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USB电源充电方案咨询

www.ti.com.cn/.../PMP8851

链接中的电路的充电电流是怎么确定的?还有可以再加上USB数据操作这个部分吗?就像手机连接电脑的时候,电脑与手机之间既可以进行数据传输,也可以给手机充电。