Maxim MAX16074RSD+ μp supervisory circuits in 4-bump (1mm x 1mm) chip-scale package Datasheet

19-5112; Rev 0; 1/10
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
The MAX16072/MAX16073/MAX16074 ultra-small, ultralow-power, microprocessor (µP) supervisory circuits
feature a precision band-gap reference, comparator,
and internally trimmed resistors that set the threshold
voltage. Designed to monitor the system supply voltage
and assert an output during power-up, power-down,
and brownout conditions, these devices provide excellent circuit reliability and low cost by eliminating external
components and adjustments when monitoring nominal
system voltage from 1.8V to 3.6V.
The MAX16072 has a push-pull, active-low reset output,
the MAX16073 has a push-pull, active-high reset output,
and the MAX16074 has an open-drain active-low reset
output. The devices are designed to ignore fast transients on VCC. The devices also include a manual reset
input (MR).
The MAX16072/MAX16073/MAX16074 are available in a
1mm x 1mm, space-saving, 4-bump, chip-scale package (UCSPTM).
Applications
Portable/Battery-Powered Equipment
Features
S Ultra-Low, 0.7µA Supply Current
S Ultra-Small (1mm x 1mm), 4-Bump UCSP
S 20µs, 8ms, 34ms, and 140ms Reset Timeout
Options Available
S Factory-Trimmed Reset Thresholds Available
from 1.58V to 3.08V in Approximately 100mV
Increments
S Q2.5% Threshold Accuracy Over Temperature
S Manual Reset Input
S Guaranteed Reset Valid to VCC = 1.0V
S Immune to Short VCC Transient
Ordering Information
RESET OUTPUT TYPE
MAX16072RS_ _D_+
Push-Pull, Active-Low
4 UCSP
MAX16073RS_ _D_+
Push-Pull, Active-High
4 UCSP
MAX16074RS_ _D_+ Open-Drain, Active-Low
Cell Phones
PINPACKAGE
PART
4 UCSP
Note: All devices are specified over the -40NC to +85NC operating temperature range.
PDAs
MP3 Players
Digital Cameras
Typical Operating Circuit
Insert the desired suffix numbers (from Table 1) into the blanks
“RS_ _D” to indicate the reset trip threshold. Insert the desired
suffix number (from Table 2) into the blank ”D_+” to indicate the
reset timeout. Minimum order quantity may apply.
+Denotes a lead(Pb)-free/RoHS-compliant package.
VCC
VCC
MR
MAX16072
MAX16073 (RESET)/
MAX16074 RESET
GND
VCC
µP
RESET
INPUT
GND
( ) FOR THE MAX16073 ONLY
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products 1
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.
MAX16072/MAX16073/MAX16074
General Description
MAX16072/MAX16073/MAX16074
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND.)
VCC, MR...................................................................-0.3V to +6V
RESET, RESET Push-Pull.......................... -0.3V to (VCC + 0.3V)
RESET Open-Drain...................................................-0.3V to +6V
Output Current (all pins).................................................. Q20mA
Continuous Power Dissipation (TA = +70NC)
4-Bump UCSP (derate 3mW/NC above +70NC)...........239mW
Operating Temperature Range........................... -40NC to +85NC
Storage Temperature Range............................. -65NC to +150NC
Junction Temperature......................................................+150NC
Soldering Temperature (reflow).......................................+260NC
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 = 1.5V to 2.75V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC and VCC = 3.6V.) (Note 1)
PARAMETER
SYMBOL
Operating Voltage Range
VCC
Supply Current
ICC
Detector Threshold
Detector Threshold Hysteresis
Detector Threshold Tempco
VTH
VHYST
DVTH/NC
CONDITIONS
MIN
TYP
MAX
TA = 0NC to +85NC
1.0
5.5
TA = -40NC to +85NC
1.2
5.5
VCC = 1.8V for VTH P 1.66V
0.7
1.2
VCC = 3.6V, no load
1.0
1.5
VTH
VTH +
1.5%
VTH
VTH +
2.5%
See Table 1
VCC falling, TA = +25NC
VTH 1.5%
VCC falling, TA = -40NC to
+85NC
VTH 2.5%
UNITS
V
FA
V
VCC rising, VTH P 1.66V (Note 2)
6.3
mV
(Note 2)
40
ppm/NC
MR INPUT
0.7 x
VCC
VIH
MR Input High Voltage
0.7 x
VCC
VIL
25
MR Pullup Resistance
50
75
V
kI
RESET/RESET OUTPUT (Note 3)
Output-Voltage Low
Output-Voltage High
VOL
VCC R 1.2V, ISINK = 100FA
0.4
VCC R 1.65V, ISINK = 1mA
0.3
VCC R 1.65V, ISOURCE = 500FA
0.8 x
VCC
VCC R 1.2V, ISOURCE = 50FA
0.8 x
VCC
VOH
Open-Drain RESET Output
Leakage Current
V
V
0.1
RESET not asserted (Note 2)
FA
TIMING
MR Minimum Pulse Width
tMPW
(Note 2)
MR Glitch Rejection
tEGR
(Note 2)
MR to RESET/RESET
Propagation Delay
tOFF
MR falling
tON
VCC to Reset Delay
tDL
MR rising
VCC = (VTH + 100mV) to (VTH -100mV)
0.8
Fs
100
ns
1
2
Fs
200
400
ns
20
90
Fs
2 _______________________________________________________________________________________
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
(VCC = 1.5V to 2.75V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC and VCC = 3.6V.) (Note 1)
PARAMETER
SYMBOL
Reset Active Timeout Period
CONDITIONS
VCC rising, VCC
= (VTH - 100mV)
to (VTH + 100mV)
tRP
MIN
TYP
MAX
MAX1607_RSD0+
20
80
120
UNITS
Fs
MAX1607_RSD1+
8
13
17
ms
MAX1607_RSD2+
34
52
69
ms
MAX1607_RSD3+
140
210
280
ms
Note 1: Production testing done at TA = +25NC only. Overtemperature limits are guaranteed by design and are not production
tested.
Note 2: Guaranteed by design.
Note 3: Reset is guaranteed down to VCC = 1.0V.
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
3
2
1
VCC = 5V
2.0
VCC = 3V
1.5
1.0
0.5
0
VCC = 1.8V
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
-40
-15
10
35
TEMPERATURE (°C)
60
85
0.3
MAX16072 toc03
MAX16072 toc02
2.5
SUPPLY CURRENT (µA)
4
SUPPLY CURRENT (µA)
3.0
MAX16072 toc01
5
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
NORMALIZED RESET THRESHOLD (%)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
0.2
0.1
VCC FALLING
0
-0.1
VCC RISING
-0.2
-0.3
-40
-15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________ 3
MAX16072/MAX16073/MAX16074
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
1.50
4.5
4.0
1.00
VOH (V)
VCC = 5V
0.75
0.25
0
2
4
6
8
VCC = 1.8V
40
35
30
20
15
10
0.5
5
0
2
4
6
8
VRST = 1.63V
25
1.0
0
10 12 14 16 18 20
VRST = 3.08V
0
10 12 14 16 18 20
10
1
100
1000
ISINK (mA)
ISOURCE (mA)
RESET THRESHOLD OVERDRIVE (mV)
VCC TO RESET PROPAGATION DELAY
vs. TEMPERATURE
VCC TO RESET PROPAGATION DELAY
vs. TEMPERATURE
MR TO RESET DELAY (tON)
vs. VCC
60
VOD = 100mV
VOD = 200mV
40
VOD = 10mV
VOD = 20mV
VOD = OVERDRIVE VOLTAGE
100
VOD = 10mV
80
VOD = 100mV
60
150
VOD = 20mV
40
120
VCC FALLING
MR RISING
0
1.650
0
-15
10
35
60
60
VCC RISING
0
-40
90
30
VOD = 200mV
20
MAX16072 toc09
120
RESET DELAY (ns)
VOD = OVERDRIVE VOLTAGE
PROPAGATION DELAY (µS)
MAX16072 toc07
80
PROPAGATION DELAY (µs)
2.5
1.5
VCC = 1.8V
0
3.0
2.0
VCC = 3V
0.50
VCC = 3V
RESET OCCURS ABOVE LINES
45
MAX16072 toc08
VOL (V)
1.25
20
VCC = 5V
3.5
50
MAX16072 toc06
1.75
MAX16072 toc05
5.0
MAX16072 toc04
2.00
MAXIMUM TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
TRANSIENT DURATION (µs)
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
85
-40
-15
10
35
TEMPERATURE (°C)
TEMPERATURE (°C)
MR TO RESET DELAY (tOFF)
vs. VCC
MR TURN-ON
60
85
1.925
2.200
MAX16072 toc10
1.00
2.475
2.750
VCC (V)
MR TURN-OFF
MAX16072 toc11
1.25
RESET DELAY (µs)
MAX16072/MAX16073/MAX16074
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
MAX16072 toc12
MR
1V/div
MR
1V/div
RESET
1V/div
RESET
1V/div
0.75
0.50
0.25
MR FALLING
0
1.650
1.925
2.200
2.475
2.750
100ns/div
200ns/div
VCC (V)
4 _______________________________________________________________________________________
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
MAX16072
MAX16073
MAX16074
TOP VIEW
(BUMP SIDE DOWN)
1
2
A
GND
VCC
B
RESET/
(RESET)
MR
+
UCSP
( ) FOR THE MAX16073 ONLY
Bump Description
BUMP
MAX16072
MAX16073
MAX16074
A1
A1
A1
B1
—
—
B1
—
—
NAME
GND
FUNCTION
Ground
RESET
Active-Low Push-Pull Reset Output. RESET changes from high to
low when VCC drops below the detector threshold (VTH) or MR is
pulled low. RESET remains low for the reset timeout period after VCC
exceeds VTH and MR is high. When MR is low, RESET is low.
RESET
Active-High Push-Pull Reset Output. RESET changes from low to
high when VCC drops below the detector threshold (VTH) or MR is
pulled low. RESET remains high for the reset timeout period after VCC
exceeds VTH and MR is high. When MR is low, RESET is high.
Active-Low Open-Drain Reset Output. RESET changes from highimpedance to active-low when VCC drops below the detector threshold (VTH) or MR is pulled low. RESET remains low for the reset timeout
period after VCC exceeds the reset threshold and MR is high. When
MR is low, RESET is low.
—
—
B1
RESET
A2
A2
A2
VCC
Supply Voltage and Input for the Reset Threshold Monitor
MR
Active-Low Manual-Reset Input. Drive low to force a reset. Reset
remains active as long as MR is low and for the reset timeout period (if
applicable) after MR is driven high. MR has an internal pullup resistor
connected to VCC, and may be left unconnected if not used.
B2
B2
B2
_______________________________________________________________________________________ 5
MAX16072/MAX16073/MAX16074
Bump Configuration
MAX16072/MAX16073/MAX16074
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
Functional Diagrams
VCC
VCC
RESET
(RESET)
RESET
TIMEOUT
RESET
RESET
TIMEOUT
MAX16072
MAX16073
MAX16074
MR
MR
GND
GND
( ) MAX16073 ONLY
Detailed Description
The MAX16072/MAX16073/MAX16074 ultra-small, ultralow-power, µP supervisory circuits feature a precision
band-gap reference, comparator, and internally trimmed
resistors that set specified trip threshold voltages.
Designed to monitor the system supply voltage and an
output during power-up, power-down, and brownout
conditions, these devices provide excellent circuit reliability and low cost by eliminating external components
and adjustments when monitoring nominal system voltage from 1.8V to 3.6V.
The MAX16072 has a push-pull active-low reset output,
the MAX16073 has a push-pull active-high reset output,
and the MAX16074 has an open-drain active-low reset
Supply and Monitored Input (VCC)
The MAX16072/MAX16073/MAX16074 operate with a
VCC supply voltage from 1.2V to 2.75V. VCC has a rising
threshold of VTH + VHYST and a falling threshold of VTH.
When VCC rises above VTH + VHYST and MR is high,
RESET goes high (RESET goes low) after the reset timeout period (tRP). See Figure 1.
When VCC falls below VTH, RESET goes low (RESET
goes high) after a fixed delay (tRD).
VTH + VHYST
VTH
VCC
output. The devices are designed to ignore fast transients on VCC. The devices also include a manual reset
input (MR). When MR is low, reset is asserted. When MR
is high and VCC is above the detector threshold (VTH),
reset is not asserted.
tMPW
t < tEGR
t < tMPW
MR
RESET
tON
tDL
tRP
tOFF
tON
Figure 1. MAX16072/MAX16073/MAX16074 Timing Diagram
6 _______________________________________________________________________________________
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
Table 1. Factory Trimmed Reset
Thresholds
TA = +25NC
TYP
MIN
MAX
15
1.58
1.54
1.61
16
1.63
1.60
1.66
17
1.67
1.62
1.71
18
1.80
1.76
1.85
19
1.90
1.85
1.95
20
2.00
1.95
2.05
21
2.10
2.05
2.15
22
2.20
2.145
2.25
23
2.32
2.262
2.375
24
2.40
2.34
2.46
25
2.50
2.437
2.562
26
2.63
2.564
2.69
27
2.70
2.633
2.768
28
2.80
2.63
2.87
29
2.93
2.857
3.0
30
3.00
2.925
3.075
31
3.08
3.003
3.15
Applications Information
Interfacing to µP with
Bidirectional Reset Pins
Since RESET on the MAX16074 is open-drain, this
device interfaces easily with FPs that have bidirectional
reset pins. Connecting the FP supervisor’s RESET output
directly to the FP’s RESET pin with a single pullup resistor allows either device to assert reset (Figure 2).
Negative-Going VCC Transients
The MAX16072/MAX16073/MAX16074 family of devices is relatively immune to short-duration, negativegoing VCC transients (glitches). The Typical Operating
Characteristics show the Maximum Transient Duration
vs. Reset Threshold Overdrive graph, for which reset
pulses are not generated. The graph shows the maximum pulse width that a negative-going VCC transient
may typically have when issuing a reset signal. As the
amplitude of the transient increases, the maximum allowable pulse width decreases.
RESET TRIP THRESHOLD (V)
THRESHOLD
SUFFIX
TA = -40NC to +85NC
Table 2. Reset Timeout Periods
RESET TIMEOUT PERIODS
SUFFIX
MIN
TYP
MAX
UNITS
0
20
80
120
Fs
1
8
13
17
ms
2
34
52
69
ms
3
140
210
280
ms
VCC
VCC
VCC
MAX16074
µP
MOTOROLA
68HCXX
RESET
MR
GND
RESET
INPUT
GND
Figure 2. Interfacing to µP with Bidirectional Reset Pins
_______________________________________________________________________________________ 7
MAX16072/MAX16073/MAX16074
Manual Reset Input (MR)
Many FP-based products require manual-reset capability, allowing the operator, a test technician, or external
logic circuit to initiate a reset. A logic-low on MR asserts
reset. Reset remains asserted while MR is low, and for
the reset active timeout period (tRP) or delay (tON) after
MR returns high. This input has an internal 50kI pullup
resistor, so it can be left unconnected if it is not used.
MR can be driven with TTL or CMOS logic levels, or
with open-drain/collector outputs. For manual operation,
connect a normally open momentary switch from MR to
GND; external debouncing circuitry is not required. If MR
is driven from long cables or if the device is used in a
noisy environment, connect a 0.1FF capacitor from MR to
ground to provide additional noise immunity.
MAX16072/MAX16073/MAX16074
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
Chip Information
PROCESS: BiCMOS
Package Information
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.
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
4 UCSP
R41C1-1
21-0242
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.
8
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Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
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