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AMC1200 副边VCC 损坏问题咨询

Other Parts Discussed in Thread: AMC1200

TI 工程师你好,这里咨询一个AMC1200用于电流采样,电压采样,

调试时,经常会出现副边VCC5V(PIN8)短路,或是损坏。规格书范围为(2.7V-5.5V).

 

随机性,不是同一台反复出现。有时是一颗损坏,有时是三颗损坏。

目前排除了5V 的 供电尖峰. 滤波电容105,104,。 请问还需要从什么方向分析?