用过Bq2057给三节锂电池充电,工作时芯片比较热。有类似Bq2057的适合4节锂电池组充电管理的芯片吗?充电电流最大可达3A,电池组充满是16.8V,容量3000mAh,充电时不需要给负载供电,不需要单独检测每一节电池。因为电流问题是不是不能用线性的,只能用开关型的?
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