Maxim公司的MAX34451是监视多达16路电压或电流以及12路电源加电顺序的电源系统管理器;主要监测电源输出电压和电流以及常常检查用户编程阈值的过高和不足限值.MAX34451可快速可靠控制和故障检测提升了系统可靠性,快速最低/最高阈值偏移检测,支持多达5个温度传感器(1个内置,4个遥控)以及所有温度传感器的故障检测,并对多种参数报告峰值,最低值和平均值,可编程告警输出,I2C-/SMBus兼容串行总线,工作电压+3.0V到 +3.6V,主要用在网络交换/路由器,基站,服务器和智能电网网络系统.本文介绍了MAX34451主要优势和特性,框图和MFR_FAULT_RESPONSE运作图,工作电路图以及评估板MAX34451 EVK主要特性,电路图,材料清单和PCB设计图.
The MAX34451 is a power-supply system manager that is capable of monitoring up to 16 different voltage rails or currents and is also capable of sequencing and margining up to 12 power supplies. The system manager monitors the power-supply output voltages and currents and constantly checks them for user programmable over and under threshold limits. 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. 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.