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  • RE: LM5185: Power chip selection

    Hi Ivy, You may consider a LM25019 in a fly-buck topology. Please refer to https://www.ti.com/lit/ug/snva611b/snva611b.pdf, which was using LM25017 but you can replace the IC with LM25019 for your 40mA load applications. Thanks, Youhao

  • LM25019: Isolation rating of this spec

    TI Thinks Resolved
    Part Number: LM25019 Other Parts Discussed in Thread: LM5019 , TIDA-010006 This spec falls under the isolated flybuck converters line but I don't see any information regarding the isolation specs on the datasheet. Is it rated for 1.5kVrms or 3kVrms isolation…

  • LM25019: I want to use lm25019 ic in Flybuck topology with output of 5.2 volt at isolated side

    TI Thinks Resolved
    Part Number: LM25019 Other Parts Discussed in Thread: LM5017 Good morning I currently using the lm25019 ic for my project, but I read some article on Flybuck topology and read data on lm5017-19 ic. I simply used 1:1 coupled inductor instead of single…

  • Lm25019

    TI Thinks Resolved
    Other Parts Discussed in Thread: LM25019 I am having a issue with the formula given in the datasheet of lm25019 like calculation of switching frequency, inductor selection formula. Can you help me with these problems. Regards Sourabh
    • Answered

  • LM25019: LM25019 under voltage hysteresis value

    Resolved
    Part Number: LM25019 hello, i have a question for the LM25019 under voltage hysteresis value, see below description that from datasheet chapter 7.3.9 (Undervoltage Detector) "UVLO hysteresis is accomplished with an internal 20-μA current source that is…
    • Resolved

  • LM25019: EMI / EMC filter for LM25019

    Part Number: LM25019 We are working on the Isolated DC-DC converter with 24VDC input and 5VDC @ 10mA (Low cost solution) . With my initial search in TI Webench, found LM25019 which suit our requirement and has following queries regarding same Primary…
    • Answered

  • LM25019: Variation obseved in calculated and measured fsw

    Resolved
    Part Number: LM25019 Following are the specifications used to design a 15.2V sensor power supply, Vin = 24V ± 4%, Vout = 15.2V ± 4%, Iout = 90mA, fsw = 800KHz Following are the component values used, RFB1 = 1K, RFB2 = 11.5K, RON = 180K,…
    • Resolved
    • Answered

  • LM25019: Which is used, Vcc or External bias

    Resolved
    Part Number: LM25019 Hi, team. When VCC and external bias voltage is the same, which is used? Best Regards,
    • Resolved

  • UCC28084: CTRL and CS roles in the current mode feedback

    TI Thinks Resolved
    Part Number: UCC28084 Other Parts Discussed in Thread: LM25019 , TL431 Hello, This is my first time fully designing an isolated power supply. I am struggling with managing all of the design constraints: magnetics, power, slope compensation, isolated feedback…

  • lm25019 mathcad file

    Other Parts Discussed in Thread: LM25019 , LM5019 hi Would it be possible to get the mathcad file or calculation tool including body plot of the lm25019 COT? THANK YOU

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