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  • UCC28061: Can UCC28061 or UCC28070 be used for circuit design to boost low DC voltage?

    TI Thinks Resolved
    Part Number: UCC28061 Other Parts Discussed in Thread: UCC28070 , , UCC28180 Hello I am considering a circuit (3kW) that boosts a DC voltage of 36V to 300V. Can I use UCC28061 or UCC28070? If these cannot be used, I would like to suggest alternative ICs. Also…

  • UCC28061: Failsafe OVP

    TI Thinks Resolved
    Part Number: UCC28061 Hi Team, My Customer wants to clarify that it is indicated on the datasheet that IC does soft start after an over voltage situation but under "failsafe OVP" heading, it says no soft start after over voltage situation. Also…
    • Answered

  • UCC28061: Soft Start Condition

    Resolved
    Part Number: UCC28061 Hi, I am confused while trying to understand soft-start state of UCC28061. Does overvoltage condition detected through either HVSENSE or VSENSE pin cause soft start? According the datasheet, in the Failsafe OVP section, it is stated…
    • Resolved

  • UCC28061: Peak current around 0Vac

    TI Thinks Resolved
    Part Number: UCC28061 Hi, I used UCC28061 @ 1.5kW. It works well but I saw on grid current some peaks around 0vac. If I increase the power, the current increase too and the peak is less visible but in transient it is a trouble. How can I smooth the current…
    • Answered

  • UCC28065: CRM BRIDGELESS PFC

    Resolved
    Part Number: UCC28065 Other Parts Discussed in Thread: UCC28061 Hi Is it possible to design a bridgeless PFC using UCC28065?? Or is there any IC that can achieve CRM bridgeless PFC?? Thank you
    • Resolved

  • UCC28061: UCC28061 issue

    TI Thinks Resolved
    Part Number: UCC28061 Hello, My customer got urgent issue during 320W application test using UCC28061. In the prototype test, it was found that the PF value was unstable and accompanied by a large sound during 120Vac input, if the input voltage increased…

  • UCC28061: Issue during startup vs UCC28064, channels not interleaving

    Part Number: UCC28061 Other Parts Discussed in Thread: UCC28064 , , UCC28064A When recently testing the UCC28061 we had issues with the PFC during startup. It seemed as though for some duration the channels were not interleaving properly and therefore we…
    • Answered

  • UCC28061-Q1: Absolute maximum rating_TJ

    Resolved
    Part Number: UCC28061-Q1 Other Parts Discussed in Thread: UCC28061 Team, This part's recommendede operating temperature range is TA=-40 to 125C. However, TJ in absolute maximum rating has been specified as TJ=125C in operating. According to this relationship…
    • Resolved
    • Answered

  • UCC28061: Design problem power. What recommendation ?

    Resolved
    Part Number: UCC28061 Other Parts Discussed in Thread: UCC28064A , UCC256403 Dear TI, My context: I want to design a power supply with +-600W and I want to use a PFC. However it is my first time using a PFC so i would like it to simulate it in to LTspi…
    • Resolved
    • Answered

  • UCC28061: Looking for UCC28061 Calculation Tool

    Resolved
    Part Number: UCC28061 Other Parts Discussed in Thread: UCC28063A Hi Support team, My customer is looking for the excel/mathcad calculation tool for UCC28061, would you please kindly share the tool to us? Thanks a lot. Best Regards, Wei-Hao
    • Resolved

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