230-V, 3.5-kW PFC with >98% Efficiency, Optimized for BOM and Size Reference Design
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Key Document


The TIDA-00779 is a 3.5-kw, cost competitive power factor regulator converter designed for room air-conditioner and other major appliances. This reference design is a continuous-conduction-mode (CCM) boost converter implemented using TI’s UCC28180 PFC controller provided with all of the necessary built-in protections. The hardware is designed and tested to pass surge, and EFT testing as per the IEC61000 requirements for household appliances.

  • High efficiency of > 98% over entire operating voltage range and thus get smaller heat sink
  • Wide full load operating input range of 190 VAC to 270 VAC
  • High power factor > 0.99 and less than 5% THD from medium-to-full load (50-100%)
  • Up to 3.5 kw high power output to cover most of single phase input PFC application
  • 8-Pin PFC solution (No AC line sensing Needed)  enable a very simply design
  • Reduced current sense threshold minimizes power dissipation
  • High power density for smaller dimension

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMT01  0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
UCC27531  2.5-A/5-A single-channel gate driver with 8-V UVLO, 35-V VDD, and split outputs  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC28180  18kHz-250kHz CCM PFC controller with Enhanced Start-up and Transient Response  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LMT01 Download -
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UCC27531 Download Download
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UCC28180 Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 2337 16 Oct 2017
Design files (6)
Title Type Size (KB) Date
ZIP 119 11 Jan 2016
ZIP 460 11 Jan 2016
PDF 566 11 Jan 2016
PDF 102 11 Jan 2016
PDF 221 11 Jan 2016
PDF 250 11 Jan 2016

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