MAX6884 Datasheet | Maxim Integrated

MAX6884/MAX6885 19-3594; Rev 0; 2/05 EVAALVUAAILTAIOBNLEKIT EEPROM-Programmable, Hex Power-Supply Supervisory Circuits General Description 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 20m V increments or 0.5V to 3.05V in 10m V increments. Programmable outputs RESET, UV/OV, and WDO 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-patible serial data interface programs and municates 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). Applications Telemunications/Central-Office Systems Networking Systems Servers/Workstations Base Stations Storage Equipment Multimicroprocessor/Voltage Systems Features - 6 Configurable Input Voltage Detectors Programmable Thresholds 0.5V to 3.05V (in 10m V Increments) or 1V to 5.8V (in 20m V Increments) Primary UV and Secondary...