MAX6856UK17D4-T Maxim Integrated, MAX6856UK17D4-T Datasheet - Page 9
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MAX6856UK17D4-T
Manufacturer Part Number
MAX6856UK17D4-T
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
MAX6854, MAX6855, MAX6856, MAX6858, MAX6860, MAX6861, MAX6862, MAX6863, MAX6864, MAX6865, MAX6866, MAX6867, MAX6868, MAX6869r
Datasheet
1.MAX6855UK46D4-T.pdf
(17 pages)
Specifications of MAX6856UK17D4-T
Number Of Voltages Monitored
1
Monitored Voltage
1.2 V to 5.5 V
Undervoltage Threshold
1.623 V
Overvoltage Threshold
1.707 V
Output Type
Active Low, Open Drain
Manual Reset
Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
1800 ms
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SOT-23
Chip Enable Signals
No
Maximum Power Dissipation
571 mW
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Supply Current (typ)
7 uA
Supply Voltage - Min
1.1 V
MAX6867/
MAX6869
—
1
2
3
4
5
PIN
Nanopower µP Supervisory Circuits with
_______________________________________________________________________________________
MAX6868
—
1
2
3
5
4
Manual Reset and Watchdog Timer
RESET
RESET
NAME
GND
WDI
V
MR
CC
MAX6867/MAX6868/MAX6869 Pin Description
Watchdog Input. If WDI remains high or low for longer than the watchdog timeout
period, the internal watchdog timer expires, and a reset is triggered for the reset
timeout period. The internal watchdog timer clears whenever reset is asserted,
the manual reset is asserted, or WDI sees a rising or falling edge.
Ground
Active-Low Manual Reset Input. Drive MR low to initiate a reset. The reset output
remains asserted while MR is held low and for the reset timeout period after MR
transitions high. Leave MR unconnected or connect to V
internally pulled up to V
Active-Low Open-Drain or Push-Pull Reset Output. RESET transitions from high to
low when V
watchdog timer expires. RESET remains low for the reset timeout period after
V
timer expires. Push-pull RESET outputs are referenced to V
RESET outputs require an external pullup resistor.
Supply Voltage. Input for V
a 0.1µF capacitor to GND.
Active-High Push-Pull Reset Output. RESET transitions from low to high when
V
timer expires. RESET remains high for the reset timeout period after V
exceeds the device reset threshold, MR deasserts, or after the watchdog timer
expires. RESET is referenced to V
CC
CC
exceeds the device reset threshold, MR deasserts, or after the watchdog
drops below the selected reset threshold, MR is pulled low, or the watchdog
CC
drops below the selected reset threshold, MR is pulled low, or the
CC
CC
through 10kΩ.
reset monitor. For noisy systems, bypass V
CC
FUNCTION
.
CC
CC
if unused. MR is
. Open-drain
CC
CC
with
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