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TUSB8020B: Asking for the TUSB8020B schematic design suggestion

SHH
Mastermind 32566 points

Part Number: TUSB8020B

Hi Sir,

 

My customer would like design TUSB8020B.

Would you please review schematic and layout and provide your comment?

 

 https://txn.box.com/s/b40o2hdymx9zcy6jwph766yi8w00ouvo

BR,

SHH

  • +1
    TI__Guru 60870 points

    Hello SHH,

    Schematic feedback:

    • Add AC caps to Port 2 TX lines.
    • USB_VBUS is an input to the hub and should only be high when an active hub is connected.
    • Adding a pullup on the PWRCTL lines enables battery charging on that port.
    • The capacitor on GRSTz may need to increase to 2 uF if the power on ramp times are slow.

    Regards,

    JMMN