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您好,10mA是VCC电流,芯片没有坏,如果重新上电,芯片是能够正常工作的。OUT脚加一个二极管和一个1K电阻到输入 端是为了让OUT输出高时电压能够反馈给放大器IN+, 使此时放大器IN+能够比IN-电压高,使OUT一直保持输出为高电平。直到OUT被单片机引脚拉低