参考TIPD102的设计,发现0V输入时,恒流就有一个0.4mA的电流输出,当输入电压大于0.7V时,恒流输出又变的正常,排查了一圈,更换了所有器件,问题现象仍然存在,请教后面如何排查
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参考TIPD102的设计,发现0V输入时,恒流就有一个0.4mA的电流输出,当输入电压大于0.7V时,恒流输出又变的正常,排查了一圈,更换了所有器件,问题现象仍然存在,请教后面如何排查