Part # ADM1184 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: ADM1184 0.8% Accurate Quad Voltage Monitor Data Sheet (Rev.0)

Part Details:

0.8% Accurate Quad Voltage Monitor ADM1184 FEATURES FUNCTIONAL BLOCK DIAGRAM VCC Powered from 2.7 V to 5.5 V on the VCC pin Monitors 4 supplies via 0.8% accurate comparators POWER AND 4 inputs can be programmed to monitor different voltage REF = 0.6V ADM1184 REFERENCE GENERATOR levels with external resistor dividers OUT1 3 open-drain enable outputs (OUT1, OUT2, and OUT3) VIN1 Open-drain power-good output (PWRGD) REF = 0.6V Internal 190 ms delay associated with assertion of PWRGD OUT2 10-lead MSOP VIN2 REF = 0.6V APPLICATIONS INTERNAL OUT3 LOGIC Monitor and alarm functions VIN3 REF = 0.6V Telecommunications Microprocessor systems PWRGD VIN4 PC/servers REF = 0.6V GND 0012-3507 Figure 1. GENERAL DESCRIPTION The ADM1184 is an integrated, 4-channel voltage-monitoring OUT1 to OUT3 are dependent on their associated VINx input device. A 2.7 V to 5.5 V power supply is required on the VCC pin (that is, VIN1, VIN2, or VIN3). If a supply monitored by VINx to power the device. drops below its programmed threshold, the associated OUTx pin Four precision comparators monitor four voltage rails. and PWRGD are disabled. Each comparator has a 0.6 V reference with a worst-case PWRGD is a common power-good output indicating the status accuracy of 0.8%. Resistor networks that are external to the of all monitored supplies. There is an internal 190 ms (typical) VIN1, VIN2, VIN3, and VIN4 pins set the trip points for delay associated with the assertion of the PWRGD output. If

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ADM1184.pdf Datasheet