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TPS54201: 内部MOS被击穿

Part Number: TPS54201

外部供电电压28V,有没有可能,MOS管下管被击穿短路,而上管是完好的。如果会出现这种情况表现在输入端电流上,是什么样子的变化。采用的是推荐电路,参数也是一样的