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[FAQ] BQ25700A: 我的适配器输入电压始终高于电池电压,是否可以在仅降压模式下运行 BQ25700A?

Part Number: BQ25700A
Other Parts Discussed in Thread: BQ24800, BQ24780S

否,不可以这么做。

BQ25700A 降压/升压充电控制器在启动和轻负载条件下使用全部四个开关。如果移除两个升压桥臂 MOSFET,BQ25700A 将无法正常启动。我们有 BQ24780S 或 BQ24800,该器件也适用于笔记本电脑应用。BQ24800 是一款具有混合功率升压功能的降压充电器,可用于仅降压充电器应用。