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  • UCC28056: UCC28056: Circuit power consumption evaluation. And UCC28056 power consumption test method

    Part Number: UCC28056 Tool/software: Hi experts, When my client is using UCC28056. Input 220Vac, input power is 85W and output power is 80W. At this time, the conversion efficiency is 95%. But it is found that after disconnecting the load and optical…
    • Answered

  • UCC28056: Current sensing with the UCC28056

    Resolved
    Part Number: UCC28056 Greetings I have a design in development with the UCC28056 using a Navitas NV6138. This is an integrated GaN switch and driver stage. It includes a current sense pin that outputs a current in proportion to the current flowing through…
    • Resolved

  • UCC28056: UCC28056ADBVR- Power factor degradation

    Part Number: UCC28056 Hi team, •The COMP pin voltage is 1.888 V at 115 VAC, 35 W, 360 Hz, whereas it increases to 5.6 V at 130 VAC, 35 W, 360 Hz. •To maintain the desired output voltage, the COMP pin voltage increases, causing the controller to increase…
    • Answered

  • UCC28056: Regarding wave soldering for SMD

    Resolved
    Part Number: UCC28056 Hi support team. Regarding wave soldering for SMD , is there no problem if I follow the document below? www.ti.com/.../scea041.pdf www.ti.com/.../snoa040b.pdf www.ti.com/.../snoa550h.pdf Are there any restrictions? …
    • Resolved

  • UCC28056: Regarding the Rcs of the UCC28056

    TI Thinks Resolved
    Part Number: UCC28056 Tool/software: Hi team, My customer is considering using the UCC28056 and is evaluating it with the PFCLLCSREVM-034. Below is the schematic of the EVM. There are three current sense resistors connected in parallel on the source…

  • UCC28056: UCC28056

    TI Thinks Resolved
    Part Number: UCC28056 Tool/software: I want to design a PFC to meet the following requirements: Input voltage : 240VAC Input frequency : 50Hz Output voltage : 380V DC Output power : 180W Please provide a reference design.
    • Answered

  • UCC28056: Regarding the shutdown of the UCC28056.

    Resolved
    Part Number: UCC28056 Tool/software: Hi team, I have a question regarding the operation of the UCC28056. Is it acceptable to stop its operation by inputting an external signal to the COMP PIN and setting it to LOW? Best regards, Kyohei
    • Resolved

  • UCC28056: UCC28056DBVR: Abnormal output waveform despite valid I/O voltages

    TI Thinks Resolved
    Part Number: UCC28056 Hello TI Team, We are using the UCC28056DBVR . Although the input and output voltages meet the datasheet requirements, the output waveform is completely abnormal. I have attached the oscilloscope photos showing the incorrect…

  • UCC28056: UCC28056 Output voltage reduce while increasing power

    Part Number: UCC28056 Tool/software: Initially loaded 4W output and get 398V output voltage. After changed the power from 4W to 8W then output voltage drop to 372V..

  • UCC28056: UCC28056 issue

    Part Number: UCC28056 Other Parts Discussed in Thread: UCC28950 Tool/software: Hi, The customer Liyuan haina is debugging the 300W ACDC power with PFC (UCC28056A) + DCDC PSFB (UCC28950), now one issue for PFC is that at AC 250V input peak voltage with…

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