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LM5119问题求助

Other Parts Discussed in Thread: LM5119

如附件图所示,用LM5119做了一个30V转12V@30A的电源,发现在生产过程中不良率很高,维修发现主要是损坏LM5119的第2和第23脚,在板测量对地阻抗为100多欧,请教是什么原因造成这种不良,有什么办法避免?

5119.pdf