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  • LM5046: Switching Frequency and Oscillator Frequency

    TI Thinks Resolved
    Part Number: LM5046 Other Parts Discussed in Thread: LM5035 Tool/software: Hello E2E Experts, Good day. In LM5046 and LM5035, there is no Dmax. I can't calculate the switching frequency. So these components can make up to 2MHz oscillator frequenc…

  • LM5046: Unencrypted Pspice Model Request

    TI Thinks Resolved
    Part Number: LM5046 Tool/software: Can you provide an unencrypted pspice model for the subject part number? Regards, R. McCoy

  • LM5046: UNABLE TO OBTAIN HIGH SIDE OUTPUTS

    Part Number: LM5046 Hi everyone, I am currently working with the IC LM5046MH/NOPB and trying to achieve a phase shifted full bridge operation. I am trying to generate the phase shifted PWM pulses for the switching MOSFETs. I am able to achieve the PWM…
    • Answered

  • LM5046: full bridge converted to phase shifted full bridge

    Resolved
    Part Number: LM5046 Other Parts Discussed in Thread: LM5045 , We currently use LM5045 in full bridge DC-DC converter; the Xfmr sec. output is a single winding and it too is a full bridge topology using 4 synch rectifiers controlled by two UCC21225's, one…
    • Resolved

  • LM5046: Cannot go minimum duty (maximum phase shift)

    Part Number: LM5046 Hi All, I have a question regarding the output of the LM5046, the datasheet says the duty can vary from 0-100% with the COMP pin varying between 1 mA to 0 mA. In my design, the switched voltage waveforms of the PSFB converter reach…
    • Answered

  • LM5046: LM5046 - COMP Pin Related, Controlling Primary Current Only

    Resolved
    Part Number: LM5046 Hey All, I have a question about the LM5046 (Phase-Shift Controller), I am doing current control for the PSFB application, I checked that the COMP pin takes input as current, Is there any other way to converter voltage equivalent …
    • Resolved

  • LM5046: Thermal issues with PWMs at 1 MHz!

    Part Number: LM5046 Hi All, I'm using LM5046 for a custom application which involves running the oscillator at ~2MHz (RT Resistor = 4.7K), hence the PWMs at 1 MHz. With this, I have connected the output of LM5046 (LO1/HO1, LO2/HO2) to the gate driver…

  • LM5046:irregular minimum duty cycle problem

    TI Thinks Resolved
    Part Number: LM5046 Other Parts Discussed in Thread: TL431 LM5046을 사용하여 300W DC/DC 컨버터를 설계하고 테스트하고 있습니다. 무부하 및 경부하 조건에서 변압기의 최소 듀티 사이클(최소 출력 전압에서 부하가 없는 고전압 입력 또는 출력)에 도달하면 컨트롤러가 불규칙한 제어 펄스를 생성하여 기본에서 작은 교차 전도를 생성합니다. 풀 브리지 MOSFET이 수행합니다. 조건에서 컨트롤러는 일부…
    • Answered

  • LM5046: Regarding Replacement of LM5045 with LM5046

    Resolved
    Part Number: LM5046 Other Parts Discussed in Thread: LM5045 , , UCC3895 Hello, We are using LM5045SQ WQFN 5x5mm on our products. One question is "Is it possible to just replace LM5045 with LM5046 without much change?" I saw their packages are…
    • Resolved

  • LM5046: Huge reflection Power Supply spikes when Board is inserted

    TI Thinks Resolved
    Part Number: LM5046 Other Parts Discussed in Thread: TPS2393 , LM5064 We are having issues with new hotplug used on latest board developments. Customer has complained that when they insert one board in the chassis, other boards already inserted are affected…

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