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BQ25570: 个别芯片在电池VBAT端会产生1.1mA的漏电

Part Number: BQ25570


Hi,

  我在使用BQ25570作为太阳能充电控制芯片的时候,发现个别芯片在不接负载的情况下,锂电池VBAT会有1.1mA的漏电,芯片更换后漏电会消失,大概1/10的芯片会有这个问题。请问可能产生的原因是什么?静电还是焊接问题?

Thanks,

Du.