MAX34440

概述

    The MAX34440 is a complex system monitor that can manage up to six power supplies. The power-supply manager monitors the power-supply output voltage and constantly checks for user-programmable overvoltage and undervoltage thresholds. It can also margin the power-supply output voltage up or down to a user-programmable level. The margining is performed in a closed-loop arrangement whereby the device automatically adjusts a pulse-width-modulated (PWM) output and then measures the resultant output voltage. The power-supply manager can also sequence the supplies in any order at both power-up and power-down. With the addition of an external current-sense amplifier, the device can also monitor currents.

关键特性		应用/使用
6 Channels of Power-Supply Management Voltage Measurement/Monitoring Differential 12-Bit 1% Accurate ADC Min/Max Threshold Excursion Detection Supports Current Monitoring with External Current-Sense Amplifier Automatic Closed-Loop Margining Programmable Up and Down Sequencing Power-Good Output Supports Up to Eight Temperature Sensors Two Remote Diode Temperature Sensors Five Local Temperature Sensors One Internal Temperature Sensor Fault Detection on All Temp Sensors PMBus™-Compliant Command Interface I²C/SMBus™-Compatible Serial Bus with Bus Timeout Function On-Board Nonvolatile Fault Logging and Default Configuration Setting No External Clocking Required +3.3V Supply Voltage		基站 工业控制 网络交换机/路由器 服务器 智能卡网络系统