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  • LM5160A: Flybuck practical Circuit not working as simulation results

    TI Thinks Resolved
    Part Number: LM5160A Hi I'm designing a Flybuck DC-DC converter using the LM5160A. The design has an input voltage in the range of 25 V to 45 V. I have designed for an output of 12.5 V on the primary side and 14 V on the secondary side. I simulated…
    • Answered

  • LM5160A: FlyBuck: does the Flybuck output GND need to be isolated?

    Resolved
    Part Number: LM5160A My customer has the following questions: I’m intrigued by the “Flybuck” topology. I have a couple questions regarding it. It appears the GND/references are isolated between the primary and secondary sides. Is it required for…
    • Resolved

  • RE: LM5160A: Flybuck EMI issue

    Hello Mattia, For the Transformer stack, I suggest the following. The Primary should "sandwich" the secondary's. By this, I mean, winding half the primary first, then insert the secondary's and then finish off the second half of the primary. I would…

  • RE: WEBENCH® Tools/LM5160A: 3.3V output

    Please check the design on ti.com for transformer part number. Thanks and Regards, Atul
    • Answered

  • LM5160A: FLYBUCK-FLYBACK-DESIGN-CALC. xlsx Has user cells locked.

    Resolved
    Part Number: LM5160A Customer just downloaded and tried to use this design tool (Calculator_Rev1p03.xlsx) from the website. However, the user cells for compensation components (cells B120, B122, B124, B126, and B128 on tab Fly-Buck-Boost) are permanently…
    • Resolved

  • RE: LM5160A: device can't work properly after change the primary side output capacitor

    Betty, Flybucks have limitations on maximum duty cycle based on the leakage inductance of the transformer. See this document, especially figure 4 . This may be your issue more than the output capacitance. -Sam

  • LM5160A: Negative output DC/DC

    Part Number: LM5160A Other Parts Discussed in Thread: LM5160 Hi, I'm trying to generate a negative 12V output from a +12V input using the LM5160A, but am finding it cannot supply the 500mA I need without going unstable. Please can you have a check…

  • LM5160A: Question about transformer in isolated supply

    Part Number: LM5160A Other Parts Discussed in Thread: LM5160 , TIDA-00199 Hi everyone, I have question about GT03-122-037-B transformer model of Ice Components, This transformer have 2 seconder as 1:2.5:2.5. I am planning to obtain 20V and -5V for driving…

  • LM5160A: Could you tell me about Flybuck?

    Part Number: LM5160A Other Parts Discussed in Thread: PMP , LM5160 Hi, team. I often reference the following devices and documentation when introducing isolated DC/DC. Devices: LM5160A TI-design document: www.tij.co.jp /.../ PMP 10532 So question…

  • TINA/Spice/LM5160A: LM5160 Input power supply

    TI Thinks Resolved
    Part Number: LM5160A Other Parts Discussed in Thread: TINA-TI , LM5160 Tool/software: TINA-TI or Spice Models Hello everyone, I am using the LM5160 to create 20V and -5V isolated supply. Vin=24V, Soft start=30ms, after 30ms I have resistors…

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