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LM3881电源时序管理芯片问题。

Other Parts Discussed in Thread: LM3881

LM3881芯片的在上电后不启用,在电路某个点的电压输入后再启用,可以通过控制EN引脚还是别的脚来实现?该如何实现芯片的关断和打开功能?假如有个引脚可以控制芯片使能,假如拉低是使芯片无法使用,那上电后还是低,等电路某部分连接后,让它启用时序,改变状态。