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


Design files


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
Output voltage options TIDA-00779.1
Vin (Min) (V) 85
Vin (Max) (V) 270
Vout (Nom) (V) 390
Iout (Max) (A) 9
Output Power (W) 3510
Isolated/Non-Isolated Non-Isolated
Input Type AC
Topology Boost- Non Sync
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC2818018-kHz-250-kHz CCM PFC controller with enhanced startup & transient response

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Low-side drivers

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Technical documentation

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Type Title Date
* Design guide 230-V, 3.5-kW PFC With >98% Efficiency, Optimized for BOM and Size Ref Design (Rev. C) Oct. 16, 2017
Technical article How to design an efficient and cost-competitive choke in PFC applications PDF | HTML Jul. 17, 2017
Technical article Is PFC possible without input voltage sensing? PDF | HTML Sep. 14, 2016

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