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TUSB320LAI: Vbus capacitance at OTG mode.

Yusuke Mukuno
Expert 7395 points
Part Number: TUSB320LAI
Other Parts Discussed in Thread: TUSB320

Hi expert

Could you please let me know your recommendation of Vbus capacitance at OTG mode?

Thanks

Muk 

  • 0
    TI__Guru 64326 points

    Hi Muk,

    Please clarify one point, when you refer to "OTG mode" do you mean that TUSB320LAI is configured as a DRP (PORT = NC)? When referring to Type-C ports it is best to refer to port that can act as a USB Host (Source) or USB Device (Sink) as a Dual Role Port (DRP). 

    If you are referring to DRP mode of TUSB320LAI,  it will alternate between UFP and DFP depending on what is connecte. If the TUSB320 device connects as a UFP, the large bulk capacitance must be removed.