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BQ24650烧毁问题

Other Parts Discussed in Thread: BQ24650

我完全按数据手册设计的电路,正常使用没有问题。但是太阳能板不接或没电的情况下,插拔电池有时候会烧掉芯片,特点是0.02欧姆电阻和BQ24650烧掉,SRN引脚和地短路。

我认为这样,电压会通过Q7A的反并联二极管给VCC供电,瞬间导致芯片不稳定,引起烧毁?