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参考 www.ti.com.cn/.../TPS2373-4EVM-758 设计的PD负载

Other Parts Discussed in Thread: TPS2373, UCC2897A

参考 www.ti.com.cn/.../TPS2373-4EVM-758  设计的PD负载,在接入POE交换机后,发现TPS2373的PG引脚输出8.5Hz的方波,输出异常,什么原因导致的呢,我的电路图和参考设计的电路图是一样的。谢谢