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TPS2546 schematic review

user4760726
Intellectual 1195 points
Other Parts Discussed in Thread: TUSB211, TPS2546

Hi Team,

One of our customers is going to use our TPS2546 for their product. Is it possible to have schematic review please? The schematic capture is shown below.  Also, do you have any recommendation on placing a USB redriver (TUSB211). My thought is SOC -> redriver (TUSB211) -> TPS2546 -> connector. Is it correct? Last, for this specific application, is there any power-on sequence required? Thanks for your time and support.

Leroy Song

  • 0
    TI__Expert 4065 points
    Hi Leroy,
    I have forwarded your questions to Apps engineers and will let you know as soon as I get a reply.
    Best,
    Haidar
  • 0 in reply to Haidar Hamoo
    TI__Expert 4065 points

    Ok, so here is what I got:

    1. Your customer needs to place C1802 Cap close to TPS2546 device.
    2. Place the TPS2546 device close to the USB connector and add a(min 120uF ceramic capacitor) to OUT terminal close to the USB connector.
    3. Yes you are right, place data re-driver (TUSB211) before TPS2546 but close.
    4. In both TPS2546 and TUSB211 datasheets there are layout guidelines, examples and recommendations your customer can follow to ensure devices' performance.

    BR,

    Haidar

    Please consider checking the "Verify Answer" button if I've answered your question.