• TINA/Spice/LM27403DESIGN-CALC: TINA model or Design Tool Calculator

  

  Alon Blumenfeld

  TI Thinks Resolved

  Part Number: LM27403DESIGN-CALC Other Parts Discussed in Thread: TINA-TI , LM27403 Tool/software: TINA-TI or Spice Models Hi all, Could you help with the LM27403 TINA model or Design Tool Calculator? Currently the Design Tool Calculator is "Not Available…

  • over 8 years ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum
Answered

• RE: LM27403: LM27403 overcurrent

  

  David_Daniels

  Resolved

  The 5mohm is not in the current sense path. The schematic is showing dcr sensing, so the sense will be 3mohm. See figure 30 and 31 and the text on page 22 in datasheet. https://www.ti.com/lit/ds/symlink/lm27403.pdf There is an excel sheet to aid in…

  • 2 months ago
  • Power management
  • Power management forum
Answered

• RE: LM27403: What's optimizing logic or methodology of LM27403 for high/low side MOSFET in tool of DC/DC Power Designs

  

  David_Daniels

  Resolved

  Webench helps calculate the power dissipated image below. I believe the power dissipation and junction temperature are the key limitations . Ron and ThetaJA are used to estimate power dissipation and estimate the junction temperature of the fets.…

  • over 2 years ago
  • Power management
  • Power management forum

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