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LM5069: LM5069控制热插拔,MOS损坏DS短路

Part Number: LM5069

使用LM5069设计软起动电路,输入48V30A,在小电流测试过程(12V~62V,0.5A)中NMOS损坏,D极和S极短路,G极和DS电阻120Ω,请问可能是什么原因。NMOS使用的是AON6284A 4个并联