ON MC33464N-30ATR Micropower undervoltage sensing circuit Datasheet

Order this document by MC33464/D
MC33464
Micropower Undervoltage
Sensing Circuits
The MC33464 series are micropower undervoltage sensing circuits that
are specifically designed for use with battery powered microprocessor based
systems, where extended battery life is required. A choice of several
threshold voltages from 0.9 V to 4.5 V are available. These devices feature a
very low quiescent bias current of 0.8 µA typical.
The MC33464 series features a highly accurate voltage reference, a
comparator with precise thresholds and built–in hysteresis to prevent erratic
reset operation, a choice of output configurations between open drain or
complementary MOS, and guaranteed operation below 1.0 V with extremely
low standby current. These devices are available in either SOT–89 3–pin or
SOT–23 5–pin surface mount packages.
Applications include direct monitoring of the MPU/logic power supply
used in portable, appliance, automotive and industrial equipment.
MICROPOWER
UNDERVOLTAGE
SENSING CIRCUITS
SEMICONDUCTOR
TECHNICAL DATA
TAB
MC33464 Features:
• Extremely Low Standby Current of 0.8 µA at Vin = 1.5 V
•
•
•
•
•
1
Wide Input Voltage Range (0.7 V to 10 V)
Monitors Power Supply Voltages from 1.1 V to 5.0 V
High Accuracy Detector Threshold (±2.5%)
Two Reset Output Types (Open Drain or Complementary Drive)
H SUFFIX
PLASTIC PACKAGE
CASE 1213
(SOT–89)
Two Surface Mount Packages (SOT–89 or SOT–23 5–Pin)
ORDERING INFORMATION
Device
Threshold
Voltage
MC33464H–09AT1
MC33464H–20AT1
MC33464H–27AT1
MC33464H–30AT1
MC33464H–45AT1
0.9
2.0
2.7
3.0
4.5
MC33464H–09CT1
MC33464H–20CT1
MC33464H–27CT1
MC33464H–30CT1
MC33464H–43CT1
MC33464H–45CT1
0.9
2.0
2.7
3.0
4.3
4.5
MC33464N–09ATR
MC33464N–20ATR
MC33464N–21ATR
MC33464N–27ATR
MC33464N–30ATR
MC33464N–45ATR
MC33464N–48ATR
0.9
2.0
2.1
2.7
3.0
4.5
4.8
Open
Drain
Reset
MC33464N–09CTR
MC33464N–20CTR
MC33464N–27CTR
MC33464N–30CTR
MC33464N–45CTR
0.9
2.0
2.7
3.0
4.5
Compl.
MOS
Reset
Type
Open
Drain
Reset
Com l.
Compl.
MOS
Reset
Marking
T09A
T20A
T27A
T30A
T45A
T09C
T20C
T27C
T30C
T43C
T45C
9N
0R
1R
7R
0S
5T
8T
Package
(Qty/Reel)
Reset
1
Input
2
Ground
3
(Tab is connected
to Pin 2)
(Top View)
SOT 89
SOT–89
(1000)
5
1
N SUFFIX
PLASTIC PACKAGE
CASE 1212
(SOT–23–5)
SOT–23
((3000))
9F
0J
7J
0K
5L
Reset
1
Input
2
Ground
3
5 N/C
4 N/C
(Top View)
Other voltages from 0.9 to 6.0 V, in 0.1 V increments, are available. Consult factory for
information.
 Motorola, Inc. 1999
MOTOROLA ANALOG IC DEVICE DATA
Tab
Rev 2, 07/1999
1
MC33464
Representative Block Diagrams
MC33464X–YYATZ
Open Drain Configuration
2
MC33464X–YYCTZ
Complementary Drive Configuration
Input
2
Input
1
Reset
1
Reset
Vref
Vref
3
Gnd
3
Gnd
X Denotes Package Type
YY Denotes Threshold Voltage
TZ Denotes Taping Type
This device contains 25 active transistors.
MAXIMUM RATINGS (TC = 25°C, unless otherwise noted.)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
Symbol
Value
Unit
Power Input Supply Voltage
Rating
Vin
0 to 10
V
Reset Output Voltage
VO
–0.3 to 10
V
Reset Output Current (Source or Sink)
IO
70
mA
PD
RθJA
150
667
mW
°C/W
Power Dissipation and Thermal Characteristics
Maximum Power Dissipation
Case 1212 (SOT–23) N Suffix
Thermal Resistance, Junction–to–Ambient
Maximum Power Dissipation
Case 1213 (SOT–89) H suffix
Thermal Resistance, Junction–to–Ambient
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁ
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
Lead Temperature (Soldering)
2
PD
RθJA
300
333
mW
°C/W
TJ
+125
°C
TA
–40 to +85
°C
Tstg
–40 to +125
°C
Tsolder
260°C, 10 s
–
MOTOROLA ANALOG IC DEVICE DATA
MC33464
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C (Note 1), unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
COMPARATOR
Threshold Voltage
High State Output (Vin Decreasing)
09 Suffix
20 Suffix
21 Suffix
27 Suffix
30 Suffix
43 Suffix
45 Suffix
48 Suffix
V
VIH
0.878
1.95
2.048
2.633
2.925
4.193
4.388
4.680
0.9
2.0
2.1
2.7
3.0
4.3
4.5
4.8
0.922
2.05
2.152
2.768
3.075
4.407
4.613
4.920
0.027
0.060
0.063
0.081
0.090
0.129
0.135
0.144
0.045
0.100
0.105
0.135
0.150
0.215
0.225
0.240
0.063
0.140
0.147
0.189
0.210
0.301
0.315
0.336
Threshold Hysteresis
09 Suffix
20 Suffix
21 Suffix
27 Suffix
30 Suffix
43 Suffix
45 Suffix
48 Suffix
VH
V
Threshold Voltage Temperature Coefficient
TC
–
±100
–
Output Voltage
High State (Complementary Output: Isource = 1.0 mA)
Low State (Complementary or Open Drain: Isink = 1.0 mA)
VOH
VOL
Vin – 2.1
–
Vin – 1.0
0.025
Vin
0.05
Output Sink Current (Vin = 1.5 V, VOL = 0.5 V)
IOL
1.0
2.0
–
mA
Output Source Current (Vin = 4.5 V, VOL = 2.4 V)
IOH
1.0
2.0
–
mA
Operating Input Voltage Range
Vin
0.7 to 10
–
–
V
Quiescent Input Current
Vin = 2.9 V
Vin = 5.6 V
Iin
–
–
0.9
1.2
2.7
3.6
Propagation Delay Time (Note 2)
tp
–
–
100
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
PPM/°C
RESET OUTPUT
V
TOTAL DEVICE
µA
µs
NOTES: 1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
2. Propagation delay time is measured from the rising or falling edge of the input voltage to the point where the output voltage has transitioned to 50%
of its final value.
MOTOROLA ANALOG IC DEVICE DATA
3
MC33464
Figure 1. Quiescent Current versus Input Voltage
Figure 2. Detector Threshold versus Temperature
4.8
MC33464H–45CT1
MC33464H–45CT1
Vin , THRESHOLD VOLTAGE (V)
I in , QUIESCENT BIAS CURRENT (µ A)
5.0
4.0
TA = 80°C
3.0
2.0
TA = 25°C
1.0
TA = –30°C
0
0
2.0
4.0
6.0
8.0
10
Hysteresis
Voltage
4.6
Lower Threshold
Vin Decreasing
4.5
125
50
2.0
1.0
0
1.0
2.0
3.0
4.0
40
Vin = 4.0 V
Vin = 3.5 V
30
Vin = 3.0 V
20
Vin = 2.5 V
Vin = 2.0 V
10
Vin = 1.5 V
0
5.0
MC33464H–45CT1
TA = 25°C
1.0
0
25
I O , OUTPUT CURRENT (mA)
MC33464H–45ATR
RL = 470 k to Vin
TA = 25°C
Vin Increasing
0.1
Vin Decreasing
0.001
0.01
LOAD CAPACITANCE (µF)
3.0
4.0
5.0
Figure 6. Output Sink Current versus
Input Voltage
100
0.01
0.0001
2.0
VOL, OUTPUT SINK VOLTAGE (V)
Figure 5. Output Delay Time versus
Load Capacitance
t p , OUTPUT DELAY TIME (ms)
100
Figure 4. Reset Output Voltage versus
Sink Current
Vin, INPUT VOLTAGE (V)
4
75
Figure 3. Reset Output Voltage versus
Input Voltage
3.0
1.0
50
25
TA, AMBIENT TEMPERATURE (°C)
MC33464H–45ATR
RL = 470 k to Vin
TA = 25°C
4.0
10
0
–25
Vin, INPUT VOLTAGE (V)
I OL, OUTPUT SINK CURRENT (mA)
VO , OUTPUT VOLTAGE (V)
4.7
4.4
–55
12
5.0
0
Upper Threshold
Vin Increasing
MC33464H–45CT1
20
15
TA = –30°C
TA = 25°C
10
5.0
TA = 80°C
0.1
0
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
Vin, INPUT VOLTAGE (V)
MOTOROLA ANALOG IC DEVICE DATA
MC33464
Figure 7. Microprocessor Reset Circuit with Delay
2
470 k
Input
1
Microprocessor
Reset
Vin
Vref
CDelay
3
Gnd
A time delayed reset can be accomplished with the addition of CDelay. Figure 5 provides a graph of time delays, for both rising
and falling output waveform edges, as a function of CDelay. If another value of pullup resistance is used, the time delay can be
calculated by using the equation:
t
ȱȧ
ȧȧ
Ȳ
+ R CDelay
Delay
ȳȧ
ȧȧ)
ȴ
ǒ Ǔ
1
V
1 –
th(MPU)
V
in
tp
where VthMPU is the microprocessor reset input threshold voltage and tp is the propagation delay internal to the MC33464.
Figure 8. Microprocessor Reset Circuit
2
Input
1
Vin
Reset
Microprocessor
Vref
3
Gnd
MOTOROLA ANALOG IC DEVICE DATA
5
MC33464
OUTLINE DIMENSIONS
H SUFFIX
PLASTIC PACKAGE
CASE 1213–01
(SOT–89)
ISSUE O
A
D
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCING
PER ASME Y14.5M, 1994.
3. DATUM C IS A SEATING PLANE.
A2
C
B
D1
DIM
A2
B
B1
C
D
D1
E
E1
e
e1
L1
E1
E
L1
B
0.10
B1
C B
M
A
S
C
S
2X
e
0.10
M
C B
A
S
S
MILLIMETERS
MIN
MAX
1.40
1.60
0.37
0.57
0.32
0.52
0.30
0.50
4.40
4.60
1.50
1.70
–––
4.25
2.40
2.60
1.50 BSC
3.00 BSC
0.80
–––
e1
N SUFFIX
PLASTIC PACKAGE
CASE 1212–01
(SOT–23–5)
ISSUE O
A
5
E
A2
0.05 S
B
D
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DATUM C IS A SEATING PLANE.
A1
DIM
A1
A2
B
C
D
E
E1
e
e1
L
L1
4
1
2
L
3
E1
L1
B
C
5X
0.10
M
C B
S
A
S
C
e
e1
MILLIMETERS
MIN
MAX
0.00
0.10
1.00
1.30
0.30
0.50
0.10
0.25
2.80
3.00
2.50
3.10
1.50
1.80
0.95 BSC
1.90 BSC
0.20
–––
0.45
0.75
Recommended Footprint for Surface Mount Applications
2.0
0.7 MAX.
3.0
1.0
45°
2.4
0.7
1.5
0.95
1.0
1.0
1.5
1.0
(Unit: mm)
1.5
SOT–89
6
(Unit: mm)
0.95
1.9
SOT–23–5
MOTOROLA ANALOG IC DEVICE DATA
MC33464
NOTES
MOTOROLA ANALOG IC DEVICE DATA
7
MC33464
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8
◊
MC33464/D
MOTOROLA ANALOG IC DEVICE
DATA