ADI ADM1278热插拔控制解决方案

ADI公司的ADM1278是具有PMBus接口的热插拔控制器和数字电源与能量监视器,允许电路板插入或拔出带电的背板, 集成的12位ADC用来检测IOUT,VIN,VOUT和温度,精度±0.3%,短路的响应时间320ns,主要用在服务器,电源功率监视和控制/功率预算,通信和数据通信设备以及中心局设备.本文介绍了ADM1278主要特性,功能框图和典型应用电路,以及ADM1278评估板EVAL-ADM1278EBZ主要特性,基本框图,电路图,材料清单和PCB元件布局图.

The ADM1278 is a hot swap controller that allows a circuit board to be removed from or inserted into a live backplane. It also features current, voltage, and power readback via an integrated 12-bit analog-to-digital converter (ADC), accessed using a PMBus™ interface. The load current is measured using an internal current sense amplifier that measures the voltage across a sense resistor in the power path via the HS+ and HS− pins. A default current limit of 20 mV is set, but this limit can be adjusted, if required, using a resistor divider network from the internal reference voltage to the ISET pin.
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