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单节锂电池充电管理和路径管理芯片的选择

Other Parts Discussed in Thread: BQ25606

最近项目上需要独立充放电管理,给单节3.7V,8000mAH锂电池充电同时保证系统4.2V的供电(外部电源通过芯片旁路过去的电压最高不超过4.3V),输入电压5V,没有输入时能保证锂电池正常工作输出。看了很多芯片电源旁路过去的都是4.4V-4.5V,请教一下有什么适合的芯片么,谢谢