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TPS2544: Will USB device be damaged when D+/D- is short for DCP mode?

Ann_Lien
Genius 14480 points
Part Number: TPS2544

Hello expert,

My customer want to know if USB device will be damaged when D+/D- is short in DCP mode. As I know, there should be no current when D+/D- is short and no signal is transmitting. But customer would like to check if there is any damage on this operation? Thanks a lot!

Best regards,

Ann Lien

  • 0
    TI__Mastermind 30000 points

    Hi Ann,

    No there should be no damage on these pins as the portable devices should expect this occur when connected to a dedicated charger.

    Also, there is a 100 ohm resistor used to connect D+ to D- while in DCP mode, so they are not being shorted directly from one another