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TPS51621: DC/DC控制器,偶尔会出现后级mos管被烧坏,造成12V短路!

Part Number: TPS51621


使用TPS51621,输入电压12V,输出电压1V/25A,两路并联使用,使输出总电流再1V/50A,按照TI提供的电源设计参考,但是使用过程中出现输入12v短路的现象,测量发现MOS管短路了。麻烦问一下什么原因会导致MOS管被烧坏!