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DRV8305-Q1: 应用问题

Part Number: DRV8305-Q1

批量出货后大概有1‰的概率会出现驱动芯片击穿现象,主要表现为驱动芯片PIN27PIN41附近的芯片表面有两个孔洞,部分故障件pin脚会被烧断。一般是什么原因?谢谢!