Other Parts Discussed in Thread: LM5088
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您好,请查看我的原理图和layout图,现在我的肖特基二极管被烧坏了,高压60V的时候,电感特别烫,紧接着没有1分钟,我的续流二极管就烧坏了,直接短路了
你好,几个地方需要优化一下:
1.Snubber电路的电容C16直接接到地,不要经过采样电阻
2.输出电解电容减小,瓷片电容也要减小,请完全按照WEBENCH的原理图来,电容不要随意更改那么多,可以微调
3.Layout上SW管脚和电感相连的走线加粗一点