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  • LM3481: Webench simulation tool error

    Part Number: LM3481 There is an error in Webench power tool while simulating using following conditions: SEPIC converter using LM3481 controller IC Vin: 6.6-40V, Vout:18V, Iout_max: 1A, freq: 340kHz, max temp: 105 deg C

  • LM3481: Power MOS burn down at Drain

    Part Number: LM3481 Hi, I use LM381 to boost from about +8V (V_CHG_OUT) to +40V and -40V (right side of transformer) But sometimes my Power MOS might be broken by burn down at Drain The Power MOS I used is SPR100N03, spec as below. Also my schematic…

  • LM3481: Design review

    TI Thinks Resolved
    Part Number: LM3481 Hello Guys, Our customer designed a regulator with the LM3481 on WEBENCH (attached the design). With no load all works. With 4 Ohm load all works until the input voltage drop under 10V ( attached some picture at 12V and 10V). Any…

  • LM3481: Lowest Fsw support

    TI Thinks Resolved
    Part Number: LM3481 Hi Team, I would like to know if I set Fsw = 70kHz. Do we have any risk of LM3481 by using this Fsw? (IC level) Roy
    • Answered

  • RE: TINA/Spice/LM3481: LM3481 synchronization Duty,max?

    Resolved
    Hi User, I have gotten confirmation from our design team that the sync pulse width should not affect the max duty cycle. It seems to be an issue of spice model. As you may know, model always have some small flaws when comparing with the real part.…
    • Answered

  • LM3481: Output Voltage when Input Voltage is Increased Gradually

    Resolved
    Part Number: LM3481 Hello, I have a question of LM3481 SEPIC circuit in our design. Input voltage of our system ranges from 4.75V to 24.5V, output voltage of SEPIC circuit is 5V (VCC in the schematics below) with up to 1.2A capacity. This VCC is converted…
    • Resolved

  • LM3481: Regulator design from LM3481

    TI Thinks Resolved
    Part Number: LM3481 Other Parts Discussed in Thread: LM25118 Hello I'm using LM3481 in my project. My requirement is to get 12V output with 2A current from a input voltage ranging from 9-30V. 1. Is it possible design a regulator from LM3481 with my…

  • WEBENCH® Tools/LM3481: Unable to load SEPIC to Full load @8V using LM3481.

    TI Thinks Resolved
    Part Number: LM3481 Tool/software: WEBENCH® Design Tools Hi, I am trying to design Sepic converter using LM3481 with the below sepicifications. I did simulation in Pspcie tool. Also find the attached diagram of Simulation Input range - 6V-32V …

  • WEBENCH® Tools/LM3481: Unable to load SEPIC to Full load @8V using LM3481.

    TI Thinks Resolved
    Part Number: LM3481 Tool/software: WEBENCH® Design Tools Hi, I am trying to design Sepic converter using LM3481 with the below sepicifications. I did simulation in Pspcie tool. Also find the attached diagram of Simulation Input range - 6V-32V …

  • WEBENCH® Tools/LM3481: Unable to load SEPIC to Full load @8V using LM3481.

    TI Thinks Resolved
    Part Number: LM3481 Tool/software: WEBENCH® Design Tools Hi, I am trying to design Sepic converter using LM3481 with the below sepicifications. I did simulation in Pspcie tool. Also find the attached diagram of Simulation Input range - 6V-32V …

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