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  • LM5156-Q1: LM5156-Q1 Jitter Frequency Strategy

    Part Number: LM5156-Q1 Hi,dear designer: Why does the frequency dithering strategy of the LM5156-Q1 include high-frequency dithering? What is the rationale behind this design? The presence of high-frequency dithering causes the flyback in my current…

  • LM5156-Q1: Flyback converter using LM5156 going to pulse skipping mode

    Part Number: LM5156-Q1 Other Parts Discussed in Thread: LM5156 Flyack converter designed for Vin input voltage from 6V to 16V and power output of 14W. At start when the flyback converter was having minimum load, it was going unstable and after observing…

  • LM5156-Q1: Spice simulation of LM5156

    TI Thinks Resolved
    Part Number: LM5156-Q1 Other Parts Discussed in Thread: LM5156 Hi Team, We tried to do spice simulation for LM5156(Vin=5V, Vout=12V, I out=1A), but we didnt get the expected output. The gate pin in the IC shows no pulsating voltage, there by no switching…

  • LM5156-Q1: Simulation support

    Part Number: LM5156-Q1 Other Parts Discussed in Thread: LM5156 I had utilized the flyback simulation of LM5156 provided by the TI itself. I had done some modifications in that for getting 28V as output since the TI provided simulation is for output 5V…

  • LM5156-Q1: WEBENCH Design Simulation

    TI Thinks Resolved
    Part Number: LM5156-Q1 For this LM5156-Q1 part i can't able to simulate in WEBENCH , i need to simulate this design in WEBENCH is there any way to simulate.

  • LM5156-Q1: External circuit design

    Part Number: LM5156-Q1 Other Parts Discussed in Thread: LM5156 Hello, I have attached pictures of the flyback circuit application of LM5156 chip. As you can see in first picture is that we use this chip to provide drive signal controlling the…
    • Answered

  • LM5156-Q1: Request for review of schematics

    Resolved
    Part Number: LM5156-Q1 Hello, We are seeking review for schematics of boost converter attached with this post. 70V 2A.pdf Please review and let us know if this looks great functionally and thermally and if there is improvement needed. There won…
    • Resolved

  • LM5156-Q1: What happen when load current is really high at really short duration but average current is really low?

    Part Number: LM5156-Q1 Other Parts Discussed in Thread: LM5156 HI team, What happen when boost load current is really high (ex. 10A) at really short duration, which leads output voltage dip? We cannot use rellay high output cap and average output current…

  • LM5156-Q1: Current consumption during OVP

    TI Thinks Resolved
    Part Number: LM5156-Q1 Other Parts Discussed in Thread: LM5156 My customer wants to use LM5156 in boost configuration to boost when the vehicle 12V battery is low. Under normal operating conditions the battery will be higher than the set point of the…

  • LM5156-Q1: LM5156 - Not getting expected output

    Part Number: LM5156-Q1 Other Parts Discussed in Thread: LM5156 I'm working with the LM5156 chip in the flyback non-isolated configuration and I am not getting the expected output. Vin = 15V Vout expected = 1.2kV-1.5kV Vout actual = 840V LM5156…

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