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BQ25720: BQ25720芯片Type-c充电方案

Part Number: BQ25720
Other Parts Discussed in Thread: BQ25731

您好,请问采用PD3.0的Type-c适配器协议充电,需要在充电管理芯片前端加一个type-c取电芯片吗,我看到参考手册里直接把Type-c适配器接到芯片上,没有接cc1和cc2引脚,那这个是怎么取电压的呢?