TPS25840-Q1: DP, DM communication

Iris Shen

Part Number: TPS25840-Q1

Hi team,

What's the behavior of TPS25840-Q1's DP and DM after BC1.2 negotiation is done? Is there still communication data transmitted?

Thanks!

0 Ziv Zhang 7 months ago

It determines by data sink and source handshaking process.

BC1.2 is one charging protocol instead of data communication protocol.

So it doesn't interfere data communication between device and host.

0 Iris Shen 7 months ago in reply to Ziv Zhang

Hi Ziv,

If we assume there is no USB communication between host and device, only BC1.2 charging, how about the DP and DM behavior after negotiation?

Thanks!

+1 Ziv Zhang 7 months ago in reply to Iris Shen

DP/DM should be zero voltage potential.

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