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The MAX6884/MAX6885 EEPROM-configurable, multivoltage
power-supply supervisors monitor six voltagedetector
inputs, one auxiliary input, and one watchdog
input, and feature three programmable outputs for highly
configurable power-supply monitoring applications.
Manual reset and margin disable inputs offer additional
flexibility.
Each voltage-detector input offers a programmable primary
undervoltage and secondary undervoltage/overvoltage
threshold. Voltage-detector inputs IN1-IN6
monitor voltages from 1V to 5.8V in 20mV increments or
0.5V to 3.05V in 10mV increments.
Programmable outputs RESET-bar, UV-bar/OV-bar, and WDO-bar provide
system resets/interrupts. Programmable output
options include open-drain or weak pullup. Programmable
timing delay blocks configure each output to
wait between 25µs and 1600ms after their respective
assertion-causing conditions have been cleared. A fault
register logs condition-causing events (undervoltage,
overvoltage, manual reset, etc.).
An internal 10-bit, 1% accurate ADC (MAX6884 only)
converts the voltages at IN1-IN6, AUXIN, and VCC
through a multiplexer that automatically sequences
through all inputs every 200ms. An SMBus™/I²C*-compatible
serial data interface programs and communicates
with the configuration EEPROM, configuration
registers, internal 512-bit user EEPROM, and reads the
ADC registers (MAX6884 only) and fault registers.
The MAX6884/MAX6885 are available in a 5mm x 5mm
x 0.8mm 20-pin thin QFN package and operate over
the extended temperature range (-40°C to +85°C).
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