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UCG28826: Can the secondary side use diode rectification?

Kyohei
Expert 1480 points
Part Number: UCG28826

Tool/software:

Hi team,

The secondary side of the UCG28826 is recommended to use a synchronous rectification method for the SR Controller, but is it okay to change it to a diode rectification method?

Best regards,

Kyohei

  • 0
    TI__Guru* 86266 points

    Hello,

     

    I have not had a chance to look into this due to other priorities and customer support.  I will try to look into this tomorrow for you.

     

    Regards,

  • +1 in reply to Mike O'
    TI__Guru 50190 points

    Hi Kyohei,

    From the UCG28826 perspective, there is no issue, but from the USB PD Tolerance perspective there could be as VOUT would drop more with a diode as a function of load current than with the SR controller. 

    My understanding is that the USB Type C PD standard has tight specifications on output voltage. 

    I hope this answers your question.