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BQ40Z80: 芯片损坏,PBI引脚无输出

Part Number: BQ40Z80

各位好,在使用BQ40Z80这款芯片的时候,总是会有芯片损坏的问题。在保护板上电,或做过充放电循环后,就会出现芯片损坏的问题,板子无法通讯,PBI引脚也无输出电压。请问各位使用这款芯片有遇到这种问题吗?有哪些原因会使这个芯片损坏呢?谢谢!