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  • TUSB321AI: TUSB321AI || DFP mode not working

    Resolved
    Part Number: TUSB321AI Other Parts Discussed in Thread: TUSB321 , HD3SS3212 , HD3SS3220 Dear TI Support, We have developed a custom board, and for the charging section we are using the TUSB321AIRWBR part. The part number is TUSB321AIRWBR. Our application…
    • Resolved

  • TUSB321AI: The CC issue for TUSB321AIRWBR

    Part Number: TUSB321AI Other Parts Discussed in Thread: HD3SS3212 , TUSB321 Hi, Our design is: USB 3.0 communication requires two sets of TX and RX differential pairs. But our ARM can only provide one set of TX and RX. Therefore, we use TI's TUSB321AIRWBR…
    • Answered

  • TUSB321AI: Some question and schematic review

    Resolved
    Part Number: TUSB321AI Other Parts Discussed in Thread: TUSB321 Hi, 1.ID Pin Functionality: Is the ID pin of the TUSB321 used to notify the system of its current operating mode (DFP, DRP, or UFP)? The datasheet mentions that when the TUSB321 is configured…
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    • Answered

  • TUSB321AI: Test board of TUSB321AI does not work

    Resolved
    Part Number: TUSB321AI Other Parts Discussed in Thread: TUSB321 Tool/software: In thread TUSB321AI: TUSB321 configurations . I asked several question about the operation of the TUSB321AI. Thinking I understood everything, I built a small test board to…
    • Resolved

  • TUSB321AI: TUSB321AI ID Pin to Enable Power Supply?

    Part Number: TUSB321AI Other Parts Discussed in Thread: TUSB320 Tool/software: Can I use TUSB321AI ID Pin to enable VBUS power switch like UTSB320 Figure5 example in https://www.ti.com/lit/wp/slly016/slly016.pdf ? I want to implement and autonomous…

  • TUSB321AI: Will power role change during VDD in?

    TI Thinks Resolved
    Part Number: TUSB321AI Other Parts Discussed in Thread: TUSB321 , Hi Team, When VDD_5V is not present, VDD is without power. And a tablet is connected to type C (supporting OTG), the pad provides VBUS power internally. If VDD is powered on again at…

  • TUSB321AI: DIR Pin not working

    Part Number: TUSB321AI Tool/software: Hi there, I'm currently working on a design with the TUSB321AI, USB 3.0 Mux and an USB C Host Port. However the TUSB321AI never changes the value of the DIR Pin to switch the Mux around. I confirmed that both…

  • TUSB321AI: USB-C Display Port Configuration

    TI Thinks Resolved
    Part Number: TUSB321AI Other Parts Discussed in Thread: TUSB564 Tool/software: Will this part work in a configuration where the USB-C is being used as a display port? Additionally, is there a recommended switch chip to pair with this? Does it simply…
    • Answered

  • TUSB321AI: TUSB321

    Resolved
    Part Number: TUSB321AI Other Parts Discussed in Thread: TUSB321 , TUSB320 Tool/software: Hi We want to use the TUSB321 in DRP (dual role port) mode. Therefore the PORT pin is unconnected. Do I need some resistors on my board on the CC pins or must they…
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    • Answered

  • TUSB321AI: Behavior when VDD is OFF

    Resolved
    Part Number: TUSB321AI Tool/software: I am using a TUSB321AI. When no power is supplied to the VDD of this device (OFF), will CC1 and CC2 be on the Rd side? Or will they be High-Z? In other words, when the power is OFF, will it appear to be a UFP device…
    • Resolved

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