GENERAL DESCRIPTION

The ADM1185 is an integrated, 4-channel, voltage monitoring and sequencing device. A 2.7 V to 5.5 V power supply is required on the VCC pin to power the device.

Four precision comparators monitor four voltage rails. All comparators have a 0.6 V reference with a worst-case accuracy of 0.8. Resistor networks that are external to the VIN1, VIN2, VIN3, and VIN4 pins set the trip points for the monitored supply rails.

A digital core interprets the status of the comparator outputs.

FEATURES

Powered from 2.7 V to 5.5 V on the VCC pin

Monitors 4 supplies via 0.8 accurate comparators

Logical core with internal timeouts provides power supply

sequencing and fault protection

4 inputs can be programmed to monitor different voltage

levels with resistor dividers

3 open-drain enable outputs

Open-drain power-good output (PWRGD)

10-lead MSOP

APPLICATIONS

Monitor and alarm functions

Power supply sequencing

Telecommunication and data communication equipment

PCs/servers