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LM5010AMH 输入电源后加载后烧毁(14pin)

Other Parts Discussed in Thread: LM5010

输入电源 57.4V,

输出12.5v,加载后电流195mA

 

原理图

 

 

 LAYOUT图

 

 

 

目前测试已烧毁 14PCS,约

13-6  1PCS

13-6-2 5PCS

13-5  1PCS

13-2  3PCS

12-3  5PCS

 

可否询问一下,这样的设计是否那里有问题呢?谢谢。