各位大佬,几乎完全按造TPS23754EVM-420画的poe电源板工作不正常,能与PSE正常握手,但PSE供给50V电压后一秒左右VDD电压降为0,重新开始握手并重复整个流程,表现为整个电源板一直在重启,此时电源板空载,无短路存在,PSE等外部器件经测试工作正常。具体波形图和参照原理图在附件中,望各位大佬不吝指教,万分感谢!TPS23754EVM-420.pdf
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
各位大佬,几乎完全按造TPS23754EVM-420画的poe电源板工作不正常,能与PSE正常握手,但PSE供给50V电压后一秒左右VDD电压降为0,重新开始握手并重复整个流程,表现为整个电源板一直在重启,此时电源板空载,无短路存在,PSE等外部器件经测试工作正常。具体波形图和参照原理图在附件中,望各位大佬不吝指教,万分感谢!TPS23754EVM-420.pdf