ADM1185

Quad Voltage Monitor and Sequencer ADM1185 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 FUNCTIONAL BLOCK DIAGRAM VCC VIN1 VIN2 VIN3 VIN4 ADM1185 REF = 0.6V REF = 0.6V REF = 0.6V REF = 0.6V POWER AND REFERENCE REF = 0.6V GENERATOR STATE MACHINE CORE OUT1 OUT2 OUT3 PWRGD GND 06196-001 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 ...