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LM5116: HO管脚在上电初始时,会有一段时间不输出波形

Part Number: LM5116


故障现象是在OUTPUT输出时,HO会有一段时间不输出波形,麻烦大牛能帮忙解答一下这个现象出现的原因;

另外还麻烦帮忙解答一下,LM5116开始转换的时间具体是由哪个信号决定相关?谢谢了!

故障波形如下:

原理图如下: