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.

LM5041同步问题

Other Parts Discussed in Thread: PMP7282
采用555定时器产生50%占空比400KHz方波,同步LM5041RT接地电阻12KΩ,方波通
100pF电容接到RT脚,TIME引脚通过 82KΩ电阻接VREF脚),此时无问题,当占空
比降为30%左右推挽输出波形错乱,并且不是所有芯片都有问题,大部分芯片还是

正产。提供的两个芯片一个是有问题一个没问题;是什么原因?

原理图如下: