Power factor correction (PFC) controllers

PFC controllers with the highest efficiency and lowest THD for high-voltage applications

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Our PFC controllers offer the highest efficiency and lowest standby power and superior power factor and current distortion for switched-mode power supplies (SMPS). Meet challenging standards such as Department of Energy level VI and European Union Code of Conduct Tier 2. From critical conduction mode and transition mode to continuous conduction mode PFCs, we have them all.

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Single-phase transition mode (TM)

Use in low- and medium-power designs to deliver excellent light-load efficiency and low-power over all load conditions.

Single-phase critical conduction mode (CCM)

Use in medium- to high-power applications for a smaller footprint and easier layout options.

Interleaved TM and CCM

Use in medium- to high-power applications.

Find your PFC controller

Power density

Minimize your solution size while maximizing your efficiency

Our PFC controllers offer higher switching frequency ranges for minimizing inductor size. Additionally, many solutions leverage burst mode to provide high light-load efficiency and eliminate the auxiliary flyback when paired with inductor-inductor-capacitor (LLC) or synchronous rectifier (SR) controllers. Our interleaved controllers enable multiphase design and parallelization for scalability. 

Featured products for power density
UCC28065 ACTIVE Natural Interleaving™ transition-mode PFC controller with high-frequency switching
UCC28064A ACTIVE Natural Interleaving™ transition-mode PFC controller with high light-load efficiency
UCC28056 ACTIVE 6-pin high performance CRM/DCM PFC controller

Technical resources

Video series
Video series
Power factor correction (PFC) basics and design considerations
This video series discusses PFC basics, topology comparisons and design considerations to achieve a cost-optimized and efficient PFC design.
Application note
Application note
Optimizing Efficiency and Standby Power With the UCC28056 in Offline Application (Rev. B)
This note reviews the UCC28056x architecture and how features such as burst-mode empower designs to meet challenging modern power requirements.
document-pdfAcrobat PDF
Product overview
Product overview
PFC Controller Step-by-Step Selection Guide
This document provides an overview of PFC controllers and detailed information on how to select the right device for your application.
document-pdfAcrobat PDF

Discover featured applications

Power delivery
Enable high efficiency and power density with our low-cost, small-footprint, sophisticated PFC solutions
TV
Achieve low-profile designs with high power density, high efficiency and low total harmonic distortion (iTHD) with our PFC controllers
HEV/EV on-board charger (OBC) & wireless charger
Enable low-cost onboard charging solutions with faster development cycles with our automotive-qualified PFC controllers

Enable high efficiency and power density with our low-cost, small-footprint, sophisticated PFC solutions

In consumer electronic AC/DC power supplies, cost is often a primary design constraint. Our analog PFC controllers help you minimize common design and development costs ultimately improving your cost to market.

Benefits:

  • A high switching frequency reduces inductor footprint and system bill of materials.
  • Transitional mode operation minimizes power loss across the load with silicon field-effect transistors.
  • Easier system design requires no firmware development.

Featured resources

REFERENCE DESIGNS
  • PMP22087 – 336-W Auxless AC/DC power supply reference design with 80 PLUS platinum compatible performance
  • PMP21366 – 700-W interleaving transition-mode PFC reference design
  • PMP11062 – Universal AC Input, 380V/1kW CCM Boost Power Factor Regulator Reference Design
PRODUCTS
  • UCC28056 – 6-pin high performance CRM/DCM PFC controller
  • UCC28180 – 18-kHz-250-kHz CCM PFC controller with enhanced startup & transient response

Achieve low-profile designs with high power density, high efficiency and low total harmonic distortion (iTHD) with our PFC controllers

As TVs increase in size while decreasing in width, our interleaved two-phase power factor correction controllers maximize power density and efficiency while minimizing standby power.

Benefits:

  • Switching frequencies as high as 800 kHz enable a smaller inductor footprint (especially height).
  • An interleaved design reduces the input current ripple and minimizes electromagnetic interference and iTHD.
  • Transitional mode operation minimizes power loss across the load with silicon field-effect transistors.

Featured resources

END-EQUIPMENT / SUB-SYSTEM
REFERENCE DESIGNS
  • TIDA-010015 – 94.5% Efficiency, 500W industrial AC-DC reference design
  • PMP21366 – 700-W interleaving transition-mode PFC reference design
PRODUCTS
  • UCC28064A – Natural Interleaving™ transition-mode PFC controller with high light-load efficiency
  • UCC28065 – Natural Interleaving™ transition-mode PFC controller with high-frequency switching

Enable low-cost onboard charging solutions with faster development cycles with our automotive-qualified PFC controllers

While EV onboard charging applications frequently include digital controllers, our analog controller solutions offer advantages as well.

Benefits:

  • Low-cost and low-power-consumption options are a good fit for two-wheelers, e-bikes and e-scooters.
  • Easier system design requires no firmware development.
  • Faster control loops enable a better transient load response.

Featured resources

REFERENCE DESIGNS
  • PMP40261 – 800-W High efficiency bridgeless Power Factor Correction (PFC) reference design
  • PMP8740 – 2-kW industrial AC/DC battery charger reference design with 92% full-load efficiency
  • PMP11211 – Universal AC Input, 200kHz 380V/1kW CCM Boost Power Factor Regulator Reference Design
PRODUCTS
  • UCC28070-Q1 – Automotive two-phase interleaved continuous conduction(CCM) mode PFC controller
  • UCC2818A-Q1 – Automotive 6kHz to 220kHz CCM PFC controller with 10.5V/10V UVLO and smaller gate drive resistor

Design & development resources

Reference design
180-W universal input PFC + LLC TV power supply reference design
This AC to DC power supply design for TV application provides 12-V, 5-A and 150-V, 0.8-A output from universal AC voltage (90 Vac to 264 Vac). The design uses CRM/DCM PFC controller UCC28056, and LLC controller UCC256404 with enhanced burst mode which enabled for low standby power and smaller (...)
Evaluation board
300W interleaved PFC pre-regulator evaluation module
The pre-regulator uses the UCC28064 transition mode interleaved pfc controller to shape the input current wave to provide power factor correction. This device provides interleaved dual phase operation at high power levels, single phase operation at lower power levels and burst mode operation at (...)
Reference design
800-W High efficiency bridgeless Power Factor Correction (PFC) reference design
This reference design is a bridgeless PFC circuit using UCC28070 Interleaving CCM PFC controller to provide 390-V /2-A output from universal AC input. The circuit uses Average Current Mode PWM control with advanced internal current synthesizer for current sensing. This design achieves 96.57% peak (...)

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