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BQ25886: 充到8.4V时,没有恒压和涓流的过程,红灯闪

Part Number: BQ25886


输入为5V,设置输入电流为3A,电池充电电压设置为8.4V,电池充电电流为2A。在充电到8.4V时,红灯闪烁,测试BQ25886的BAT脚的充电电流时,为1A和0之间变化,电压在8.4V到8.0V之间跳变,感 觉没有恒压和涓流的功能。电路图如下“