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PFC converter with the UCC28019

didier LE CORNEC
Prodigy 60 points
Other Parts Discussed in Thread: UCC28019, UCC28019A, UCC28070

Hi,

I am working on a 2,5kW (ideal 3kW) PFC converter (Vout = 390V). I think to use the UCC28019. Could you say me if is it possible with this components ?

Thanks for yours helps.

Regards

Didier LE CORNEC

Trappes (FRANCE)

  • 0
    TI__Genius 15910 points

    It is possible to use this device at this power level but a fixed frequency controller may not be the optimium choice at this power level when considering efficiency, size, and cost.  Also, if you do opt to use the UCC28019 plaes use the UCC28019A as it has improvements over the non-A version that avoid audible noise.

  • 0 in reply to Lisa Dinwoodie
    Prodigy 60 points

    Hi Lisa,

    Thank you for your help. I am sorry for my english, it is not good.

    I have seen on the forum that some people have used the UCC28070 to do a PFC supply about 3kW and more.

    What do you think about the UCC28070 ?

    Do you think that the UCC28019A is better  than the UCC28070 for a PFC converter of 3kW ?

    Have you some sample schematics ?

    Thank you

    Regards

    Didier.

  • 0 in reply to didier LE CORNEC
    Expert 1920 points

    Use the UCC28070 and then concider if you want to run it as a 4PH PFC. There is examples in the datasheet and eval-board papers.

    2PH/4PH SMPS as PFC has large advantages over single phases such as smaller ripple current on your output capacitors and the EMI is easier to cope with on the input.

    Your overall magnetic volume will also be smaller with a 2PH than on a 1PH.