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  • UC2854B-EP: Is Rb1 required with the B version of the part?

    TI Thinks Resolved
    Part Number: UC2854B-EP Section 9.2.2.9 of datasheet (SGLS318A –NOVEMBER 2005–REVISED NOVEMBER 2015) discusses connecting a resistor (Rb1) from Vref to pin 6. Page 5 of SLU177A (Revised December 2005) seems to indicate that this resistor (R11) is not…

  • UC2854B-EP: How to calculate Rsp resistor using current transformer with positive output

    TI Thinks Resolved
    Part Number: UC2854B-EP In this document on page 16 figure 11. I'm not able to find how to calculate the value Rsp? Is the resistor Rsp the same value as Rs?

  • UC2854B-EP: How to improve PF and current harmonics for 115Vac application at 600hz to 900Hz line frequency range

    TI Thinks Resolved
    Part Number: UC2854B-EP We need to improve PF and current harmonics performance for PFC converter during 122vac and line frequency range of 500hz to 900hz. Converter details Input: 100V to 122Vac, 400hz to 900hz sinewave / Output : 215Vdc, 150W /…

  • UCC2818-EP: UCC2818-EP and UC2854-EP

    TI Thinks Resolved
    Part Number: UCC2818-EP Other Parts Discussed in Thread: UC2854B-EP , UC2854 , UCC2818 Tool/software: Hi TI team I would like to know which among these PFC ICs (UCC2818-EP and UC2854-EP) can have <5%THD on the input current for input frequency of…
    • Answered

  • RE: UCC2818-EP: Extremely low temperature operation

    Resolved
    Hi, Itoh You are correct, UC2854B-EP also meet your request, and can work in -55degC environment. Yunsheng

  • UCC2818: IAC pin voltage

    TI Thinks Resolved
    Part Number: UCC2818 Other Parts Discussed in Thread: , , UC2854 , UC2854B , UC2854A , UC3854A , Hi team, Customer has a question regarding the UCC2818 (and its equivalents like UCC2818-EP and UCC2818A-Q1): What is the voltage at the IAC input? This…

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