER
JTAG DEVICES
TDO
2
_______________________________________________________________________________________
WARNING INDICATORS
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Input/Output Current
(all except DXN1, DXN2, SDA, and ALERT) ..................20mA
Continuous Power Dissipation (TA = +70°C)
48-Pin, 7mm x 7mm TQFN
(derate 27.8mW/°C above +70°C) ........................2222.2mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+250°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = 2.9V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
Operating Voltage Range
Undervoltage Lockout
Undervoltage Lockout Hysteresis
Supply Current
SYMBOL
CONDITIONS
VCC
VUVLO
MIN
2.90
Minimum voltage at VCC
to access the digital interfaces
VUVLOHYS
ICC
TYP
MAX
UNITS
14.00
V
2.8
V
100
Static (EEPROM not accessed)
3
mV
5
mA
ADC DC ACCURACY
Resolution
Total Unadjusted Error
TA = -40°C to +85°C
10
Bits
0.9
% FSR
Integral Nonlinearity
1
LSB
Differential Nonlinearity
1
LSB
ADC Total Monitoring Cycle Time
tCYCLE
ADC IN_ Voltage Ranges
Reference Voltage
VRBP
Eight supply inputs, three temperatures,
and current sense
80
Register map bit set to 00
(LSB = 5.46mV)
5.6
Register map bit set to 01
(LSB = 2.73mV)
2.8
Register map bit set to 10
(LSB = 1.36mV)
1.4
1.386
1.4
100
µs
V
1.414
V
5.6
V
80
kΩ
IN_ ANALOG INPUT
Absolute Input Voltage Range
(Referenced to GND)
0
Input Impedance
30
50
_______________________________________________________________________________________
3
MAX16031/MAX16032
ABSOLUTE MAXIMUM RATINGS
VCC to GND ............................................................-0.3V to +15V
IN_, FAULT_, SCL, SDA, OVERT to GND.................-0.3V to +6V
A0, A1, TCK, TMS, TDI to GND ................................-0.3V to +6V
OVERC, RESET, GPIO_, ALERT to GND..................-0.3V to +6V
RBP, ABP, DBP to GND ...-0.3V to lower of (6V and VCC + 0.3V)
TDO, DXP1, DXP2 to GND..........................-0.3V to VDBP + 0.3V
CS+, CS- to GND ...................................................-0.3V to +30V
(CS+ - CS-) ............................................................................±5V
DXN1, DXN2 to GND.............................................-0.3V to +0.8V
SDA, ALERT Current ...........................................-1mA to +50mA
DXN1, DXN2 Current ............................................................1mA
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.9V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Percent of programmed
threshold
Input Hysteresis
MIN
TYP
r5Ch[5] = 0
0.78
r5Ch[5] = 1
1.17
MAX
UNITS
%
RESET OUTPUT
Reset Timeout Period
tRP
r20h[5:3] = 000; from MR going high
22.5
25
27.5
r20h[5:3]= 001
2.25
2.5
2.75
r20h[5:3]= 010
9
10
11
r20h[5:3]= 011
36
40
44
r20h[5:3]= 100
144
160
176
r20h[5:3]= 101
576
640
704
r20h[5:3]= 110
1152
1280
1408
r20h[5:3]= 111
2304
2560
2816
µs
ms
TEMPERATURE MEASUREMENTS
Internal Sensor Measurement
Error
(Note 2)
±3
°C
External Remote Diode
Temperature Measurement Error
(Note 2)
±5
°C
0.5
°C
Temperature Measurement
Resolution
Temperature Measurement Noise
0.1
°C
External Diode Drive High
Internal sensor
84
µA
External Diode Drive Low
6
µA
Diode Drive Current Ratio
14
DXN_ Impedance to GND
1.8
kΩ
0.1
°C/V
Power-Supply Rejection
PSR
Internal sensor, DC condition
CURRENT SENSE
CS+ Input Voltage Range
Input Bias Current
VCS+
3
VCS+ = VCS-
14
25
ICS-
VCS- = VCS+
3
8
25
28.5
A = 48
Primary Current-Sense
Differential Thresholds
Primary Current-Sense Threshold
Secondary Overcurrent
Threshold Timeout
4
28
ICS+
VCSTH
CSHYS
VCS+ - VCS-
21.5
A = 24
45
50
55
A = 12
92
100
108
A=6
190
200
210
V
µA
mV
Percent of VCSTH
0.5
%
r5Ch[1:0] = 00
50
µs
r5Ch[1:0] = 01
3.6
4
4.4
r5Ch[1:0] = 10
14.4
16
17.6
r5Ch[1:0] = 11
57.6
64
70.4
_______________________________________________________________________________________
ms
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
(VCC = 2.9V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Current-Sense Analog Input
Range
CONDITIONS
VCS+ - VCS-
ADC Current-Sense
Measurement Accuracy
A=6
MIN
TYP
232
A = 12
116
A = 24
58
A = 48
29
-4
±0.2
+4
VSENSE = 50mV, (A = 6, 12 only)
-10
±1.2
+10
VSENSE = 25mV
±2
VSENSE = 10mV
±10
Common-Mode Rejection Ratio
CMRRCS
Power-Supply Rejection Ratio
PSRRCS
OVERC Output Leakage Current
IOVERCLKG
OVERC Output Low Voltage
VOLOVERC
OVERC Propagation Delay
tOVERC
-3
VCS+ > 4V
UNITS
mV
VSENSE = 150mV, (A = 6 only)
VSENSE = 20mV to 100mV,
VCS+ = 12V, A = 6
Gain Accuracy
MAX
+3
%
%
80
dB
80
dB
1
IOUT = 3mA
VSENSE - VCSTH > 10% x VCSTH
µA
0.4
V
5
µs
0.8
V
SMBus INTERFACE (SCL, SDA)
Logic-Input Low Voltage
VIL
Input voltage falling
Logic-Input High Voltage
VIH
Input voltage rising
2.0
GND or 5.5V (VCC = 5.5V) VSCL, VSDA
-1
Output Low Voltage
VOL
ISINK = 3mA
Input Capacitance
CIN
Input Leakage Current
V
+1
0.4
5
µA
V
pF
ALERT, FAULT_, AND GPIO_ OUTPUTS
ALERT, FAULT_, and GPIO_
Output Low Voltage
ISINK = 3mA
ALERT, FAULT_, and GPIO_
Leakage Current
V ALERT, V FAULT, VGPIO_ = 5.5V or GND
-1
0.4
V
+1
µA
0.8
V
GPIO_ (INPUT)
Logic-Low Voltage
GPIO_ voltage falling
Logic-High Voltage
GPIO_ voltage rising
2.0
V
SMBus ADDRESS (A0 and A1)
Address Logic-Low
0.4
Address Logic-High
1.4
V
V
High-Impedance Leakage
Current
Maximum current to achieve highimpedance logic level
-1
+1
µA
Input Leakage Current
0 to 3V, VCC = 3V
-12
+12
µA
_______________________________________________________________________________________
5
MAX16031/MAX16032
ELECTRICAL CHARACTERISTICS (continued)
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.9V to 14V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 3.3V, TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
400
kHz
SMBus TIMING (see Figure 1)
Serial-Clock Frequency
fSCL
Bus Free Time Between STOP
and START Conditions
tBUF
1.3
µs
START Condition Setup Time
tSU:STA
0.6
µs
START Condition Hold Time
tHD:STA
0.6
µs
STOP Condition Setup Time
tSU:STO
0.6
µs
Clock Low Period
tLOW
1.3
µs
Clock High Period
tHIGH
0.6
µs
Data Setup Time
tSU:DAT
Output Fall Time
tOF
100
Data Hold Time
tHD:DAT
From 50% SCL falling to SDA change
0.3
tTIMEOUT
SCL time low for reset
25
Minimum Pulse Width Ignored
SMBus Timeout
ns
CBUS = 10pF to 400pF
250
ns
0.9
µs
35
ms
0.4
V
30
ns
JTAG INTERFACE (see Figure 2)
TDI, TMS, TCK Logic-Low Input
Voltage
VIL
Input voltage falling
TDI, TMS, TCK Logic-High Input
Voltage
VIH
Input voltage rising
TDO Logic-Output Low Voltage
VOL
ISINK = 4mA
TDO Logic-Output High Voltage
VOH
ISOURCE = 1mA
2.2
TDO high impedance
-10
Pullup to VDBP
6.5
TDO Leakage Current
TDI, TMS Pullup Resistors
RJPU
I/O Capacitance
CI/O
TCK Clock Period
TCK High/Low Time
2.2
V
V
+10
µA
16
kΩ
V
10
50
t1
t2, t3
0.4
pF
1000
(Note 3)
60
500
ns
ns
TCK to TMS, TDI Setup Time
t4
15
ns
TCK to TMS, TDI Hold Time
t5
35
ns
TCK to TDO Delay
t6
500
ns
TCK to TDO High-Impedance
Delay
t7
500
ns
tD-PO
4
ms
11
ms
MISCELLANEOUS
Power-On Delay
Single-Byte EEPROM Write Cycle
Delay
(Note 4)
Note 1: Limits to -40°C are guaranteed by design.
Note 2: Guaranteed by design.
Note 3: TCK stops either high or low.
Note 4: An additional cycle is required when writing to configuration memory for the first time.
6
_______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MAX16031/MAX16032
SDA
tBUF
tSU:DAT
tSU:STA
tHD:DAT
tLOW
tHD:STA
tSU:STO
SCL
tHIGH
tHD:STA
tR
tF
START
CONDITION
STOP
CONDITION
REPEATED START
CONDITION
START
CONDITION
Figure 1. SMBus Interface Timing Diagram
t1
t2
t3
TCK
t4
t5
TDI, TMS
t6
t7
TDO
TRI-STATE ONLY
Figure 2. JTAG Interface Timing Diagram
_______________________________________________________________________________________
7
Typical Operating Characteristics
(Typical values are at VCC = 3.3V, TA = +25°C, unless otherwise noted.)
NORMALIZED IN_ THRESHOLD
vs. TEMPERATURE
TA = -40°C
1.5
1.0
1.01
1.00
0.99
0.5
0.98
0
0.97
MAX16031 toc03
1.02
1.05
NORMALIZED RESET TIMEOUT PERIOD
ICC (mA)
2.0
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX16031 toc02
TA = +85°C
TA = +25°C
2.5
1.03
NORMALIZED IN_ THRESHOLD
3.0
MAX16031 toc01
VCC SUPPLY CURRENT
vs. VCC SUPPLY VOLTAGE
1.04
1.03
1.02
1.01
1.00
0.99
0.98
0.97
0.96
2
4
6
8
10
12
0.95
-40
14
-15
10
35
85
60
-40
-15
10
35
60
VCC (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
OUTPUT VOLTAGE LOW
vs. SINK CURRENT
ADC INTEGRAL NONLINEARITY
vs. INPUT VOLTAGE
ADC DIFFERENTIAL NONLINEARITY
vs. INPUT VOLTAGE
350
0.40
0.30
300
150
ADC DNL (LSB)
ADC INL (LSB)
200
0.10
0
-0.10
-0.20
100
0.10
0.05
0.20
250
0.15
85
MAX16031 toc06
0.50
MAX16031 toc04
400
MAX16031 toc05
0
OUTPUT VOLTAGE LOW (mV)
0
-0.05
-0.10
-0.30
50
-0.15
-0.40
0
-0.20
-0.50
0
1
2
3
4
5
6
7
INPUT VOLTAGE (DIGITAL CODE)
REFERENCE VOLTAGE
vs. TEMPERATURE
ADC HALF-SCALE
VOLTAGE INPUT
1.48
REFERENCE VOLTAGE (V)
800
700
600
500
400
300
1.46
1.44
1.42
1.40
1.38
1.36
200
1.34
100
1.32
0
MAX16031 toc08
1.50
MAX16031 toc07
1000
1.30
507
508
509
510
511
ADC OUTPUT CODE
8
128 256 384 512 640 768 896 1024
INPUT VOLTAGE (DIGITAL CODE)
NOISE HISTOGRAM
900
0
128 256 384 512 640 768 896 1024
0
SINK CURRENT (mA)
COUNTS (THOUSANDS)
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
512
513
-40
-15
10
35
60
TEMPERATURE (°C)
_______________________________________________________________________________________
85
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
0
-1
4
3
2
1
0
-1
-2
TEMPERATURE ERROR (°C)
1
MAX16031 toc10
2
5
TEMPERATURE ERROR (°C)
MAX16031 toc09
-3
-2
-4
-3
-5
-10
15
40
90
65
0
15
30
45
60
75
100
CURRENT-SENSE ACCURACY
vs. VSENSE
CURRENT-SENSE PRIMARY THRESHOLD
vs. VSENSE OVERDRIVE
-4
-5
-6
-7
-8
MAX16031 toc13
MAX16031 toc12
-3
8
6
4
2
0
-2
-9
-4
-10
2
3
4
5
6
7
DXP-DXN CAPACITANCE (nF)
8
9
CURRENT-SENSE PRIMARY THRESHOLD (μs)
TEMPERATURE ERROR
vs. DXP-DXN CAPACITANCE
-2
1
10
1
90 105
LEAKAGE RESISTANCE (MΩ)
0
0
PATH = DXP TO VCC (+5V)
REMOTE DIODE TEMPERATURE (°C)
-1
TEMPERATURE ERROR (°C)
-30 -15
PATH = DXP TO GND
TEMPERATURE (°C)
CURRENT-SENSE ACCURACY (%)
-35
15
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
2.0
MAX16031 toc14
TEMP SENSOR ACCURACY (°C)
3
TEMPERATURE ERROR
vs. LEAKAGE RESISTANCE
TEMPERATURE ERROR
vs. REMOTE DIODE TEMPERATURE
MAX16031 toc11
INTERNAL TEMPERATURE SENSOR
ACCURACY vs. TEMPERATURE
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
23 46 69 92 115 138 161 184 207 230
VSENSE (mV)
0
20
40
60
80
100
VSENSE OVERDRIVE (mV)
_______________________________________________________________________________________
9
MAX16031/MAX16032
Typical Operating Characteristics (continued)
(Typical values are at VCC = 3.3V, TA = +25°C, unless otherwise noted.)
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Pin Description
PIN
MAX16031
1
2
MAX16032
1
2
NAME
FUNCTION
IN2
Supply Monitor Input 2. IN2 is internally sampled by the ADC. It is configurable for unipolar/
bipolar and single-ended/pseudo-differential. In pseudo-differential mode, IN1 and IN2 form
the + and - of the differential pair. Each input must stay within the specified ADC IN_ voltage
range.
IN3
Supply Monitor Input 3. IN3 is internally sampled by the ADC. It is configurable for unipolar/
bipolar and single-ended/pseudo-differential. In pseudo-differential mode, IN3 and IN4 form
the + and - of the differential pair. Each input must stay within the specified ADC IN_ voltage
range.
3
3
IN4
Supply Monitor Input 4. IN4 is internally sampled by the ADC. It is configurable for unipolar/
bipolar and single-ended/pseudo-differential. In pseudo-differential mode, IN3 and IN4 form
the + and - of the differential pair. Each input must stay within the specified ADC IN_ voltage
range.
4–7, 30, 31,
32, 39, 40,
47
4–7, 11, 12,
23, 30, 31,
32, 39,
40–44, 47
N.C.
No Connection. Leave unconnected. Do not use.
8, 13, 35
8, 13, 35
GND
9
10
11
10
9
10
—
Ground. Connect all GND pins together.
IN5
Supply Monitor Input 5. IN5 is internally sampled by the ADC. It is configurable for unipolar/
bipolar and single-ended/pseudo-differential. In pseudo-differential mode, IN5 and IN6 form
the + and - of the differential pair. Each input must stay within the specified ADC IN_ voltage
range.
IN6
Supply Monitor Input 6. IN6 is internally sampled by the ADC. It is configurable for unipolar/
bipolar and single-ended/pseudo-differential. In pseudo-differential mode, IN5 and IN6 form
the + and - of the differential pair. Each input must stay within the specified ADC IN_ voltage
range.
IN7
Supply Monitor Input 7. IN7 is internally sampled by the ADC. It is configurable for unipolar/
bipolar and single-ended/pseudo-differential. In pseudo-differential mode, IN7 and IN8 form
the + and - of the differential pair. Each input must stay within the specified ADC IN_ voltage
range.
Supply Monitor Input 8. IN8 is internally sampled by the ADC. It is configurable for unipolar/
bipolar and single-ended/pseudo-differential. In pseudo-differential mode, IN7 and IN8 form
the + and - of the differential pair. Each input must stay within the specified ADC IN_ voltage
range.
12
—
IN8
14
14
GPIO1
Configurable General-Purpose Input/Output 1
15
15
GPIO2
Configurable General-Purpose Input/Output 2
16
16
RBP
17
17
SDA
SMBus Serial-Data, Open-Drain Input/Output
18
18
SCL
SMBus Serial-Clock Input
19
19
A0
SMBus Address Input 0. Connect to DBP, GND, or leave unconnected to select the desired
device address.
20
20
A1
SMBus Address Input 1. Connect to DBP, GND, or leave unconnected to select the desired
device address.
ADC Reference Bypass. RBP is an internally generated 1.4V reference for the ADC. Bypass
RBP to GND with a 2.2µF capacitor. Do not use RBP to power any additional circuitry.
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
PIN
MAX16031
MAX16032
NAME
FUNCTION
21
21
ALERT
SMBus Alert Open-Drain Output. ALERT follows the SMBALERT# signal functionality
described in Appendix A of the SMBus 2.0 Specification. ALERT asserts when the device
detects a fault, thereby interrupting the host processor to query which device on the serial
bus detected faults.
22
22
OVERT
Overtemperature, Open-Drain Output. OVERT asserts when an overtemperature condition is
detected.
23
—
OVERC
Overcurrent, Open-Drain Output. OVERC asserts when the primary overcurrent threshold is
exceeded.
24
24
FAULT2 Configurable Open-Drain Fault Output 2
25
25
FAULT1 Configurable Open-Drain Fault Output 1
26
26
RESET
27
27
TMS
JTAG Test Mode Select Input. Internally pulled up to VDBP with a 10kΩ resistor.
28
28
TCK
JTAG Test Clock Input
Configurable Open-Drain Reset Output
29
29
TDI
JTAG Test Data Input. Internally pulled up to VDBP with a 10kΩ resistor.
33
33
TDO
JTAG Test Data Output
34
34
DBP
Internal Digital Voltage Regulator Output. Connect a 1µF bypass capacitor from DBP to
GND. Do not use DBP to power external circuitry.
36
36
ABP
Internal Analog Voltage Regulator Output. Connect a 1µF bypass capacitor from ABP to
GND. Do not use ABP to power external circuitry.
37, 38
37, 38
VCC
Device Power Supply. Bypass VCC to GND with a 1µF capacitor.
41
—
CS-
Current-Sense Negative Input. Must be biased between 3V to 28V for proper operation.
42
—
CS+
Current-Sense Positive Input. Must be biased between 3V to 28V for proper operation.
43
—
DXN2
Remote Diode 2 Negative Input. If remote sensing is not used, connect DXP2 to DXN2.
44
—
DXP2
Remote Diode 2 Positive Input. If remote sensing is not used, connect DXP2 to DXN2.
45
45
DXN1
Remote Diode 1 Negative Input. If remote sensing is not used, connect DXP1 to DXN1.
46
46
DXP1
Remote Diode 1 Positive Input. If remote sensing is not used, connect DXP1 to DXN1.
48
48
IN1
Supply Monitor Input 1. IN1 is internally sampled by the ADC. It is configurable for unipolar/
bipolar and single-ended/pseudo-differential. In pseudo-differential mode, IN1 and IN2 form
the + and - of the differential pair. Each input must stay within the specified ADC IN_ voltage
range.
—
—
EP
Exposed Pad. Connect EP to ground. EP is internally connected to GND. Do not use as the
main ground connection.
______________________________________________________________________________________
11
MAX16031/MAX16032
Pin Description (continued)
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MAX16031/MAX16032
Functional Diagram
VCC
INTERNAL
TEMPERATURE SENSOR
CIRCUITRY
OSCILLATOR
IN1
10-BIT
ADC
ANALOG
REGULATOR
ABP
DIGITAL
REGULATOR
DBP
1.4V INTERNAL
REFERENCE
RBP
INPUT RANGE
SELECTION
FAULT1
REGISTERS
IN2
INPUT RANGE
SELECTION
IN3
INPUT RANGE
SELECTION
IN4
INPUT RANGE
SELECTION
IN5
INPUT RANGE
SELECTION
IN6
INPUT RANGE
SELECTION
*IN7
INPUT RANGE
SELECTION
*IN8
INPUT RANGE
SELECTION
FAULT
COMPARATORS
FAULT2
OVERT
RESET
MULTIPLEXER
GPIO1
GPIO2
SDA
SCL
EEPROM
SMBus
SERIAL
INTERFACE
ALERT
A0
A1
DXP1
DXN1
*DXP2
EXTERNAL
TEMPERATURE
SENSOR
CIRCUITRY
TMS
*DXN2
*CS+
*CS-
CURRENT-SENSE
AMPLIFIER/
COMPARATOR
MAX16031/
MAX16032
JTAG
SERIAL
INTERFACE
TCK
TDI
TDO
OVERC
*MAX16031 ONLY
12
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
READ/
WRITE
00h
—
R
IN1 ADC Result Register (MSB)
01h
—
R
IN1 ADC Result Register (LSB)
02h
—
R
IN2 ADC Result Register (MSB)
03h
—
R
IN2 ADC Result Register (LSB)
04h
—
R
IN3 ADC Result Register (MSB)
05h
—
R
IN3 ADC Result Register (LSB)
06h
—
R
IN4 ADC Result Register (MSB)
07h
—
R
IN4 ADC Result Register (LSB)
08h
—
R
IN5 ADC Result Register (MSB)
MAX16031/MAX16032
Table 1. Address Map
DESCRIPTION
09h
—
R
IN5 ADC Result Register (LSB)
0Ah
—
R
IN6 ADC Result Register (MSB)
0Bh
—
R
IN6 ADC Result Register (LSB)
0Ch
—
R
IN7 ADC Result Register (MSB)*
0Dh
—
R
IN7 ADC Result Register (LSB)*
0Eh
—
R
IN8 ADC Result Register (MSB)*
0Fh
—
R
IN8 ADC Result Register (LSB)*
10h
—
R
Internal Temperature Sensor ADC Result Register (MSB)
11h
—
R
Internal Temperature Sensor ADC Result Register (LSB)
12h
—
R
Remote Temperature Sensor 1 ADC Result Register (MSB)
13h
—
R
Remote Temperature Sensor 1 ADC Result Register (LSB)
14h
—
R
Remote Temperature Sensor 2 ADC Result Register (MSB)
15h
—
R
Remote Temperature Sensor 2 ADC Result Register (LSB)
16h
—
R
Current-Sense ADC Result Register
17h
97h
R/W
Voltage Monitoring Input ADC Range Selection (IN1–IN4)
18h
98h
R/W
Voltage Monitoring Input ADC Range Selection (IN5–IN8)
19h
99h
R/W
Current-Sense Gain/Primary Threshold and Remote Temperature Sensor 1 Gain Trim
1Ah
9Ah
R/W
Voltage Monitoring Input Enable
R/W
Internal/Remote Temperature Sensor, Current Sense, and ALERT Enables and
Remote Temperature Sensor 1 Offset Trim
1Bh
9Bh
1Ch
9Ch
R/W
Voltage Monitoring Input Single-Ended/Differential and Unipolar/Bipolar Selection
1Dh
9Dh
R/W
FAULT1 Dependency Selection
1Eh
9Eh
R/W
FAULT2 Dependency Selection
1Fh
9Fh
R/W
OVERT Dependency Selection
20h
A0h
R/W
RESET Dependency and Timeout Selection
21h
A1h
R/W
RESET IN1–IN8 Dependency Selection
22h
A2h
R/W
GPIO1 Configuration
23h
A3h
R/W
GPIO1 Dependency Selection
24h
A4h
R/W
GPIO2 Configuration
______________________________________________________________________________________
13
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 1. Address Map (continued)
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
READ/
WRITE
25h
A5h
R/W
GPIO2 Dependency Selection
26h
A6h
R/W
IN1 Primary Undervoltage Threshold
27h
A7h
R/W
IN1 Primary Overvoltage Threshold
28h
A8h
R/W
IN1 Secondary Undervoltage Threshold
14
DESCRIPTION
29h
A9h
R/W
IN1 Secondary Overvoltage Threshold
2Ah
AAh
R/W
IN2 Primary Undervoltage Threshold
2Bh
ABh
R/W
IN2 Primary Overvoltage Threshold
2Ch
ACh
R/W
IN2 Secondary Undervoltage Threshold
2Dh
ADh
R/W
IN2 Secondary Overvoltage Threshold
2Eh
AEh
R/W
IN3 Primary Undervoltage Threshold
2Fh
AFh
R/W
IN3 Primary Overvoltage Threshold
30h
B0h
R/W
IN3 Secondary Undervoltage Threshold
31h
B1h
R/W
IN3 Secondary Overvoltage Threshold
32h
B2h
R/W
IN4 Primary Undervoltage Threshold
33h
B3h
R/W
IN4 Primary Overvoltage Threshold
34h
B4h
R/W
IN4 Secondary Undervoltage Threshold
35h
B5h
R/W
IN4 Secondary Overvoltage Threshold
36h
B6h
R/W
IN5 Primary Undervoltage Threshold
37h
B7h
R/W
IN5 Primary Overvoltage Threshold
38h
B8h
R/W
IN5 Secondary Undervoltage Threshold
39h
B9h
R/W
IN5 Secondary Overvoltage Threshold
3Ah
BAh
R/W
IN6 Primary Undervoltage Threshold
3Bh
BBh
R/W
IN6 Primary Overvoltage Threshold
3Ch
BCh
R/W
IN6 Secondary Undervoltage Threshold
3Dh
BDh
R/W
IN6 Secondary Overvoltage Threshold
3Eh
BEh
R/W
IN7 Primary Undervoltage Threshold*
3Fh
BFh
R/W
IN7 Primary Overvoltage Threshold*
40h
C0h
R/W
IN7 Secondary Undervoltage Threshold*
41h
C1h
R/W
IN7 Secondary Overvoltage Threshold*
42h
C2h
R/W
IN8 Primary Undervoltage Threshold*
43h
C3h
R/W
IN8 Primary Overvoltage Threshold*
44h
C4h
R/W
IN8 Secondary Undervoltage Threshold*
45h
C5h
R/W
IN8 Secondary Overvoltage Threshold*
46h
C6h
R/W
Internal Temperature Sensor Primary Overtemperature Threshold (MSB)
47h
C7h
R/W
Internal Temperature Sensor Secondary Overtemperature Threshold (MSB)
48h
C8h
R/W
Remote Temperature Sensor 1 Primary Overtemperature Threshold
49h
C9h
R/W
Remote Temperature Sensor 1 Secondary Overtemperature Threshold
4Ah
CAh
R/W
Remote Temperature Sensor 2 Primary Overtemperature Threshold
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
READ/
WRITE
4Bh
CBh
R/W
4Ch
CCh
R/W
Overcurrent Secondary Threshold
DESCRIPTION
Remote Temperature Sensor 2 Secondary Overtemperature Threshold
4Dh
CDh
R/W
Remote Temperature Sensor Primary/Secondary Overtemperature Threshold (LSBs).
External Temperature Sensor 2 Offset Trim
4Eh
CEh
R/W
Remote Temperature Sensor 1/2 Primary/Secondary Overtemperature Threshold (LSBs)
4Fh
CFh
R/W
Remote Temperature Sensor 2 Gain Trim
50h
D0h
R/W
Remote Temperature Sensor Short/Open Status
51h
D1h
R/W
IN1–IN8 Primary Threshold Fault Status
52h
D2h
R/W
IN1–IN8 Secondary Threshold Fault Status
53h
D3h
R/W
Temperature/Current Threshold Fault Status
54h
D4h
R/W
Remote Temperature Sensor Short/Open Fault Mask
55h
D5h
R/W
IN1–IN8 Primary Threshold Fault Mask
56h
D6h
R/W
IN1–IN8 Secondary Threshold Fault Mask
57h
D7h
R/W
Temperature/Current Threshold Fault Mask
58h
D8h
R/W
IN1–IN8 Primary Undervoltage Faults Triggering Fault EEPROM
59h
D9h
R/W
IN1–IN8 Primary Overvoltage Faults Triggering Fault EEPROM
5Ah
DAh
R/W
Temperature/Current Faults Triggering Fault EEPROM
5Bh
DBh
R/W
Temperature Filter Selection and Postboot Fault Mask Time
5Ch
DCh
R/W
Threshold Fault Options and Overcurrent Fault Timeout
5Dh
DDh
—
5Eh
DEh
R/W
Customer Firmware Version
5Fh
DFh
R/W
EEPROM and Configuration Lock
60h–7Fh
E0h–FFh
—
Reserved
—
80h
R
IN1–IN8 Primary Threshold Fault Status at Time of Fault
—
81h
R
IN1–IN8 Secondary Threshold Fault Status at Time of Fault
—
82h
R
Temperature/Current Threshold Fault Status at Time of Fault
—
83h
R
IN1 Conversion Result at Time of Fault
—
84h
R
IN2 Conversion Result at Time of Fault
—
85h
R
IN3 Conversion Result at Time of Fault
—
86h
R
IN4 Conversion Result at Time of Fault
—
87h
R
IN5 Conversion Result at Time of Fault
—
88h
R
IN6 Conversion Result at Time of Fault
—
89h
R
IN7 Conversion Result at Time of Fault*
—
8Ah
R
IN8 Conversion Result at Time of Fault*
—
8Bh
R
Internal Temperature Sensor Conversion Result at Time of Fault
—
8Ch
R
Remote Temperature Sensor 1 Conversion Result at Time of Fault
—
8Dh
R
Remote Temperature Sensor 2 Conversion Result at Time of Fault*
—
8Eh
R
Current-Sense Conversion Result at Time of Fault*
Reserved
*MAX16031 only.
______________________________________________________________________________________
15
MAX16031/MAX16032
Table 1. Address Map (continued)
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Detailed Description
Getting Started
The MAX16031/MAX16032 contain both I2C/SMBus and
JTAG serial interfaces for accessing registers and
EEPROM. Use only one interface at any given time. For
more information on how to access the internal memory
through these interfaces, see the I2C/SMBus-Compatible
Serial Interface and JTAG Serial Interface sections. This
data sheet uses a specific convention for referring to bits
within a particular address location. As an example,
r15h[3:0] refers to bits 3 through 0 in register with
address 15 hexadecimal.
The factory-default values at power-on reset (POR) for all
EEPROM locations are zeros. POR occurs when VCC
reaches the undervoltage lockout (UVLO) of 2.8V. At
POR, the device begins a boot-up sequence. During the
boot-up sequence, all monitored inputs are masked from
initiating faults and EEPROM contents are copied to the
respective register locations. The boot-up sequence
takes up to 1.81ms. Monitoring is disabled for up to 16s
past the boot-up sequence by programming r5Bh[3:0]
(see the Miscellaneous Settings section). RESET is low
during boot-up and remains low after boot-up for its programmed timeout period after all monitored channels are
within their respective thresholds.
The MAX16031/MAX16032 monitor up to eight voltages,
up to one current, and up to three temperatures. After
boot-up, an internal multiplexer cycles through each
input. At each multiplexer stop, the 10-bit ADC converts
the analog parameter to a digital result and stores the
result in a register. Each time the multiplexer completes a
cycle, internal logic compares the conversion results to
the thresholds stored in memory. When a conversion vio-
lates a programmed threshold, the conversion is configured to generate a fault. Logic outputs are programmed
to depend on many combinations of faults. Additionally,
faults are programmed to trigger a fault log, whereby all
fault information is automatically written to EEPROM.
Voltage Monitoring
The MAX16031 provides eight inputs, IN1–IN8, for voltage monitoring. The MAX16032 provides six inputs,
IN1–IN6, for voltage monitoring. Each input voltage
range is programmable through r17h[7:0] and r18h[7:0]
(see Table 2). Voltage monitoring for each input is
enabled through r1Ah[7:0] (see Table 2). There are four
programmable thresholds per voltage monitor input: primary undervoltage, secondary undervoltage, primary
overvoltage, and secondary overvoltage. All voltage
thresholds are 8 bits wide. Only the 8 most significant
bits of the conversion result are compared to the
thresholds. See the Miscellaneous Settings section to
set the amount of hysteresis for the thresholds. See
Table 1 for an address map of all voltage monitor input
threshold registers.
ADC inputs are configurable for two different modes:
pseudo-differential and single-ended (see Table 3). In
pseudo-differential mode, two inputs make up a differential pair. Psuedo-differential conversions are performed by taking a single-ended conversion at each
input of a differential pair and then subtracting the
results. The pseudo-differential mode is selectable for
unipolar or bipolar operation. Unipolar differential operation allows only positive polarities of differential voltages. Bipolar differential operation allows negative and
positive polarities of differential voltages. Bipolar conversions are in two’s complement format. For example,
Table 2. Input Monitor Ranges and Enables
REGISTER
ADDRESS
17h
16
EEPROM
MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
[1:0]
IN1 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[3:2]
IN2 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[5:4]
IN3 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[7:6]
IN4 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
97h
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MAX16031/MAX16032
Table 2. Input Monitor Ranges and Enables (continued)
REGISTER
ADDRESS
18h
1Ah
EEPROM
MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
[1:0]
IN5 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[3:2]
IN6 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[5:4]
IN7 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
[7:6]
IN8 Voltage Range Selection:
00 = 5.6V, 01 = 2.8V
10 = 1.4V, 11 = Reserved
98h
[0]
IN1 Monitoring Enable:
0 = IN1 monitoring disabled
1 = IN1 monitoring enabled
[1]
IN2 Monitoring Enable:
0 = IN2 monitoring disabled
1 = IN2 monitoring enabled
[2]
IN3 Monitoring Enable:
0 = IN3 monitoring disabled
1 = IN3 monitoring enabled
[3]
IN4 Monitoring Enable:
0 = IN4 monitoring disabled
1 = IN4 monitoring enabled
[4]
IN5 Monitoring Enable:
0 = IN5 monitoring disabled
1 = IN5 monitoring enabled
[5]
IN6 Monitoring Enable:
0 = IN6 monitoring disabled
1 = IN6 monitoring enabled
[6]
IN7 Monitoring Enable:
0 = IN7 monitoring disabled
1 = IN7 monitoring enabled
[7]
IN8 Monitoring Enable:
0 = IN8 monitoring disabled
1 = IN8 monitoring enabled
9Ah
______________________________________________________________________________________
17
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
a -1V differential input (range of 5.6V) gives a decimal
code of -183, which is 1101001001 in two’s complement binary form. In single-ended mode, conversions
are performed between a single input and ground.
When single-ended mode is selected, conversions are
always unipolar regardless of r1Ch[7:4]. The singleended and pseudo-differential ADC mode equations
are shown below.
Unipolar single-ended mode:
⎛ VIN−
⎞
X ADC = INT ⎜
× 1024⎟
⎝ VRANGE
⎠
where XADC is the resulting code in decimal, VIN- is the
voltage at a voltage monitoring input, and VRANGE is
the selected range programmed in r17h and r18h.
Bipolar/unipolar pseudo-differential mode:
⎛ VIN+
⎞
⎛ VIN−
⎞
X ADC = INT ⎜
× 1024⎟ − INT ⎜
× 1024⎟
⎝ VRANGE
⎠
⎝ VRANGE
⎠
where XADC is the resulting code in decimal, VIN+ is the
voltage at a positive input of a differential voltage monitoring input pair, VIN- is the voltage at a negative input of
a differential voltage monitoring input pair, and VRANGE
is the selected ADC IN_ voltage range programmed in
r17h and r18h.
Table 3. IN1–IN8 ADC Input Mode Selection
REGISTER
ADDRESS
1Ch
18
EEPROM
MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
[0]
IN1/IN2 Single-Ended/Pseudo-Differential:
0 = IN1 and IN2 conversions are single-ended.
1 = IN1 and IN2 conversions are pseudo-differential (IN1 to IN2).
[1]
IN3/IN4 Single-Ended/Pseudo-Differential:
0 = IN3 and IN4 conversions are single-ended.
1 = IN3 and IN4 conversions are pseudo-differential (IN3 to IN4).
[2]
IN5/IN6 Single-Ended/Pseudo-Differential:
0 = IN5 and IN6 conversions are single-ended.
1 = IN5 and IN6 conversions are pseudo-differential (IN5 to IN6).
[3]
IN7/IN8 Single-Ended/Pseudo-Differential:
0 = IN7 and IN8 conversions are single-ended.
1 = IN7 and IN8 conversions are pseudo-differential (IN7 to IN8).
[4]
IN1/IN2 Unipolar/Bipolar:
0 = IN1 and IN2 conversions are unipolar.
1 = IN1 and IN2 conversions are bipolar (two’s complement).
[5]
IN3/IN4 Unipolar/Bipolar:
0 = IN3 and IN4 conversions are unipolar.
1 = IN3 and IN4 conversions are bipolar (two’s complement).
[6]
IN5/IN6 Unipolar/Bipolar:
0 = IN5 and IN6 conversions are unipolar.
1 = IN5 and IN6 conversions are bipolar (two’s complement).
[7]
IN7/IN8 Unipolar/Bipolar:
0 = IN7 and IN8 conversions are unipolar.
1 = IN7 and IN8 conversions are bipolar (two’s complement).
9Ch
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
I TH =
VCSTH
RSENSE
where ITH is the current threshold to be set, VCSTH is
the threshold set by r19h[1:0], and RSENSE is the value
VMON
CS+
CS-
RSENSE
-
TO ADC MUX
of the sense resistor. See Table 4 for a description of
r19h. The ADC output for a current-sense conversion is:
(
V
× AV
X ADC = SENSE
× 28
VRBP
−
)
1
where XADC is the 8-bit decimal ADC result, VSENSE is
VCS+ - VCS-, AV is the current-sense voltage gain set
by r19h[1:0], and VRBP is the reference voltage at RBP
(1.4V typical).
OVERC is latched when the primary overcurrent threshold is exceeded by programming r5Ch[4]. The latch is
cleared by writing a ‘1’ to r53h[6]. OVERC depends
only on the primary overcurrent threshold. Other fault
outputs are programmed to depend on the secondary
overcurrent threshold. The secondary overcurrent
threshold is implemented through ADC conversions
and digital comparisons. The secondary overcurrent
threshold contains programmable time delay options
located in r5Ch[1:0]. Primary and secondary currentsense faults are enabled/disabled through r1Bh[3].
*AV
+
Temperature Monitoring
VL
The MAX16031 provides two sets of remote diode inputs,
DXP1/DXN1 and DXP2/DXN2, and one internal temperature sensor. The MAX16032 provides one set,
DXP1/DXN1, and one internal temperature sensor.
Calibration registers provide adjustments for gain and offset to accommodate different types of remote diodes.
The internal temperature sensor circuitry is factory
trimmed. In addition to offset/gain trimming, a programmable lowpass filter is provided. See Figure 4 for the
block diagram of the temperature sensor circuitry. The
remote diode is actually a diode-connected transistor.
See Application Notes AN1057 and AN1944 for information on error budget and several transistor manufacturers.
MAX16031
LOAD
+
OVERC
+
-
*VCSTH
*ADJUSTABLE BY r19h [1:0]
Figure 3. Current-Sense Block Diagram
Table 4. Overcurrent Primary Threshold and Remote Temperature Sense Gain Trim
REGISTER
ADDRESS
19h
4Fh
EEPROM
MEMORY
ADDRESS
99h
CFh
BIT RANGE
DESCRIPTION
[1:0]
Overcurrent Primary Threshold and Current-Sense Gain Setting:
00 = 200mV threshold, AV = 6V/V
01 = 100mV threshold, AV = 12V/V
10 = 50mV threshold, AV = 24V/V
11 = 25mV threshold, AV = 48V/V
[7:2]
Remote Temperature Sensor 1 Gain Trim. Note bit 6 is inverted.
[5:0]
Remote Temperature Sensor 1 Gain Trim
[7:6]
Not used
______________________________________________________________________________________
19
MAX16031/MAX16032
Current Monitoring
The MAX16031 provides current-sense inputs CS+/CSand a current-sense amplifier for current monitoring
(see Figure 3). There are two programmable currentsense thresholds: primary overcurrent and secondary
overcurrent. For fast fault detection, the primary overcurrent threshold is implemented with an analog comparator connected to the OVERC output. The primary
threshold equation is:
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 5. Temperature Data Format
ABP
IHIGH
ILOW
DXP_
-
TO ADC MUX
+
VBIAS ~ 100mV
DXN_
IBIAS
ABP
TEMPERATURE (°C)
DIGITAL CODE
+128
1100000000
+125
1011111010
+100
1011010000
+25.5
1000110011
0
1000000000
-10
0111101100
-75
0101101010
-100
0100111000
-128
0100000000
Diode fault
0000000000
Reading ADC Results
Figure 4. Remote Temperature Sensor Amplifier Circuitry
The ADC converts the internal sensor and remote sensor amplifier outputs. Each time the ADC converts all
enabled parameters, the temperature conversions are
compared to the temperature threshold registers (r46h
to r4Bh and r4Dh). Unlike the voltage input comparators, the temperature threshold comparators are 10 bits
wide. OVERT is the designated output for temperature
faults, although other outputs are programmed to
depend on temperature faults as well. See the
Programmable Inputs/Outputs section for more information on programming output dependencies. See the
Faults section for more information on setting temperature fault thresholds.
The remote temperature sensor amplifier detects a
short or open between DXP_ and DXN_. The detection
of these events is programmed to cause a fault.
Temperature thresholds and conversions are in a two’s
complement temperature format, where 1 LSB corresponds to 0.5°C. The data format for temperature conversions is illustrated in Table 5.
Offset and gain errors for remote temperature sensor
measurements are user-trimmed through gain registers
r19h[7:2]/r4Fh[5:0] and offset registers r1Bh[7:5]/r4D[6:4],
as shown in Tables 4 and 6. The gain value trims the
high (56µA) drive current source to compensate for the
n-factor of the remote diode. The offset value is multiplied by 4 and added to the conversion result numerically. The MAX16031/MAX16032 contain an internal
lowpass filter at DXN_ and DXP_ to reduce noise. See
the Miscellaneous Settings section for more information
on programming the filter cutoff frequency.
20
ADC conversion results are read from the ADC conversion registers through the I2C/SMBus-compatible or
JTAG interfaces (see Table 7). These registers are also
used for fault threshold comparison. Voltage monitoring
thresholds are compared with only the first 8 MSBs of
the conversion results.
Programmable Inputs/Outputs
The MAX16031 provides two general fault outputs,
FAULT1 and FAULT2, one reset output RESET, one
temperature fault output OVERT, one current fault output OVERC, two general-purpose inputs/outputs GPIO1
and GPIO2, and one SMBALERT#-compatible output
ALERT. The MAX16032 provides the same except
OVERC. All outputs are open drain and require pullup
resistors. Fault outputs do not latch except for OVERC,
which either latches or does not latch depending on the
configuration bit in r5Ch. Individual fault flag bits, however, latch (see the Faults section) and must be cleared
one bit at a time by writing a byte containing all zeros
except for a single ‘1’ in the bit to be cleared.
The general outputs, FAULT1 and FAULT2, are identical in functionality and are programmed to depend on
overvoltage, undervoltage, overtemperature, and overcurrent parameters. See r1Dh and r1Eh in Table 8 for
more detailed information regarding the general fault
output dependencies.
The reset output RESET provides many programmable
output dependencies as well as reset timeouts. See
r20h and r21h in Table 8 for detailed information on
RESET output dependencies and timeouts.
The temperature fault output OVERT indicates temperature-related faults. OVERT is programmed to depend
on any primary temperature threshold and/or the
remote diode open/short flags. OVERT latches low dur-
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MAX16031/MAX16032
Table 6. Temperature Sensor Fault Enable, Current-Sense Fault Enable, SMBALERT#
Enable, and Temperature Offset Trim
REGISTER
ADDRESS
1Bh
4Dh
EEPROM
MEMORY
ADDRESS
BIT RANGE
[0]
Internal Temperature Sensor Faults Enable:
0 = Internal temperature sensor faults disabled
1 = Internal temperature sensor faults enabled
[1]
Remote Temperature Sensor 1 Faults Enable:
0 = Remote temperature sensor 1 faults disabled
1 = Internal temperature sensor 1 faults enabled
[2]
Remote Temperature Sensor 2 Faults Enable:
0 = Remote temperature sensor 2 faults disabled
1 = Remote temperature sensor 2 faults enabled
[3]
Current-Sense Fault Enable:
0 = Current-sense faults disabled
1 = Current-sense faults enabled
[4]
SMBALERT# Enable (ALERT):
0 = SMBALERT# disabled
1 = SMBALERT# enabled
9Bh
CDh
DESCRIPTION
[7:5]
Remote Temperature Sensor 1 Offset Trim:
Offset = 4 × X, where X is the two’s-complement 3-bit temperature code
(1 LSB = 0.5°C). Since X is multiplied by 4, the offset LSB size is 2°C,
allowing a total offset adjustment of ±6°C.
[1:0]
Internal Temperature Sensor Primary Overtemperature Threshold LSB
[3:2]
Internal Temperature Sensor Secondary Overtemperature Threshold LSB
[6:4]
Remote Temperature Sensor 2 Offset Trim:
Offset = 4 × X, where X is the two’s-complement 3-bit temperature code
(1 LSB = 0.5°C). Since X is multiplied by 4, the offset LSB size is 2°C,
allowing a total offset adjustment of ±6°C.
[7]
Not used.
ing diode open/short fault conditions, and the corresponding diode open/short flags must be cleared to
release the latch. See r1Fh in Table 8 for more information on OVERT output dependencies.
The current fault output OVERC indicates overcurrent
events. OVERC only depends on the primary analog
overcurrent threshold. See the Current Monitoring section for more information about the current-sense amplifier and the primary threshold. The secondary overcurrent
threshold is set digitally and is used by other outputs.
The secondary threshold also has a programmable timeout option (see Miscellaneous Settings section).
GPIO1 and GPIO2 are programmable as logic inputs,
manual reset inputs, logic outputs, or fault dependent
outputs. See r22h–r25h in Table 8 for more detailed
information on GPIO1/GPIO2 functionality. GPIO1 and
GPIO2 assert low when configured as a fault output.
ALERT is an SMBALERT#-compatible fault interrupt
output. When enabled, it is logically ANDed with outputs RESET, FAULT1, FAULT2, OVERT, OVERC, and
GPIO1/GPIO2 (only if enabled as fault outputs). When
any fault output is asserted, ALERT also asserts, interrupting the SMBus master to query the fault. The master needs to answer MAX16031/MAX16032 with a
specific SMBus command (ARA) to retrieve the slave
address of the interrupting device. See the I2C/SMBusCompatible Serial Interface section for more details.
______________________________________________________________________________________
21
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 7. ADC Conversion Registers
22
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
00h
—
01h
—
02h
—
03h
—
04h
—
05h
—
06h
—
07h
—
08h
—
09h
—
0Ah
—
0Bh
—
0Ch
—
0Dh
—
0Eh
—
0Fh
—
10h
—
11h
—
12h
—
13h
—
14h
—
15h
—
16h
—
BIT RANGE
DESCRIPTION
[7:0]
IN1 ADC Conversion Result (MSB)
[1:0]
IN1 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN2 ADC Conversion Result (MSB)
[1:0]
IN2 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN3 ADC Conversion Result (MSB)
[1:0]
IN3 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN4 ADC Conversion Result (MSB)
[1:0]
IN4 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN5 ADC Conversion Result (MSB)
[1:0]
IN5 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN6 ADC Conversion Result (MSB)
[1:0]
IN6 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN7 ADC Conversion Result (MSB)
[1:0]
IN7 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
IN8 ADC Conversion Result (MSB)
[1:0]
IN8 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
Internal Temperature Sensor ADC Conversion Result (MSB)
[1:0]
Internal Temperature Sensor ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
Remote Temperature Sensor 1 ADC Conversion Result (MSB)
[1:0]
Remote Temperature Sensor 1 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
Remote Temperature Sensor 2 ADC Conversion Result (MSB)
[1:0]
Remote Temperature Sensor 2 ADC Conversion Result (LSB)
[7:2]
Reserved
[7:0]
Current-Sense ADC Conversion Result
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
REGISTER
ADDRESS
1Dh
1Eh
1Fh
EEPROM
MEMORY
ADDRESS
9Dh
9Eh
9Fh
BIT RANGE
DESCRIPTION
[0]
1 = FAULT1 depends on the secondary undervoltage thresholds of all enabled IN1–IN8.
[1]
1 = FAULT1 depends on the primary overvoltage thresholds of all enabled IN1–IN8.
[2]
1 = FAULT1 depends on the secondary overvoltage thresholds of all enabled IN1–IN8.
[3]
1 = FAULT1 depends on the secondary overtemperature threshold of the internal
temperature sensor.
[4]
1 = FAULT1 depends on the secondary overtemperature threshold of remote
temperature sensor 1.
[5]
1 = FAULT1 depends on the secondary overtemperature threshold of remote
temperature sensor 2.
[6]
1 = FAULT1 depends on the secondary overcurrent threshold.
[7]
Reserved
[0]
1 = FAULT2 depends on the secondary undervoltage thresholds of all enabled IN1–IN8.
[1]
1 = FAULT2 depends on the primary overvoltage thresholds of all enabled IN1–IN8.
[2]
1 = FAULT2 depends on the secondary overvoltage thresholds of all enabled IN1–IN8.
[3]
1 = FAULT2 depends on the secondary overtemperature threshold of the internal
temperature sensor.
[4]
1 = FAULT2 depends on the secondary overtemperature threshold of remote
temperature sensor 1.
[5]
1 = FAULT2 depends on the secondary overtemperature threshold of remote
temperature sensor 2.
[6]
1 = FAULT2 depends on the secondary overcurrent threshold.
[7]
Reserved
[0]
1 = OVERT depends on the primary overtemperature threshold of the internal
temperature sensor.
[1]
1 = OVERT depends on the primary overtemperature threshold of the remote
temperature sensor 1.
[2]
1 = OVERT depends on the primary overtemperature threshold of the remote
temperature sensor 2.
______________________________________________________________________________________
23
MAX16031/MAX16032
Table 8. Output Dependencies
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 8. Output Dependencies (continued)
REGISTER
ADDRESS
1Fh
20h
24
EEPROM
MEMORY
ADDRESS
9Fh
BIT RANGE
DESCRIPTION
[3]
1 = OVERT depends on the diode short flag of remote temperature sensor 1. OVERT
latches when the diode is shorted. Clear the latch by writing to r50h.
[4]
1 = OVERT depends on the diode open flag of remote temperature sensor 1. OVERT
latches when the diode is open. Clear the latch by writing to r50h.
[5]
1 = OVERT depends on the diode short flag of remote temperature sensor 2. OVERT
latches when the diode is shorted. Clear the latch by writing to r50h.
[6]
1 = OVERT depends on the diode open flag of remote temperature sensor 2. OVERT
latches when the diode is open. Clear the latch by writing to r50h.
[7]
Reserved
[2:0]
RESET Configuration:
000 = RESET has no dependencies; asserts during boot and boot-up timeout and then
deasserts indefinitely.
001 = RESET depends on the primary undervoltage thresholds at inputs that are
selected by r21h[7:0].
010 = RESET depends on the primary overvoltage thresholds at inputs that are selected
by r21h[7:0].
011 = RESET depends on both the primary undervoltage and overvoltage thresholds at
those inputs that are selected by r21h[7:0].
100 = RESET depends on the primary undervoltage thresholds at inputs that are
selected by r21h[7:0] and the internal temperature sensor primary overtemperature
threshold.
101 = RESET depends on both the primary undervoltage and overvoltage thresholds at
those inputs that are selected by r21h[7:0] and the internal temperature sensor primary
overtemperature threshold.
110 = RESET depends on the primary undervoltage thresholds at inputs that are
selected by r21h[7:0] and each internal/remote temperature sensor primary
overtemperature threshold.
111 = RESET depends on both the primary undervoltage and overvoltage thresholds at
those inputs that are selected by r21h[7:0] and each internal/remote temperature sensor
primary overtemperature threshold.
[5:3]
RESET Timeout:
000 = 25µs
001 = 2.5ms
010 = 10ms
011 = 40ms
100 = 160ms
101 = 640ms
110 = 1280ms
111 = 2560ms
[7:6]
Reserved
A0h
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
REGISTER
ADDRESS
21h
22h
EEPROM
MEMORY
ADDRESS
A1h
BIT RANGE
DESCRIPTION
[0]
1 = RESET depends on IN1 with thresholds defined by r20h[2:0].
[1]
1 = RESET depends on IN2 with thresholds defined by r20h[2:0].
[2]
1 = RESET depends on IN3 with thresholds defined by r20h[2:0].
[3]
1 = RESET depends on IN4 with thresholds defined by r20h[2:0].
[4]
1 = RESET depends on IN5 with thresholds defined by r20h[2:0].
[5]
1 = RESET depends on IN6 with thresholds defined by r20h[2:0].
[6]
1 = RESET depends on IN7 with thresholds defined by r20h[2:0].
[7]
1 = RESET depends on IN8 with thresholds defined by r20h[2:0].
[2:0]
GPIO1 Output Dependencies:
000 = GPIO1 is a digital input that is read from r22h[7].
001 = GPIO1 is a digital manual reset input that asserts RESET when asserted. The state
of GPIO1 is read from r22h[7].
010 = GPIO1 is a digital output that is written to through r22h[6].
011 = GPIO1 is a digital fault output that depends on conditions selected by r23h[6:0].
100 = GPIO1 is a digital output that depends on primary thresholds at the input selected
by r22h[5:3].
101 =GPIO1 is a digital output that depends on primary thresholds at the input selected
by r22h[5:3] and on conditions selected by r23h[6:0].
110 = Reserved
111 = Reserved
[5:3]
GPIO1 Single-Input Primary Threshold Voltage Monitor (r22h[2:0] = 100 or 101 only).
GPIO1 asserts low when any primary threshold of this input is exceeded:
000 = IN1
001 = IN2
010 = IN3
011 = IN4
100 = IN5
101 = IN6
110 = IN7
111 = IN8
A2h
[6]
GPIO1 Output (write to this bit):
1 = GPIO1 is set high if GPIO1 is configured as an output.
0 = GPIO1 is set low if GPIO1 is configured as an output.
[7]
GPIO1 Input State (read from this bit):
1 = Indicates that GPIO1 is high regardless if GPIO1 is set as an output or input.
0 = Indicates that GPIO1 is low regardless if GPIO1 is set as an output or input.
______________________________________________________________________________________
25
MAX16031/MAX16032
Table 8. Output Dependencies (continued)
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 8. Output Dependencies (continued)
REGISTER
ADDRESS
23h
24h
26
EEPROM
MEMORY
ADDRESS
A3h
BIT RANGE
DESCRIPTION
[0]
1 = GPIO1 depends on the secondary undervoltage thresholds of all enabled IN1–IN8.
[1]
1 = GPIO1 depends on the primary overvoltage thresholds of all enabled IN1–IN8.
[2]
1 = GPIO1 depends on the secondary overvoltage thresholds of all enabled IN1–IN8.
[3]
1 = GPIO1 depends on the secondary overtemperature threshold of the internal
temperature sensor.
[4]
1 = GPIO1 depends on the secondary overtemperature threshold of remote temperature
sensor 1.
[5]
1 = GPIO1 depends on the secondary overtemperature threshold of remote temperature
sensor 2.
[6]
1 = GPIO1 depends on the secondary overcurrent threshold.
[7]
Reserved
[2:0]
GPIO2 Output Dependencies:
000 = GPIO2 is a digital input that is read from r24h[7].
001 = GPIO2 is a digital manual reset input that asserts RESET when asserted. The state
of GPIO2 is read from r24h[7].
010 = GPIO2 is a digital output that is written to through r24h[6].
011 = GPIO2 is a digital fault output that depends on conditions selected by r25h[6:0].
100 = GPIO2 is a digital output that depends on primary thresholds at the input selected
by r24h[5:3].
101 = GPIO2 is a digital output that depends on primary thresholds at the input selected
by r24h[5:3] and on conditions selected by r25h[6:0].
110 = Reserved
111 = Reserved
[5:3]
GPIO2 Single-Input Primary Threshold Voltage Monitor (r24h[2:0] = 100 or 101 only).
GPIO2 asserts low when the primary threshold of this input is exceeded:
000 = IN1
001 = IN2
010 = IN3
011 = IN4
100 = IN5
101 = IN6
110 = IN7
111 = IN8
A4h
[6]
GPIO2 Output (write to this bit):
1 = GPIO2 is set high if GPIO2 is configured as an output.
0 = GPIO2 is set low if GPIO2 is configured as an output.
[7]
GPIO2 Input (read from this bit):
1 = Indicates that GPIO2 is high regardless if GPIO2 is set as an output or input.
0 = Indicates that GPIO2 is low regardless if GPIO2 is set as an output or input.
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
REGISTER
ADDRESS
25h
EEPROM
MEMORY
ADDRESS
BIT RANGE
A5h
DESCRIPTION
[0]
1 = GPIO2 depends on the secondary undervoltage thresholds of all enabled IN1–IN8.
[1]
1 = GPIO2 depends on the primary overvoltage thresholds of all enabled IN1–IN8.
[2]
1 = GPIO2 depends on the secondary overvoltage thresholds of all enabled IN1–IN8.
[3]
1 = GPIO2 depends on the secondary overtemperature threshold of the internal
temperature sensor.
[4]
1 = GPIO2 depends on the secondary overtemperature threshold of remote temperature
sensor 1.
[5]
1 = GPIO2 depends on the secondary overtemperature threshold of remote temperature
sensor 2.
[6]
1 = GPIO2 depends on the secondary overcurrent threshold.
[7]
Reserved
Faults
The MAX16031/MAX16032 offer many configurable
options for detecting and managing system faults. Fault
thresholds are set in r26h–r4Eh, as shown in Table 9.
Any threshold that is configured to cause a fault can be
masked at any time from causing a fault by setting bits
in r54h–r57h, as shown in Table 10. Fault flags indicate
the fault status of a particular input. The fault flag of any
monitored input in the device can be read at any time
from r50h–r53h, as shown in Table 11. Clear a fault flag
by writing a ‘1’ to the appropriate bit in the flag register.
Table 9. Fault Thresholds
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
26h
A6h
[7:0]
IN1 Primary Undervoltage Threshold
27h
A7h
[7:0]
IN1 Primary Overvoltage Threshold
28h
A8h
[7:0]
IN1 Secondary Undervoltage Threshold
29h
A9h
[7:0]
IN1 Secondary Overvoltage Threshold
2Ah
AAh
[7:0]
IN2 Primary Undervoltage Threshold
DESCRIPTION
2Bh
ABh
[7:0]
IN2 Primary Overvoltage Threshold
2Ch
ACh
[7:0]
IN2 Secondary Undervoltage Threshold
2Dh
ADh
[7:0]
IN2 Secondary Overvoltage Threshold
2Eh
AEh
[7:0]
IN3 Primary Undervoltage Threshold
2Fh
AFh
[7:0]
IN3 Primary Overvoltage Threshold
30h
B0h
[7:0]
IN3 Secondary Undervoltage Threshold
31h
B1h
[7:0]
IN3 Secondary Overvoltage Threshold
32h
B2h
[7:0]
IN4 Primary Undervoltage Threshold
33h
B3h
[7:0]
IN4 Primary Overvoltage Threshold
______________________________________________________________________________________
27
MAX16031/MAX16032
Table 8. Output Dependencies (continued)
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 9. Fault Thresholds (continued)
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
34h
B4h
[7:0]
IN4 Secondary Undervoltage Threshold
35h
B5h
[7:0]
IN4 Secondary Overvoltage Threshold
36h
B6h
[7:0]
IN5 Primary Undervoltage Threshold
37h
B7h
[7:0]
IN5 Primary Overvoltage Threshold
38h
B8h
[7:0]
IN5 Secondary Undervoltage Threshold
39h
B9h
[7:0]
IN5 Secondary Overvoltage Threshold
3Ah
BAh
[7:0]
IN6 Primary Undervoltage Threshold
3Bh
BBh
[7:0]
IN6 Primary Overvoltage Threshold
3Ch
BCh
[7:0]
IN6 Secondary Undervoltage Threshold
3Dh
BDh
[7:0]
IN6 Secondary Overvoltage Threshold
3Eh
BEh
[7:0]
IN7 Primary Undervoltage Threshold
3Fh
BFh
[7:0]
IN7 Primary Overvoltage Threshold
40h
C0h
[7:0]
IN7 Secondary Undervoltage Threshold
41h
C1h
[7:0]
IN7 Secondary Overvoltage Threshold
42h
C2h
[7:0]
IN8 Primary Undervoltage Threshold
43h
C3h
[7:0]
IN8 Primary Overvoltage Threshold
44h
C4h
[7:0]
IN8 Secondary Undervoltage Threshold
45h
C5h
[7:0]
IN8 Secondary Overvoltage Threshold
46h
C6h
[7:0]
Internal Temperature Sensor Primary Overtemperature Threshold MSB (2 LSBs are in
r4Dh[1:0]).
47h
C7h
[7:0]
Internal Temperature Sensor Secondary Overtemperature Threshold MSB (2 LSBs are
in r4Dh[3:2]).
48h
C8h
[7:0]
Remote Temperature Sensor 1 Primary Overtemperature Threshold MSB (2 LSBs are
in r4Eh[1:0]).
49h
C9h
[7:0]
Remote Temperature Sensor 1 Secondary Overtemperature Threshold MSB (2 LSBs
are in r4Eh[3:2]).
4Ah
CAh
[7:0]
Remote Temperature Sensor 2 Primary Overtemperature Threshold MSB (2 LSBs are
in r4Eh[5:4]).
4Bh
CBh
[7:0]
Remote Temperature Sensor 2 Secondary Overtemperature Threshold MSB (2 LSBs
are in r4Eh[7:6]).
4Ch
CCh
4Dh
CDh
[7:0]
Current-Sense Secondary Threshold
[1:0]
[3:2]
[6:4]
Internal Temperature Sensor Primary Overtemperature Threshold LSB
Internal Temperature Sensor Secondary Overtemperature Threshold LSB
Remote Temperature Sensor 2, Offset Trim
[7]
4Eh
28
DESCRIPTION
CEh
Not used
[1:0]
Remote Temperature Sensor 1 Primary Overtemperature Threshold LSB
[3:2]
Remote Temperature Sensor 1 Secondary Overtemperature Threshold LSB
[5:3]
Remote Temperature Sensor 2 Primary Overtemperature Threshold LSB
[7:6]
Remote Temperature Sensor 2 Secondary Overtemperature Threshold LSB
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MAX16031/MAX16032
Table 10. Fault Masks
REGISTER
ADDRESS
54h
EEPROM
MEMORY
ADDRESS
D4h
BIT
RANGE
[0]
1 = Short-circuit detection at remote temperature sensor 1 is masked.
[1]
1 = Open-circuit detection at remote temperature sensor 1 is masked.
[2]
1 = Short-circuit detection at remote temperature sensor 2 is masked.
[3]
1 = Open-circuit detection at remote temperature sensor 2 is masked.
[7:4]
55h
56h
57h
D5h
D6h
D7h
DESCRIPTION
Not used.
[0]
1 = IN1 primary overvoltage and undervoltage faults are masked.
[1]
1 = IN2 primary overvoltage and undervoltage faults are masked.
[2]
1 = IN3 primary overvoltage and undervoltage faults are masked.
[3]
1 = IN4 primary overvoltage and undervoltage faults are masked.
[4]
1 = IN5 primary overvoltage and undervoltage faults are masked.
[5]
1 = IN6 primary overvoltage and undervoltage faults are masked.
[6]
1 = IN7 primary overvoltage and undervoltage faults are masked.
[7]
1 = IN8 primary overvoltage and undervoltage faults are masked.
[0]
1 = IN1 secondary overvoltage and undervoltage faults are masked.
[1]
1 = IN2 secondary overvoltage and undervoltage faults are masked.
[2]
1 = IN3 secondary overvoltage and undervoltage faults are masked.
[3]
1 = IN4 secondary overvoltage and undervoltage faults are masked.
[4]
1 = IN5 secondary overvoltage and undervoltage faults are masked.
[5]
1 = IN6 secondary overvoltage and undervoltage faults are masked.
[6]
1 = IN7 secondary overvoltage and undervoltage faults are masked.
[7]
1 = IN1 secondary overvoltage and undervoltage faults are masked.
[0]
1 = Internal temperature sensor primary overtemperature fault masked.
[1]
1 = Remote temperature sensor 1 primary overtemperature fault masked.
[2]
1 = Remote temperature sensor 2 primary overtemperature fault masked.
[3]
1 = Internal temperature sensor secondary overtemperature fault masked.
[4]
1 = Remote temperature sensor 1 secondary overtemperature fault masked.
[5]
1 = Remote temperature sensor 2 secondary overtemperature fault masked.
[6]
1 = Current-sense primary overcurrent fault masked.
[7]
1 = Current-sense secondary overcurrent fault masked.
______________________________________________________________________________________
29
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 11. Fault Flags
REGISTER
ADDRESS
50h
EEPROM
MEMORY
ADDRESS
D0h
BIT
RANGE
[0]
1 = Short circuit detected at remote temperature sensor 1.
[1]
1 = Open circuit detected at remote temperature sensor 1.
[2]
1 = Short circuit detected at remote temperature sensor 2.
[3]
1 = Open circuit detected at remote temperature sensor 2.
[7:4]
51h
52h
53h
30
D1h
D2h
D3h
DESCRIPTION
Not used.
[0]
1 = IN1 conversion result exceeds primary overvoltage or undervoltage thresholds.
[1]
1 = IN2 conversion result exceeds primary overvoltage or undervoltage thresholds.
[2]
1 = IN3 conversion result exceeds primary overvoltage or undervoltage thresholds.
[3]
1 = IN4 conversion result exceeds primary overvoltage or undervoltage thresholds.
[4]
1 = IN5 conversion result exceeds primary overvoltage or undervoltage thresholds.
[5]
1 = IN6 conversion result exceeds primary overvoltage or undervoltage thresholds.
[6]
1 = IN7 conversion result exceeds primary overvoltage or undervoltage thresholds.
[7]
1 = IN8 conversion result exceeds primary overvoltage or undervoltage thresholds.
[0]
1 = IN1 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[1]
1 = IN2 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[2]
1 = IN3 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[3]
1 = IN4 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[4]
1 = IN5 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[5]
1 = IN6 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[6]
1 = IN7 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[7]
1 = IN8 conversion result exceeds secondary overvoltage or undervoltage thresholds.
[0]
1 = Internal temperature sensor conversion exceeds its primary overtemperature threshold.
[1]
1 = Remote temperature sensor 1 conversion exceeds its primary overtemperature threshold.
[2]
1 = Remote temperature sensor 2 conversion exceeds its primary overtemperature threshold.
[3]
1 = Internal temperature sensor conversion exceeds its secondary overtemperature threshold.
[4]
1 = Remote temperature sensor 1 conversion exceeds its secondary overtemperature
threshold.
[5]
1 = Remote temperature sensor 2 conversion exceeds its secondary overtemperature
threshold.
[6]
1 = Current-sense conversion exceeds its primary overcurrent threshold.
[7]
1 = Current-sense conversion exceeds its secondary overcurrent threshold.
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MAX16031/MAX16032
Table 12. Fault Log Dependency
REGISTER
ADDRESS
58h
59h
5Ah
EEPROM
BIT
MEMORY
RANGE
ADDRESS
D8h
D9h
DAh
DESCRIPTION
[0]
1 = Fault log triggered when IN1 is below its primary undervoltage threshold.
[1]
1 = Fault log triggered when IN2 is below its primary undervoltage threshold.
[2]
1 = Fault log triggered when IN3 is below its primary undervoltage threshold.
[3]
1 = Fault log triggered when IN4 is below its primary undervoltage threshold.
[4]
1 = Fault log triggered when IN5 is below its primary undervoltage threshold.
[5]
1 = Fault log triggered when IN6 is below its primary undervoltage threshold.
[6]
1 = Fault log triggered when IN7 is below its primary undervoltage threshold.
[7]
1 = Fault log triggered when IN8 is below its primary undervoltage threshold.
[0]
1 = Fault log triggered when IN1 is above its primary overvoltage threshold.
[1]
1 = Fault log triggered when IN2 is above its primary overvoltage threshold.
[2]
1 = Fault log triggered when IN3 is above its primary overvoltage threshold.
[3]
1 = Fault log triggered when IN4 is above its primary overvoltage threshold.
[4]
1 = Fault log triggered when IN5 is above its primary overvoltage threshold.
[5]
1 = Fault log triggered when IN6 is above its primary overvoltage threshold.
[6]
1 = Fault log triggered when IN7 is above its primary overvoltage threshold.
[7]
1 = Fault log triggered when IN8 is above its primary overvoltage threshold.
[0]
1 = Fault log triggered when current sense is above its primary overcurrent threshold.
[1]
1 = Fault log triggered when internal temperature sensor is above its overtemperature threshold.
[2]
1 = Fault log triggered when remote temperature sensor 1 is above its overtemperature threshold.
[3]
1 = Fault log triggered when remote temperature sensor 2 is above its overtemperature threshold.
[7:4]
Not used.
Fault Logging
If a specific input threshold is critical to the operation of
the system, an automatic fault log is configured to trigger a transfer of fault information to EEPROM. The fault
log dependencies are configured through r58h–r5Ah,
as shown in Table 12. Logged fault information is read
from EEPROM locations r80h–r8Eh, as shown in Table
13. Once a fault log event occurs, the fault log feature
is locked and must be reset to enable a new fault log to
be stored. Write a ‘1’ to r5Fh[1] to reset the fault log.
Fault information always contains the fault flag registers
and is configured to also include the ADC result registers through r5Ch[7] (see the Miscellaneous Settings
section). All stored ADC results are the 8 MSBs of the
result.
Miscellaneous Settings
Table 14 shows several miscellaneous programmable
items. Register r5Bh contains boot-up timeout and
remote temperature sensor filter cutoff settings.
Register r5Ch[1:0] sets the secondary overcurrent
threshold timeout, which is the amount of delay after an
overcurrent condition before the overcurrent condition
becomes a fault. All voltage thresholds include two
selectable hysteresis options programmed by r5Ch[5].
When r5Ch[6] = 1, the conditions programmed to
cause a fault log event must happen for two consecutive ADC cycles rather than just one to provide an
improvement in noise immunity. Register r5Ch[7] controls whether the ADC result registers are stored in
EEPROM after a fault log. Register r5Eh provides storage space for a user-defined configuration or firmware
version number. Register r5Fh[0] locks and unlocks the
EEPROM and register set. Register r5Fh[1] indicates
whether a fault log event occurred and the corresponding fault information is locked in EEPROM. Further fault
log conditions will not write new fault information to the
fault EEPROM until a ‘1’ is written to r5Fh[1].
______________________________________________________________________________________
31
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 13. Fault Log EEPROM
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
—
80h
[7:0]
Copy of r51h[7:0] at the time the fault log was triggered.
—
81h
[7:0]
Copy of r52h[7:0] at the time the fault log was triggered.
—
82h
[7:0]
Copy of r53h[7:0] at the time the fault log was triggered.
—
83h
[7:0]
IN1 conversion result at the time the fault log was triggered.
—
84h
[7:0]
IN2 conversion result at the time the fault log was triggered. 8 MSBs only.
—
85h
[7:0]
IN3 conversion result at the time the fault log was triggered. 8 MSBs only.
—
86h
[7:0]
IN4 conversion result at the time the fault log was triggered. 8 MSBs only.
—
87h
[7:0]
IN5 conversion result at the time the fault log was triggered. 8 MSBs only.
—
88h
[7:0]
IN6 conversion result at the time the fault log was triggered. 8 MSBs only.
—
89h
[7:0]
IN7 conversion result at the time the fault log was triggered. 8 MSBs only.
—
8Ah
[7:0]
IN8 conversion result at the time the fault log was triggered. 8 MSBs only.
DESCRIPTION
—
8Bh
[7:0]
Internal temperature sensor conversion result at the time the fault log was triggered.
8 MSBs from 10-bit ADC conversion.
—
8Ch
[7:0]
Remote temperature sensor 1 conversion result at the time the fault log was triggered.
8 MSBs from 10-bit ADC conversion.
—
8Dh
[7:0]
Remote temperature sensor 2 conversion result at the time the fault log was triggered.
8 MSBs from 10-bit ADC conversion.
—
8Eh
[7:0]
Current-sense conversion result at the time the fault log was triggered.
I2C/SMBus-Compatible Serial Interface
The MAX16031/MAX16032 feature an I2C/SMBus-compatible 2-wire (SDA and SCL) serial interface for communication with a master device. All possible
communication formats are shown in Figure 5. The
slave address and SMBALERT# are described further
in the following subsections. Figure 1 shows a detailed
2-wire interface timing diagram. For descriptions of the
I2C and SMBus protocol and terminology, refer to the
I 2 C-Bus Specification Version 2.1 and the System
Management Bus (SMBus) Specification Version 2.0.
The MAX16031/MAX16032 allow 2-wire communication
up to 400kHz. SDA and SCL require external pullup
resistors.
Slave Address
The slave address inputs, A0 and A1, are each capable of detecting three different states, allowing nine
identical devices to share the same serial bus. Connect
A0 and A1 to GND, DBP, or leave as not connected
(N.C.). See Table 15 for a listing of all possible 7-bit
address input connections and their corresponding
serial-bus addresses.
32
SMBALERT#
SMBALERT# is an optional interrupt signal defined in
Appendix A of the SMBus Specification. The
MAX16031/MAX16032 provide output ALERT as this
interrupt signal. If enabled, ALERT asserts if any one of
the following outputs asserts: FAULT1, FAULT2,
RESET, OVERT, or OVERC. Additionally, if a GPIO_ is
configured for a fault output, a fault at this output also
causes ALERT to assert. ALERT deasserts when all
fault conditions are removed (i.e., when all fault outputs
are high).
Typically ALERT is connected to all other SMBALERT#
open-drain signals in the system, creating a wired-OR
function with all SMBALERT# outputs. When the master
is interrupted by its SMBALERT# input, it stops or finishes the current bus transfer and places an alert
response address (ARA) on the bus. The slave that
pulled the SMBALERT# signal low acknowledges the
ARA and places its own address on the bus, identifying
itself to the master as the slave that caused the interrupt. The 7-bit ARA is ‘0001100’ and the R/W bit is a
don’t care.
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
S
ADDRESS
7 bits
Receive Byte Format
R/W ACK
0
COMMAND
ACK
P
ADDRESS
S
8 bits
Slave Address: Address
of the slave on the serial
interface bus.
ADDRESS
7 bits
R/W ACK
7 bits
DATA
1
NACK
P
8 bits
Slave Address: Address
of the slave on the serial
interface bus.
Data Byte: Presets the internal
address pointer or represents
a command.
Write Byte Format
S
MAX16031/MAX16032
Send Byte Format
Data Byte: Data is read from
the location pointed to by the
internal address pointer.
SMBALERT#
R/W ACK
0
COMMAND
ACK
DATA
8 bits
Slave Address: Address
of the slave on the serial
interface bus.
ACK
P
S
8 bits
Data Byte: Data is written to
the locations set by the
internal address pointer.
Command Byte:
Sets the internal
address pointer.
ADDRESS
R/W ACK
0001100
D.C.
Alert Response Address:
Only the device that
interrupted the master
responds to this address.
DATA
NACK
P
8 bits
Slave Address: Slave places
its own address on the
serial bus.
Read Byte Format
S
SLAVE
ADDRESS
7 bits
R/W ACK
0
COMMAND
ACK
SR
SLAVE
ADDRESS
8 bits
Slave Address: Address
of the slave on the serial
interface bus.
7 bits
R/W ACK
DATA BYTE NACK
P
8 bits
1
Data Byte: Data is written to
the locations set by the
internal address pointer.
Command Byte:
Sets the internal
address pointer.
Block Write Format
S
ADDRESS
7 bits
WR ACK
0
COMMAND
ACK
BYTE
COUNT = N
8 bits
Slave Address: Address
of the slave on the
serial interface bus.
ACK DATA BYTE 1 ACK DATA BYTE … ACK DATA BYTE N ACK
8 bits
8 bits
Command Byte:
FAh
8 bits
Slave to master
P
8 bits
Master to slave
Data Byte: Data is written to the locations
set by the internal address pointer.
Block Read Format
S
ADDRESS
7 bits
WR ACK
0
COMMAND
8 bits
Slave Address: Address
of the slave on the
serial interface bus.
S = START Condition
P = STOP Condition
Sr = Repeated START Condition
D.C. = Don’t Care
Command Byte:
FBh
ACK
SR
ADDRESS
7 bits
WR ACK
BYTE
COUNT = N
1
Slave Address: Address
of the slave on the
serial interface bus.
8 bits
ACK DATA BYTE N ACK DATA BYTE … ACK DATA BYTE N NACK
8 bits
8 bits
P
8 bits
Data Byte: Data is read from the locations
set by the internal address pointer.
ACK = Acknowledge, SDA pulled low during rising edge of SCL.
NACK = Not acknowledge, SDA left high during rising edge of SCL.
All data is clocked in/out of the device on rising edges of SCL.
= SDA transitions from high to low during period of SCL.
= SDA transitions from low to high during period of SCL.
Figure 5. Communication Formats
______________________________________________________________________________________
33
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 14. Miscellaneous Settings
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT
RANGE
[3:0]
5Bh
DBh
[6:4]
[7]
[1:0]
5Ch
DCh
[2]
[4:3]
[5]
34
DESCRIPTION
Postboot Timeout (all faults and outputs masked):
0h = No timeout
1h = 0.974ms
2h = 2.030ms
3h = 3.978ms
4h = 8.038ms
5h = 15.99ms
6h = 31.99ms
7h = 63.99ms
8h = 128ms
9h = 256.0ms
Ah = 512ms
Bh = 1024ms
Ch = 2048ms
Dh = 4096ms
Eh = 8192ms
Fh = 16384ms
Temperature Sensor Lowpass Filter Cutoff:
000 = No filter
001 = 2.53Hz
010 = 5.06Hz
011 = 10.1Hz
100 = 20.2Hz
101 = 40.5Hz
110 = 81Hz
111 = 162Hz
Not used.
Overcurrent Secondary Threshold Timeout:
00 = No delay
01 = 3.98ms
10 = 16ms
11 = 64ms
Latch OVERC:
0 = No latch
1 = Latched after assertion
Not used.
Threshold Hysteresis (all thresholds):
0 = 0.78%
1 = 1.17%
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
REGISTER
ADDRESS
5Ch
5Eh
EEPROM
MEMORY
ADDRESS
BIT
RANGE
[6]
Consecutive Faults on Primary Thresholds:
0 = Fault occurs after primary threshold is exceeded one time (normal operation).
1 = Fault occurs after primary threshold is exceeded twice.
[7]
Fault Log ADC Conversions Option:
0 = When a fault log is triggered, only fault flags are saved in EEPROM.
1 = When a fault log is triggered, fault flags and ADC conversion results (8 MSBs) are
saved in EEPROM.
DCh
DEh
[7:0]
[0]
5Fh
DESCRIPTION
DFh
[1]
[7:2]
Firmware Version. 8 bits of memory for user-defined firmware version number.
Configuration Lock:
Write a ‘1’ to r5Fh[0] to toggle this register bit.
0 = Register and EEPROM configuration unlocked.
1 = Register and EEPROM configuration locked.
Fault Log EEPROM Lock Flag (set automatically after fault log is triggered):
Write a ‘1’ to r5Fh[1] to toggle this register bit.
0 = EEPROM is not locked. A triggered fault log stores fault information to EEPROM.
1 = A fault log has been triggered. Write a ‘1’ to this bit to clear the flag and allow a
new fault log to be triggered.
Not used.
Table 15. Setting the I2C/SMBus Slave
Address
A1
A0
BUS ADDRESS
GND
GND
0011000
GND
N.C.
0011001
GND
DBP
0011010
N.C.
GND
0101001
N.C.
N.C.
0101010
N.C.
DBP
0101011
DBP
GND
1001100
DBP
N.C.
1001111
DBP
DBP
1001110
Special Commands
The MAX16031/MAX16032 provide software reboot and
fault log commands. A software reboot initiates the
boot-up sequence, which normally occurs at POR.
During boot-up, EEPROM configuration data is copied
to registers. To initiate a software reboot, send 0xFC
using the send byte format. A software-initiated fault log
is functionally the same as a hardware-initiated fault
log. During a fault log, ADC registers and fault information are logged in EEPROM. To trigger a software initiated fault log, send 0xFD using the send byte format.
JTAG Serial Interface
The MAX16031/MAX16032 contain an IEEE 1149.1- compliant JTAG port in addition to the I2C/SMBus-compatible
serial bus. Either interface may be used to access internal
memory; however, only one interface is allowed to run at
a time. All digital I/Os on the MAX16031/MAX16032 are
IEEE 1149.1 boundary-scan compliant, and contain the
typical JTAG boundary scan cells that allow the
inputs/outputs to be polled or forced high/low using standard JTAG instructions. The MAX16031/MAX16032 contain extra JTAG instructions and registers not included in
the JTAG specification that provide access to internal
memory. The extra instructions are: LOAD ADDRESS,
WRITE, READ, REBOOT, SAVE, and USERCODE. The
extra registers are: memory address, memory write,
memory read, and user-code data. See Figure 6 for a
block diagram of the JTAG interface.
Test Access Port (TAP) Controller State Machine
The TAP controller is a finite state machine that
responds to the logic level at TMS on the rising edge of
TCK. See Figure 7 for a diagram of the finite state
machine.
Test-Logic-Reset: At power-up, the TAP controller is in
the test-logic-reset state. The instruction register contains the IDCODE instruction. All system logic of the
device operates normally.
______________________________________________________________________________________
35
MAX16031/MAX16032
Table 14. Miscellaneous Settings (continued)
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
REGISTERS
AND EEPROM
01101
01100
MEMORY WRITE REGISTER
[LENGTH = 8 BITS]
01010
MEMORY READ REGISTER
[LENGTH = 8 BITS]
01001
MEMORY ADDRESS REGISTER
[LENGTH = 8 BITS]
01000
BOUNDARY SCAN REGISTER
[LENGTH = 198 BITS]
00001
00010
USER CODE REGISTER
[LENGTH = 32 BITS]
00100
IDENTIFICATION REGISTER
[LENGTH = 32 BITS]
00000
BYPASS REGISTER
[LENGTH = 1 BIT]
11111
MUX 1
COMMAND
DECODER
01101
01100
SAVE
REBOOT
VDBP
INSTRUCTION REGISTER
[LENGTH = 5 BITS]
RPU
MUX 2
TDI
TMS
TCK
TDO
TEST ACCESS PORT
(TAP) CONTROLLER
Figure 6. JTAG Block Diagram
Run-Test/Idle: The run-test/idle state is used between
scan operations or during specific tests. The instruction
register and test data registers remain idle.
Select-DR-Scan: All test data registers retain their previous state. With TMS low, a rising edge of TCK moves
the controller into the capture-DR state and initiates a
scan sequence. TMS high during a rising edge on TCK
moves the controller to the select-IR-scan state.
Capture-DR: Data are parallel-loaded into the test data
registers selected by the current instruction. If the instruction does not call for a parallel load or the selected test
data register does not allow parallel loads, the test data
register remains at its current value. On the rising edge of
TCK, the controller goes to the shift-DR state if TMS is low
or it goes to the exit1-DR state if TMS is high.
36
Shift-DR: The test data register selected by the current
instruction is connected between TDI and TDO and
shifts data one stage toward its serial output on each
rising edge of TCK while TMS is low. On the rising edge
of TCK, the controller goes to the exit1-DR state if TMS
is high.
Exit1-DR: While in this state, a rising edge on TCK puts
the controller in the update-DR state. A rising edge on
TCK with TMS low puts the controller in the pause-DR
state.
Pause-DR: Shifting of the test data registers is halted
while in this state. All test data registers retain their previous state. The controller remains in this state while
TMS is low. A rising edge on TCK with TMS high puts
the controller in the exit2-DR state.
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MAX16031/MAX16032
1
TEST-LOGIC-RESET
0
0
RUN-TEST/IDLE
1
SELECT-DR-SCAN
1
SELECT-IR-SCAN
0
1
0
1
CAPTURE-DR
CAPTURE-IR
0
0
SHIFT-DR
1
1
EXIT1-DR
1
EXIT1-IR
0
0
PAUSE-DR
PAUSE-IR
0
1
0
1
0
EXIT2-DR
EXIT2-IR
1
1
UPDATE-DR
1
0
SHIFT-IR
0
1
0
1
UPDATE-IR
0
1
0
Figure 7. TAP Controller State Diagram
Exit2-DR: A rising edge on TCK with TMS high while in
this state puts the controller in the update-DR state. A
rising edge on TCK with TMS low enters the Shift-DR
state.
Update-DR: A falling edge on TCK while in the updateDR state latches the data from the shift register path of
the test data registers into a set of output latches. This
prevents changes at the parallel output because of
changes in the shift register. On the rising edge of TCK,
the controller goes to the run-test/idle state if TMS is
low or it goes to the select-DR-scan state if TMS is high.
Select-IR-Scan: All test data registers retain their previous state. The instruction register remains unchanged
during this state. With TMS low, a rising edge on TCK
moves the controller into the capture-IR state. TMS high
during a rising edge on TCK puts the controller back
into the test-logic-reset state.
Capture-IR: Use the capture-IR state to load the shift
register in the instruction register with a fixed value.
This value is loaded on the rising edge of TCK. If TMS
is high on the rising edge of TCK, the controller enters
the exit1-IR state. If TMS is low on the rising edge of
TCK, the controller enters the shift-IR state.
Shift-IR: In this state, the shift register in the instruction
register is connected between TDI and TDO and shifts
data one stage for every rising edge of TCK toward the
TDO serial output while TMS is low. The parallel outputs
of the instruction register as well as all test data registers remain at their previous states. A rising edge on
TCK with TMS high moves the controller to the exit1-IR
state. A rising edge on TCK with TMS low keeps the
controller in the shift-IR state while moving data one
stage through the instruction shift register.
______________________________________________________________________________________
37
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Exit1-IR: A rising edge on TCK with TMS low puts the
controller in the pause-IR state. If TMS is high on the rising edge of TCK, the controller enters the update-IR state.
Pause-IR: Shifting of the instruction shift register is halted temporarily. With TMS high, a rising edge on TCK
puts the controller in the exit2-IR state. The controller
remains in the pause-IR state if TMS is low during a rising edge on TCK.
Exit2-IR: A rising edge on TCK with TMS high puts the
controller in the update-IR state. The controller loops
back to shift-IR if TMS is low during a rising edge of
TCK in this state.
Update-IR: The instruction code that has been shifted
into the instruction shift register is latched to the parallel
outputs of the instruction register on the falling edge of
TCK as the controller enters this state. Once latched,
this instruction becomes the current instruction. A rising
edge on TCK with TMS low puts the controller in the
run-test/idle state. With TMS high, the controller enters
the select-DR-scan state.
Instruction Register
The instruction register contains a shift register as well
as a latched parallel output and is 5 bits in length.
When the TAP controller enters the shift-IR state, the
instruction shift register is connected between TDI and
TDO. While in the shift-IR state, a rising edge on TCK with
TMS low shifts the data one stage toward the serial output
at TDO. A rising edge on TCK in the exit1-IR state or the
exit2-IR state with TMS high moves the controller to the
update-IR state. The falling edge of that same TCK latches the data in the instruction shift register to the instruction register parallel output. Instructions supported by the
MAX16031/MAX16032 and their respective operational
binary codes are shown in Table 16.
SAMPLE/PRELOAD: This is a mandatory instruction
for the IEEE 1149.1 specification that supports two
functions. The digital I/Os of the device are sampled at
the boundary scan test data register without interfering
with the normal operation of the device by using the
capture-DR state. SAMPLE/PRELOAD also allows the
device to shift data into the boundary scan test data
register through TDI using the shift-DR state.
BYPASS: When the BYPASS instruction is latched into
the instruction register, TDI connects to TDO through
the 1-bit bypass test data register. This allows data to
pass from DTDI to TDO without affecting the device’s
normal operation.
EXTEST: This instruction allows testing of all interconnections to the device. When the EXTEST instruction is
latched in the instruction register, the following actions
occur. Once enabled through the update-IR state, the
parallel outputs of all digital outputs are driven. The
boundary scan test data register is connected between
TDI and TDO. The capture-DR samples all digital inputs
into the boundary scan test data register.
IDCODE: When the IDCODE instruction is latched into
the parallel instruction register, the identification test
data register is selected. The device identification code
is loaded into the identification test data register on the
rising edge of TCK following entry into the capture-DR
state. Shift-DR is used to shift the identification code
out serially through TDO. During test-logic-reset, the
identification code is forced into the instruction register.
The ID code always has a 1 in the LSB position. The
next 11 bits identify the manufacturer’s JEDEC number
and number of continuation bytes followed by 16 bits
for the device and 4 bits for the version. See Table 17.
Table 16. JTAG Instruction Set
38
INSTRUCTION
BINARY CODE
BYPASS
11111
Bypass
SELECTED REGISTER/ACTION
IDCODE
00000
Identification
SAMPLE/PRELOAD
00001
Boundary scan
EXTEST
00010
Boundary scan
USERCODE
00100
User-code data
LOAD ADDRESS
01000
Memory address
READ DATA
01001
Memory read
WRITE DATA
01010
Memory write
REBOOT
01100
Resets the device
SAVE
01101
Stores current fault information in EEPROM
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
MSB
LSB
Version (4 bits)
Device ID (16 bits)
Manufacturer ID (11 bits)
Fixed value (1 bit)
0000
0000000000000001
00011001011
1
Table 18. 32-Bit User-Code Data
MSB
D.C. (don’t cares)
I2C/SMBus
Slave Address
User identification
(firmware version)
00000000000000000
See Table 15
r5Eh[7:0] contents
USERCODE: When the USERCODE instruction is
latched into the parallel instruction register, the usercode data register is selected. The device user code is
loaded into the user-code data register on the rising
edge of TCK following entry into the capture-DR state.
Shift-DR is used to shift the user code out serially
through TDO. See Table 18.
LOAD ADDRESS: This is an extension to the standard
IEEE 1149.1 instruction set to support access to the
memory in the MAX16031/MAX16032. When the LOAD
ADDRESS instruction is latched into the instruction register, TDI connects to TDO through the 8-bit memory
address test data register during the shift-DR state.
READ: This is an extension to the standard IEEE
1149.1 instruction set to support access to the memory
in the MAX16031/MAX16032. When the READ instruction is latched into the instruction register, TDI connects
to TDO through the 8-bit memory read test data register
during the shift-DR state.
WRITE: This is an extension to the standard IEEE
1149.1 instruction set to support access to the memory
in the MAX16031/MAX16032. When the WRITE instruction is latched into the instruction register, TDI connects
to TDO through the 8-bit memory write test data register during the shift-DR state.
REBOOT: This is an extension to the standard IEEE
1149.1 instruction set to initiate a software-controlled
reset to the MAX16031/MAX16032. When the REBOOT
instruction is latched into the instruction register, the
MAX16031/MAX16032 reset and immediately begin
their boot-up sequence.
SAVE: This is an extension to the standard IEEE 1149.1
instruction set that triggers a fault log. When the SAVE
instruction is latched into the instruction register, the
MAX16031/MAX16032 copy fault information from registers to EEPROM.
Boundary Scan
The boundary scan feature allows access to all the digital I/O connections of the MAX16031/MAX16032. If the
sample/preload or the EXTEST instruction is loaded into
the instruction register, TDI connects to TDO through
the 198-bit boundary scan register. Each digital I/O pin
corresponds to 1 bit (or 2 bits, in the case of the A0
and A1 pins) of the boundary scan register. The rest of
the boundary scan bits are reserved and are loaded
with zeros.
When the sample/preload instruction is executed, the
current state of the digital outputs is latched into the
boundary scan register and is shifted out through TDO.
This instruction may be executed without interrupting
normal operation of the part. When the EXTEST instruction is executed, the boundary scan register bits supersede the normal functionality of the I/O pins: an output
mirrors the state of the corresponding boundary scan
register bit.
Table 19 lists the function of each boundary scan register bit. Since the I2C address select pins have three
possible states, 2 boundary scan register bits are
required to represent them. These bits are defined in
Table 20.
Applications Information
Layout and Bypassing
Bypass VCC, DBP, and ABP each with a 1µF capacitor
to GND. Bypass RBP with a 2.2µF capacitor to GND.
Avoid routing digital return currents through a sensitive
analog area, such as an analog supply input return
path or ABP’s bypass capacitor ground connection.
Use dedicated analog and digital ground planes.
______________________________________________________________________________________
39
MAX16031/MAX16032
Table 17. 32-Bit Identification Code
MAX16031/MAX16032
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Table 20. Address Pin State Decode
Table 19. Boundary Cell Order
DESCRIPTION/PIN
A0A A0B
A0 PIN STATE
0–147
Reserved
00
High impedance
148
GPIO1 (output)
01
Low
149
GPIO2 (output)
10
High
150
SDA (output)
11
Not defined
151
ALERT
152
FAULT2
153
FAULT1
154
OVERT
155
RESET
BOUNDARY CELL NO.
40
Chip Information
PROCESS: BiCMOS
156
OVERC
157–182
Reserved
183
GPIO2 (input)
Package Information
184
GPIO1 (input)
185
SDA (input)
186
A0b
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in
the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.
187
A0a
188
A1b
189
A1a
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
190
SCL
48 TQFN-EP
T4877+6
21-0144
90-0132
191–197
Reserved
______________________________________________________________________________________
EEPROM-Based System Monitors
with Nonvolatile Fault Memory
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
0
7/07
Initial release
1
10/07
Revised the Ordering Information
—
1
2
6/10
Revised the Pin Description
11
3
9/10
Changed the minimum reference voltage specification in the Electrical
Characteristics section
3
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 41
© 2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
MAX16031/MAX16032
Revision History
MAX16031, MAX16032 基于EEPROM的系统监控器，提供非易失故障存储器 - 概述
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Maxim > 产品 > 监控电路、电压监测器、排序器 > MAX16031, MAX16032
MAX16031, MAX16032
基于EEPROM的系统监控器，提供非易失故障存储器
可配置EEPROM器件，有效提高高可靠性系统(网络、电信、服务器等设备)的正常运行时间
概述技术文档定购信息相关产品用户说明 (0) 所有内容状况
状况：生产中。
概述
数据资料
MAX16031/MAX16032可配置EEPROM系统监测器内部集成了10位模/数转换器(ADC)，用于监测复杂系统的电压、温度和电流。EEPROM可配置器件允许用户自行设置工作范围、上限和下限、故障输出
以及工作模式，并储存相关数据，从而实现更高的灵活性。
MAX16031可监测多达8路电压、3个温度点(1个内部温度/2个远端温度二极管)以及1路电
流；MAX16032可以监测6路电压和2个温度点(1个内部温度/1个远端温度二极管)。所有监测参量都复
用输入到ADC，并写入各自对应的寄存器，可通过SMBus™和JTAG接口读取。
完整的数据资料
英文
下载 Rev. 3 (PDF, 288kB)
中文
下载 Rev. 3 (PDF, 804kB)
测量值与用户设置的上限、下限进行比较。对于电压测量，有两个欠压门限和两个过压门限。对于电
流和温度测量，有两个过流门限和两个过热门限。一旦测量结果超出门限范围，将会产生报警信号并
通报处理器。对于指定通道，提供独立的过流、过热和欠压/过压指示输出。器件还具有非特定的故障
指示输出，为温度、电流或电压故障提供二级监测，也可以用作独立的过压检测输出。
发生严重故障(如系统关断)时，MAX16031/MAX16032自动将内部ADC寄存器的内容复制到非易
失EEPROM寄存器，以便以后进行故障诊断时读回。
MAX16031/MAX16032提供辅助GPIO，用于电压排序、辅助故障检测输出、手动复位输入或读/写逻
辑。具有独立输出的电流检测放大器在过流状态下可以快速关断。MAX16031/MAX16032采用7mm x
7mm TQFN封装，工作在-40°C至+85°C温度范围。
现备有评估板：MAX16031EVKIT
注：使用该产品需要以下文件：
MAX16031评估板软件
关键特性
供电电压范围为2.85V至14V
监测多达8路电压(单端输入或伪差分输入)，精度为1%
EEPROM可配置门限
2个欠压门限和2个过压门限
2个过热门限
2个过流门限
具有过流输出指示的高边电流检测放大器(仅MAX16031)
监测多达3个温度点(1个内部温度/2个远端温度点)
非失易故障寄存器用于存储故障状态，以便随后的系统恢复
两个辅助可配置故障输出
两个可配置GPIO
/效ALERT输出和具有总线超时功能的SMBus/I²C兼容接口
JTAG接口
7mm x 7mm，48引脚TQFN封装
图表
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参考文献： 19- 0870 Rev. 3; 2010- 10- 26
本页最后一次更新: 2010- 10- 26
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