HT71D0x设计的动力线数据传输技术

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本文介绍了HT71D02/HT71D04主要特性,方框图和系统方框图以及应用电路.Holtek公司的HT71D0x是动力线数据收发器, HT71D02内置3.3V稳压器输出, HT71D04内置5.0V稳压器输出, 全系列高压输入电压可达30V. 经由内置数据传输调制接口,可将高压传输在线数据解调并转为3.3V or 5V信号给子系统MCU,亦可将子系统MCU信号调制后转为高压经由传输线传回主系统,适用于诸如烟感器、水表等联网系统产品。
HT71D02/HT71D04主要特性:

_ Complete Data Transmission on Power Line functions

_ High Maximum Input Voltage: 30V

_ Integrated Low Dropout Voltage Regulator

_ Integrated Voltage Detector for Power Supply Monitoring

_ Open drain NMOS drivers for flexible interfacing

_ Power and Reset Protection Features

_ 8-pin SOP package type

_ Minimal external component requirements




图1.HT71D02/HT71D04方框图



图2.HT71D02/HT71D04系统方框图



图3.HT71D02/HT71D04应用电路图