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bq40z80进休眠模式测功耗一直在跳变

Other Parts Discussed in Thread: BQ40Z80

bq40z80进休眠模式,用万用表测功耗,发现读数一直在跳变,80uA到几百uA之间变化,有时最大去到500uA,请问这个是什么原因???我的具体设置如下图:

只有很小一段在80uA之间变化,感觉根本没有按设置的Sleep:Voltage Time和Sleep:Voltage Time时间来唤醒,变化得非常频繁???求指教!