This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS2421的PG引脚

Other Parts Discussed in Thread: TPS2421-2

最近使用了TPS2421-2,使EN脚变高,使OUT关断,输出0V,此时PG引脚连接LED以及限流电阻到VIN。

  我使用了几个芯片,有一些PG会输出低电平、有一些不输出。我认为PG输出高电平是OK的,但为何此处有时会输出低电平呢?