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请推荐一款可用于座充的充电IC,电池容量较小，只有20mAh
充电方式是通过USB线连接充电座给设备的电池充电。可以将座充通过USB线接在电脑上充电，也可以使用5V电源适配器的USB接口连接座充充电。充电座上需要有充电状态指示。
您可以看一下bq2423x系列
