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TPS25750: UBC-cable definition with TPS25750

showfen chen
Prodigy 110 points
Part Number: TPS25750

Hi 

The CC1/ CC2 pin of TPS25750 is separated from USB-C connector, does standard  USB-C cable (support PD) can meet the cable double-side insertion requirement and certification, because its CC line only A5 (please refer to below pictures is USBC cable definition) ?

 

Thank you.

  • 0
    TI__Mastermind 34076 points

    Hi Showfen,

    CC1 and CC2 pins of TPS25750 should be connected to the Type-C port/connector CC1 and CC2 pins. This allow for insertion of different cable orientation (upside up and upside down) and for TPS25750 to communicate with the far-end connected device if its PD capable. 

    Let us know if there's any additional questions or concerns!

    Thanks and Regards,

    Raymond Lin

  • 0 in reply to Raymond Lin
    Prodigy 110 points

    Hi Raymond,

    Yes, we understood. but if the USB-C "cable" only 5 wires inside (VBUS(A4+A9+B4+B9)/ CC1 (A5)/ Dn1 (A7)/ Dp1(A6)/ GND(A1+A12+B1+B12), mean no CC2(B5) from USB-C "cable" connect to TPS25750.
    Does it also can be identified by TPS25750?

    Thank you.

  • 0 in reply to showfen chen
    TI__Mastermind 34076 points

    Hi Showfen,

    When a Type-C cable is connected to a Type-C PD port, the PD (including TPS25750) only uses one of the CC lines (CC1 or CC2) for communication with the connected far-end PD device. The other CC line is either left floating or it can be used to provide power for VCONN (some cables have built-in electronics that requires power, usually these cables for TBT or 5A capable cables). 

    Thanks and Regards,

    Raymond Lin