65kHz CCM PFC controller with Enhanced Start-up and Transient Response


Product details


Device type Single-phase PFC Control method CCM Operating supply (Max) (V) 21 Operating supply current (mA) 7.5 UVLO thresholds on/off (V) 10.5/9.5 Features < 150W Applications, > 750W Applications, Average Current Mode, Brown Out, Enable, OVP Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Power factor correction (PFC) controllers

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Power factor correction (PFC) controllers


  • 8-Pin Solution Reduces External Components
  • Wide-Range Universal AC Input Voltage
  • Fixed 65-kHz Operating Frequency
  • Maximum Duty Cycle of 98% (typ.)
  • Output Over/Undervoltage Protection
  • Input Brown-Out Protection
  • Cycle-by-Cycle Peak Current Limiting
  • Open Loop Detection
  • Low-Power User-Controlled Standby Mode

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open-in-new Find other Power factor correction (PFC) controllers


The UCC28019A 8-pin active Power Factor Correction (PFC) controller uses the boost topology operating in Continuous Conduction Mode (CCM). The controller is suitable for systems in the 100 W to >2 kW range over a wide-range universal ac line input. Start-up current during undervoltage lockout is less than 200 µA. The user can control low power standby mode by pulling the VSENSE pin below 0.77 V.

Low-distortion wave shaping of the input current using average current mode control is achieved without input line sensing, reducing the external component count. Simple external networks allow for flexible compensation of the current and voltage control loops. The switching frequency is internally fixed and trimmed to better than ±5% accuracy at 25°C. Fast 1.5-A peak gate current drives the external switch.

Numerous system-level protection features include peak current limit, soft over-current, open-loop detection, input brown-out, and output over/undervoltage. Soft-start limits boost current during start-up. A trimmed internal reference provides accurate protection thresholds and a regulation set-point. An internal clamp limits the gate drive voltage to 12.5 V.

open-in-new Find other Power factor correction (PFC) controllers

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet UCC28019A 8-Pin Continuous Conduction Mode (CCM) PFC Controller datasheet (Rev. D) Oct. 24, 2017
Technical articles Is PFC possible without input voltage sensing? Sep. 14, 2016
Application notes The Solution To Optimize The Load Dynamic Performance in UCC28019A LED Lighting (Rev. A) Jan. 16, 2014
Application notes Optimizing the UCC28019A to Avoid Audible Noise Jun. 20, 2013
User guides UCC28019A EVM 350-W PFC Converter User's Guide (Rev. A) May 07, 2009

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The UCC28019A evaluation module (EVM) is a 350 W off-line Power Factor Correction (PFC) boost converter providing a 390 V regulated output at 0.9 A of load current. The PFC converter accommodates an input voltage range of 85 VAC to 265 VAC and uses average current mode (...)

  • 350-W, 390-V output
  • Universal off-line input voltage range
  • Average current mode PWM control
  • Fixed 65-kHz oscillator frequency
  • Cycle-by-cycle peak current limiting
  • VCC under-voltage lockout
  • Voltage regulation open-loop detection
  • Output under-voltage protection
  • Output over-voltage protection
  • AC input brown-out (...)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SLUC117E.ZIP (158 KB)

Reference designs

PFC, Resonant Half-Bridge, Buck (PFC, 42V@6A) for Digital Audio
PMP5327 — The PMP5327 reference design provides a 42V/6A output with power factor correction from a universal AC input voltage range. This design uses the UCC28019A to control the front end PFC boost stage. The output of the PFC is followed by a UCC25600 LLC resonant half-bridge. The total efficieny, from (...)

CAD/CAE symbols

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PDIP (P) 8 View options
SOIC (D) 8 View options

Ordering & quality

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