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TPS23754: TPS23754无法检测到POE供电, 是原理问题吗?

Part Number: TPS23754

你好:

现在的问题是使用53V的POE路油器,RJ45端无法量到电压,会是检测不成功导致供电端没有输出电压吗?

第一次用这芯片,原理是跟demo一样。