MAX16154BECT datasheet(9/20 Pages) MAXIM

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Pin Description

NAME

FUNCTION

MAX1615

VCC

Supply Voltage. VCC is the power supply input and the

monitoring input. Bypass with a 0.1μF capacitor to GND.

GND

Ground

WDI

Watchdog Input. If WDI remains either high or low for the

duration of the watchdog timeout period (tWD), WDO pulses low

for the watchdog output pulse width, tWDO. The internal

watchdog timer clears whenever RST is de-asserted or

whenever WDI sees a falling edge.

WDO

Watchdog Output. WDO pulses low for the watchdog output

pulse width, tWDO, when the internal watchdog times out.

WDO is an open-drain output and requires a pull-up resistor.

—

Manual Reset Input. Drive MR low to manually reset the device.

RST remains asserted for the reset timeout period after MR is

released. MR is internally pulled up to VCC with a TBDkΩ

resistor.

—

WD_EN

Watchdog Enable Input. Drive WD_EN high to enable the

watchdog timer. Drive WD_EN low to disable the watchdog

timer.

RST

Reset Output. RST asserts when VCC falls below the factory-set

threshold. When VCC goes above VTH+ VHYS, RST remains

asserted for the reset timeout period tRP and then de-

asserts. RST is an open-drain output and requires a pull up

resistor.

MAX16152/MAX16153/

MAX16154/MAX16155

nanoPower Supervisor and Watchdog Timer

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