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我最近用了一个tps2379做pd接口，测量vdd管脚电压不是48v，而是大概在3v或4v这样的而且是时有时无。2379后面有没有负载现象都没有48v的正常输出
您好，请问可以提供下您的电路图吗？这样方便我们更好的分析问题。
谢谢。
就是vdd端没有48v
