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tpa3123静态电流过大



tpa3123功放,将音频输入和喇叭全部断开,只连接电源,发现有120mA左右的电流。另外一块tpa3123的板子相同条件下指挥在上电的瞬间有个100多mA的电流,然后就会降到3mA左右。两块板子电路相同,求TI大神解救!

我试过将输出的电感、耦合电容断开还是会出现静态电流一直在120mA左右。

tpa3123.PDF