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TS5A23159: How can auto detect from two Type C port

Eric Chen4
Expert 2370 points
Part Number: TS5A23159
Other Parts Discussed in Thread: TS3USB221, TUSB321

Hi,

Now I have a application about two Type C input then only one type C output.

If need to auto detect CC pin, may I know if have any Analog Switch solution that can Auto Switch to Right Type C after Detect Signal?

Block is below.

Regards,

Eric

  • 0
    TI__Mastermind 45340 points
    Eric,

    I'm sure what you mean by auto switch to the right Type C connector.

    If you plug a USB connector into Type C Con1 you want the Analog SW block above to detect something is plugged in and route only the CC pin to the CC pin node on the right of your diagram?

    If you plug a USB connector into a Type C Con2 you want the Analog SW block above to detect something is plugged in and route only the CC pin to the CC pin node on the right of your diagram?

    What do you want to have happen if there are two USB connectors plugged into both Type C Con 1 and 2?

    I think you are look for a device like the TSUSB321 device that will sense something is plugged into the CC line and then send out a GPIO status. Then you can use the GPIO status to toggle an analog switch like the TS5A23159.

    Thank you,
    Adam
  • 0 in reply to Adam Torma
    Expert 2370 points

    Hi Adam,

    If you plug a USB connector into Type C Con1 you want the Analog SW block above to detect something is plugged in and route only the CC pin to the CC pin node on the right of your diagram?  --> Yes

    If you plug a USB connector into a Type C Con2 you want the Analog SW block above to detect something is plugged in and route only the CC pin to the CC pin node on the right of your diagram?  --> Yes

    But I have one question about TS3USB221 send out a GPIO status, may I know which one?

    Thanks.

    Regards,

    Eric

  • 0 in reply to Eric Chen4
    TI__Mastermind 45340 points
    Eric,

    The TS3USB221 device is a passive FET switch and cannot do any detection or send status indication through a GPIO. This device simply switches between two ports based on the logic signal provided to the S pin.

    To do the detection and status indication you will need to use a device with more than just a passive switch like the TSUSB321.

    Thank you,
    Adam
  • 0 in reply to Adam Torma
    Expert 2370 points

    Hi Adam,

    Is it TUSB321, right? So I can use DIR pin to control Analog Switch direction?

    Update Block as below. Please kinldy check again.

    Thanks.

    Regards,

    Eric

  • 0 in reply to Eric Chen4
    TI__Mastermind 45340 points
    Eric,

    I will let the experts on the TUSB321 comment on their device but I believe this to be a viable solution.

    Thank you,
    Adam