BQ25731: BQ25731 PD protocol and USB 3.0 fast charging protocol

Star Xu

Part Number: BQ25731
Other Parts Discussed in Thread: BQ25622

I found that the high-voltage fast charging chips support the type-C cc protocol are all buck boost chips, and only the single-cell high-voltage fast charging chips support DP DM I want to know why only the buck boost chip supports CC, and whether there is a single-cell fast charging chip that supports the cc protocol.

Waiting for your reply.

Thanks

Star

8 months ago

0 Tiger Zhou 8 months ago

TI__Mastermind 18905 points

Hi Star,

What does CC, DP, DM stands for? Could you elaborate?

Regards,

Tiger

0 Star Xu 8 months ago in reply to Tiger Zhou

TI__Genius 9645 points

Hi Tiger

Thanks for your reply.

DP DM is the standard communication pin of the USB port, which can be used to support fast charging protocols such as QC3.0. CC is the standard pin of the Type C port, used to support the PD fast charging protocol.

I want to know why only the buck boost chip supports CC, and whether there is a single-cell fast charging chip that supports the cc protocol.

Thanks

Star

0 Tiger Zhou 8 months ago in reply to Star Xu

TI__Mastermind 18905 points

Hi Star,

You can look at BQ25622.

https://www.ti.com/product/BQ25622E

Regards,

Tiger

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BQ25731: BQ25731 PD protocol and USB 3.0 fast charging protocol