PMBus 12-Channel Voltage Monitor and Sequencer

The MAX34460A is a system monitor that is capable of managing up to 12 power supplies. The power-supply manager monitors the power-supply output voltages and constantly checks for user-programmable overvoltage and undervoltage thresholds. If a fault is detected, the device automatically shuts down the system in an orderly fashion. The device can sequence the supplies in any order at both power-up and power-down. With the addition of external current DACs, the device has the ability to close-loop margin the power-supply output voltages up or down to a user-programmable level. The device contains an internal temperature sensor and can support up to four external remote temperature sensors. Once configured, the device can operate autonomously without any host intervention.

APPLICATIONS

* Network Switches/Routers

* Base Stations

* Servers

* Smart Grid Network Systems

* 12 Channels of Power-Supply Management

* On-Board Nonvolatile Black Box Fault Logging and Default Configuration Setting

* Supports Complex Sequencing Requirements

* Dual Sequencing Groups

* Time- and Event-Based Sequencing

* Parallel/Cascaded Device Operation

* Programmable Up and Down Sequencing

* Watchdog Timer Function

* Easy to Program and Monitor

* PMBus™-Compatible Command Interface

* Easy-to-Use GUI

* Programmable Alarm Outputs

* Flexible Measurement and Monitoring Capability

* Reports Peak and Average Levels

* Four Remote Temperature Sensors

* One Internal Temperature Sensor