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刚开始接入华为充电器时识别的是DCP协议，5v 1.9A的输入，到后面电池快充满时电流为280ma，电压为12v，识别到的是快充协议，这个现象正常？
怎么不会一开始就识别到快充协议呢？
您好，请参考数据手册8.2.3.3.1 D+/D– Detection Sets Input Current Limit
