Part Number:BQ27220Other Parts Discussed in Thread: BQSTUDIO
目前在使用BQ27220器件作为电源管理芯片,遇到在电池充满电后当前电流小于Sleep Current 时器件会进入Sleep模式,这时候主机向器件获取电压、温度等数据只会返回有误的数据并不是当前实际数据。
问题:该器件可以在不关闭自动休眠功能的情况下,在充满电时获取电压、温度等数据?如果可以需要调整哪些寄存器?
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在 SLEEP 模式下,电量监测计会定期进行数据测量并更新其数据集。不过,电量监测计大部分时间都处于空闲状态。
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h qs:
目前通过bqStudio进行调试发现,电池充满电后电压、温度这些数据获取出来都是不正确的,电压会是3700mv 温度会是20℃。但是我尝试禁用自动休眠后即使在电池充满电后也能获取正确的电压、温度等数据,所以我不确定器件是否进入了SLEEP模式?如果进入SLEEP模式获取电压、温度等参数是否会出现不正确的问题?还是需要器件从SLEEP -> NORMAL后才能正确获取这些数据?
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Normal模式会获得正确数据,需要对其进行唤醒。