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UCC28810: UCC28810 for single stage with CV

Part Number: UCC28810
Other Parts Discussed in Thread: UCC28050

Hi E2E

My customer wants to replace XDPL8219 of Infineon, the application as follows.

Input voltage: 90~277Vac
Output voltage: 40~50Vdc / 60W
Need THD and CV mode

Can UCC28810 meet this requirement or another IC with CV mode?

Thanks and best regards

Rock Shao

  • Hello Rock,

    Thank you for your interest in TI PFC.

    TI has some PFC controllers that can be used in isolated single-stage flyback mode, but does not have a pin-to-pin replacement for the Infineon part.

    Both UCC28810/11 and UCC28050/51 can be used for this application. 



  • Hi Ulrich,

    Thanks for your answer, the XDPL8219 of Infineon has CV mode of output, but I didn't see both UCC28810/11 and UCC28050/51 has this function.

    Is there any relevant information?


    Best regards


  • Hello Rock,


    The normal operating mode of almost all PFC controllers is in constant-voltage (CV) mode, whether in non-isolated boost or isolated-flyback. The vast majority of PFC applications use CV regulation.
    Highlighting CV control is simply stating the obvious.

    For certain LED-driving applications in constant-current (CC) mode, additional circuitry (current sensing and reference, and error-amp over-ride) must be added to accomplish that. This can be done whether the topology is isolated single-stage flyback or non-isolated boost, provided that the error amplifier output is available as a pin on the package.

    For a competitor to list CV operation in a bulleted “Features” list is simply a marketing tactic to increase the size of the list.


    UCC28810/11 and UCC28050/51 are all normally CV controllers, and can also be CC controllers, isolated or not, depending on how the feedback network is configured.




  • Hi Ulrich,

    One more question, for UCC28810/11 and UCC28050/51, can be reached to 150W design and DOE VI? thanks.

    Best regards


  • Hello Rock,

    Yes, all of these controllers can support 150W output power.

    For 49W < Pout < 250W, DoE-VI requirement for average efficiency = 88% minimum.

    The user guide for reference design PMP4334 indicates that it can achieve > 89% average efficiency.

    For your customer's specific design(s), the choice of the power stage components will determine whether it will meet the DoE requirement or not. Low-loss semiconductors and transformer material should be chosen. Too much cost-cutting may result in excessive losses.