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LMV7239

Other Parts Discussed in Thread: LMV7239

你好:我这边做一个类似USB的缆线,两头都可以供电进来,实际过程只有一头供电,我要判断他是哪一头供电,使用了比较器LMV7239,5V主干路的电流最小可能10MA,不知道这个方案可行不?如图: