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UCC28019

ACTIVE

65kHz continuous conduction mode (CCM) PFC controller

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UCC28019A ACTIVE 65kHz CCM PFC controller with Enhanced Start-up and Transient Response This product has improved power efficiency and feature set.

Product details

Topology Boost Control mode CCM Switching frequency (max) (kHz) 65 UVLO thresholds on/off (V) 10.5/9.5 Vin (max) (V) 22 Features < 150 W applications, > 750 W applications, Average current mode, Continuous Control Mode, Overvoltage protection Rating Catalog Operating temperature range (°C) -40 to 125 Duty cycle (max) (%) 99.3
Topology Boost Control mode CCM Switching frequency (max) (kHz) 65 UVLO thresholds on/off (V) 10.5/9.5 Vin (max) (V) 22 Features < 150 W applications, > 750 W applications, Average current mode, Continuous Control Mode, Overvoltage protection Rating Catalog Operating temperature range (°C) -40 to 125 Duty cycle (max) (%) 99.3
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 8-pin Solution Without Sensing Line Voltage Reduces External Components
  • Wide-Range Universal AC Input Voltage
  • Fixed 65-kHz Operating Frequency
  • Maximum Duty Cycle of 97%
  • Output Over/Under-Voltage Protection
  • Input Brown-Out Protection
  • Cycle-by-Cycle Peak Current Limiting
  • Open Loop Detection
  • Low-Power User Controlled Standby Mode
  • APPLICATIONS
    • CCM Boost Power Factor Correction Power Converters in the 100 W to >2 kW Range
    • Server and Desktop Power Supplies
    • Telecom Rectifiers
    • Industrial Electronics
    • Home Electronics

  • 8-pin Solution Without Sensing Line Voltage Reduces External Components
  • Wide-Range Universal AC Input Voltage
  • Fixed 65-kHz Operating Frequency
  • Maximum Duty Cycle of 97%
  • Output Over/Under-Voltage Protection
  • Input Brown-Out Protection
  • Cycle-by-Cycle Peak Current Limiting
  • Open Loop Detection
  • Low-Power User Controlled Standby Mode
  • APPLICATIONS
    • CCM Boost Power Factor Correction Power Converters in the 100 W to >2 kW Range
    • Server and Desktop Power Supplies
    • Telecom Rectifiers
    • Industrial Electronics
    • Home Electronics

The UCC28019 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. Startup current during under-voltage 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 Bill of Materials 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 gate peak current drives the external switch.

Numerous system-level protection features include peak current limit, soft over-current detection, open-loop detection, input brown-out detection, output over-voltage protection/under-voltage detection, a no-power discharge path on VCOMP, and overload protection on ICOMP. Soft-Start limits boost current during start-up. A trimmed internal reference provides accurate protection thresholds and regulation set-point. An internal clamp limits the gate drive voltage to 12.5 V.

The UCC28019 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. Startup current during under-voltage 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 Bill of Materials 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 gate peak current drives the external switch.

Numerous system-level protection features include peak current limit, soft over-current detection, open-loop detection, input brown-out detection, output over-voltage protection/under-voltage detection, a no-power discharge path on VCOMP, and overload protection on ICOMP. Soft-Start limits boost current during start-up. A trimmed internal reference provides accurate protection thresholds and regulation set-point. An internal clamp limits the gate drive voltage to 12.5 V.

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UCC28180 ACTIVE 18-kHz-250-kHz CCM PFC controller with enhanced startup & transient response This product is a 8-pin continuous conduction mode (CCM) PFC controller, and has programmable frequency capability.

Technical documentation

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Type Title Date
* Data sheet 8-Pin Continuous Conduction Mode (CCM) PFC Controller datasheet (Rev. B) 11 Dec 2007
Application note Optimizing the UCC28019A to Avoid Audible Noise 20 Jun 2013
User guide UCC28019 350W Evaluation Module 01 Mar 2007

Design & development

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

Simulation model

UCC28019 PSpice Average Model

SLUM056.ZIP (112 KB) - PSpice Model
Simulation model

UCC28019 PSpice Transient Model

SLUM062.ZIP (44 KB) - PSpice Model
Simulation model

UCC28019 TINA-TI Transient Reference Design

SLUM526.TSC (471 KB) - TINA-TI Reference Design
Simulation model

UCC28019 TINA-TI Transient Spice Model

SLUM525.ZIP (11 KB) - TINA-TI Spice Model
Calculation tool

UCC28019-DESIGN-CALC UCC28019 Design Calculator

Supported products & hardware

Supported products & hardware

Products
Power factor correction (PFC) controllers
UCC28019 65kHz continuous conduction mode (CCM) PFC controller
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SOIC (D) 8 View options

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