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HD3SS6126: USB-C Filp application

Tim Liao
Prodigy 20 points
Part Number: HD3SS6126
Other Parts Discussed in Thread: HD3SS612, HD3SS3415, HD3SS3212, HD3SS3220,

Tool/software:

Hi TI Team,

Could I use HD3SS6126RUAR to handle the USB-C(type) flip/non-flip states.

Tim

  • 0
    TI__Mastermind 24440 points

    Hi Tim,

    When you mean USB-C type flip/non flip states are you talking about Downward Facing and Upward Facing port operation.

    The  HD3SS612  ss signal path can support USB 3 data rates 5 or 10Gbps  and this is important because usb type c is a  just a interface that can operate on USB 3  speeds.

    Another device that can support usb c speeds( usb 3 5Gbps or 10 Gbps) is the HD3SS3415 and more info on that can be found on this thread

     I believe the better options here that can support UFP and DFP are the HD3SS3212 or HD3SS3220 as this opertion is called out on the datasheets.

    Please let me know what you think with this information and I can look into this some more.

    Regards,

    Kameron

  • 0 in reply to Kameron Hill
    Prodigy 20 points

    Hi Kameron,

    Thanks for your reply,
    We have the  HD3SS6126 parts in stock, and we want to use it to solve the USB-C type flip/non flip states.
    At the same time, We want to confirm whether there will be any unexpected risks in this application, such as the time of switching...

    Regards,

    Tim

  • 0 in reply to Tim Liao
    TI__Mastermind 24440 points

    Hi Tim,

    Looking into this more the  HD3SS6126  alone is not recommended for USB-C type flip/non flip states(UFP and DFP role)

    If you want to use the HD3SS6126 in this application you will need to add a redriver to your circuit to handle DFP and UFP( Here is a thread that talks- about this idea)

    The best device you can use for this flip/non flip states is the HD3SS3220 as it has a integrated  Channel Configuration (CC) logic which helps change the device state to UFP or DFP automatically.  This device can automatically handle either type c cable orientation( upside down or right-side up) because of its internal CC controller.

    Please let me know if you need any further assistance here

    Regards,

    Kameron

  • 0 in reply to Kameron Hill
    Prodigy 20 points

    Hi Kameron,

    The redriver is a solution to detect USB-C flip/non flip states.

    If there is a PD controller to handle USB plugged-Flip state and notify HD3SS6126 in my system.

    What problems does this solution cause?

    Regards,

    Tim

  • 0 in reply to Tim Liao
    TI__Mastermind 24440 points

    Hi Tim,

    I am not really a expert on PD controllers but your solution using the PD controller and  HD3SS6126 looks to be  correct.

    This design solution is actually talked about on some older e2e threads.

    Please let me know if you need any further assistance here

    Regards,

    Kameron