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Showing 29 results View by: Thread Post Sort by
  • LM5180DESIGN-CALC: LM5180DESIGN-CALC not working

    Miguel lopez
    Miguel lopez
    Part Number: LM5180DESIGN-CALC Tool/software: Hi, I've downloaded LM5180DESIGN-CALC sheet and says to me that the file is protected from edition. In this mode, I couldn't change parameters. If I give edition permits, the graphics disappear and i get…
    • over 1 year ago
    • Power management
    • Power management forum
  • LM5180DESIGN-CALC: Problem in simulation of LM5575

    Omkar Singh
    Omkar Singh
    TI Thinks Resolved
    Part Number: LM5180DESIGN-CALC Other Parts Discussed in Thread: LM5575 i am trying to simulated buck converter based on LM5575 in LT SPICE but getting below error. Please help me to resolve this. Error on line 1080 : .model u1:_sshdn:_sshdn vswitch…
    • 6 months ago
    • Power management
    • Power management forum
  • LM5180DESIGN-CALC: Unable to simulate with the spice model

    Abhilash Tirupathi
    Abhilash Tirupathi
    TI Thinks Resolved
    Part Number: LM5180DESIGN-CALC Other Parts Discussed in Thread: LM5180 , PSPICE-FOR-TI Hi I downloaded the PSpice transient model of the LM5180 from TI. When I attempt to run the provided evaluation circuit in LTspice, I encounter the following error…
    • 6 months ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • LM5180DESIGN-CALC: Problem in simulation of LM5575

    Omkar Singh
    Omkar Singh
    TI Thinks Resolved
    Part Number: LM5180DESIGN-CALC Other Parts Discussed in Thread: LM5575 , PSPICE-FOR-TI i am trying to simulated buck converter based on LM5575 in LT SPICE but getting below error. Please help me to resolve this. Error on line 1080 : .model u1:_sshdn…
    • 7 months ago
    • Power management
    • Power management forum
  • LM5180DESIGN-CALC: Why the transformer ration does not allow to go higher than 1:4 in your spreadsheet

    Frank Shen
    Frank Shen
    TI Thinks Resolved
    Part Number: LM5180DESIGN-CALC Other Parts Discussed in Thread: LM5180 We are design a high output voltage/input voltage ration flyback. We really like your spreadsheet, but why the transformer ration does not allow to go higher than 1:4 in your spre…
    • 8 months ago
    • Power management
    • Power management forum
  • Answered
  • WEBENCH® Tools/LM5180DESIGN-CALC: LM5180DESIGN-CALC

    Franz Drobner
    Franz Drobner
    Resolved
    Part Number: LM5180DESIGN-CALC Tool/software: WEBENCH® Design Tools Is it possible to process transformers with a turns ratio of 1 : n (n > 1) with the tool? For example, if I enter a turns ratio 1:2 I get the error message #VALUE!
    • Resolved
    • over 5 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • RE: WEBENCH® Tools/LM5180DESIGN-CALC: LM5180

    Orlando Murray
    Orlando Murray
    In the second file titled "example_lm5180.." there needs to be a Diode from SW to VIN to loop back that transformer current. The Zener may not always be necessary but the DF diode is. Also the EN resistor arrangement is incorrect. Did WEBENCH give…
    • over 6 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • Answered
  • LM5180DESIGN-CALC: LM5180 spreadsheet not working properly

    Stani Bell Ngoufack Tchoufack89
    Stani Bell Ngoufack Tchoufack89
    Resolved
    Part Number: LM5180DESIGN-CALC Other Parts Discussed in Thread: LM5180 Hello, my customer is currently designing the power supply for their isolated gate driver and they are currently evaluating the LM5180 with their transformer. However parts or macros…
    • Resolved
    • over 7 years ago
    • Power management
    • Power management forum
  • RE: LM5180: DCDC Converter +-15V

    Hareesh Babu Takasi
    Hareesh Babu Takasi
    Hello Lukas, There is no reference design based on your requirements to recommend the desired transformer, but you can contact transformer vendors for catalog parts or custom ones if required. You can use recommended transformer values from design…
    • 4 months ago
    • Power management
    • Power management forum
  • RE: LM5180-Q1: Contact circuit configuration of LM5180-Q1

    Hareesh Babu Takasi
    Hareesh Babu Takasi
    Hello Yoo Jin-seok, Thanks for designing with LM5180-Q1. Did you change any parameter other than transformer? Device should work using 1:1:1 transformer. Could you please share the transformer datasheet (both 1:1 and 1:1:1). what is your output requirement…
    • 3 months ago
    • Power management
    • Power management forum
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