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TPD2EUSB30DRTR polarity question

King Tsai
Intellectual 2555 points

Part Number: TPD2EUSB30

Hello, Team

our customer wants to know what will happen if they reverse D-, D+ connection of the polarity.

  • 0
    TI__Mastermind 22480 points

    Hi King,

    By reversing the polarity you would have a negative voltage on the data line and the diode will begin to conduct at voltages above - 0.5 V. This diode could be damaged if conducting continiously during a polarity reversal. 

    If you want to protect an interface like USB from reverse polarity on the data lines, you will need a bi-directional device. 

    Regards,

    Sebastian