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TPS2549 快充疑问

vincent wei
Prodigy 210 points
Other Parts Discussed in Thread: TPS2549

你好！

TPS2549设置在CDP模式下，

连接华为荣耀10时，充电电流可以到达1.42A，连接IPHONE 8 Plus时充电电流为1.46A；

但是连接华为P20时，充电电流为0.46A，连接小米MIX2时，充电电流0.46A

请问是因为TPS2549的不支持P20，MIX2，还是因为手机端的原因，谢谢！

  • 0
    TI__Guru*** 130456 points

    建议您确认一下P20，小米mix是否支持CDP-auto
    The TPS2549 device also integrates CDP mode, defined in the BC1.2 specification, to enable up to 1.5-A fast
    charging of most of portable devices, meanwhile supporting data communication. In addition, the device
    integrates the DCP-auto feature to enable fast-charging of most portable devices including pads, tablets, and
    smart phones.

  • 0
    Intellectual 290 points
    快充高通版有QC2.0 , QC3.0 ; 华为有FCP协议，苹果的Apple 2.4A协议、三星BC1.2协议；这么多协议要在你的充电器里做识别电路，不然就无法快充， 移动电源大厂一般是加个MCU进行识别。