FEATURES
Powered from 2.7 V to 5.5 V on the VCC pin Monitors 4 supplies via 0.8% accurate comparators 4 inputs can be programmed to monitor different voltage levels with external resistor dividers 3 open-drain enable outputs (OUT1, OUT2, and OUT3) Open-drain power-good output (PWRGD) Internal 190 ms delay associated with assertion of PWRGD 10-lead MSOP APPLICATIONS
Monitor and alarm functions Telecommunications Microprocessor systems PC/servers FUNCTIONAL BLOCK DIAGRAM VCC VIN1 VIN2 VIN3 VIN4 ADM1184 REF = 0.6V REF = 0.6V REF = 0.6V REF = 0.6V POWER AND REFERENCE REF = 0.6V GENERATOR INTERNAL LOGIC OUT1 OUT2 OUT3 PWRGD GND 07352-001 GENERAL DESCRIPTION
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. Resistor networks that are external to the VIN1, VIN2, VIN3, and VIN4 pins set the trip points for the monitored supply rails. The ADM1184 has four open-drain outputs. OUT1 to OUT3 can be used to enable power supplies, and PWRGD is a common power-good output.
Analog Devices
