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关于TPS23753APWR设计板子发烫和网路信号不稳定的相关问题



请问我用TPS23753APWR设计的PD受电端出现板子温度较高和网络传输时出现不稳定但是供电正常这有可能是什么问题。板子大小为  29MM,48MM。温度能达到近50度,后端用电为2W左右电压为12V  用 HR051142 变压器转换    网口变压器用HY60168EE带POE功能4011.POE.pdf