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Original question:

TINA/Spice/UCC28070: difference between average and transient model

UCC28070: Auxiliary Supply

Pratham Regundwar
Prodigy 40 points
Part Number: UCC28070
Other Parts Discussed in Thread: UCC28C42, UCC28701, UCC28742

Please can you suggest me Auxiliary power supplies to be used in a circuit  with UCC28070 PFC Controller Model. Suggest as in could you please state the model numbers of the auxiliary supply and relevant ICs. 

  • 0
    TI__Guru* 85896 points

    Hello,

    If you don't need isolation you can always use a UCC28C42 in a simple fly back.

    If you need an off line bias supply with opto feedback or primary side PSR control, you can use the UCC28742 (Opto feedback) or the UCC28701 (PSR) control.

    There are many reference designs available in the 5 to 10 W range.  The following links will bring you to there product pages.

    TI might already have a reference design for you.  The following link will bring you TI's reference designs.  You just enter your input and output power requirements in find power reference design parameters and it will search TI's design archive.

    Regards,