Product details

Topology Boost Control mode CCM Practical operating frequency (Max) (MHz) 0.065 UVLO thresholds on/off (V) 10.5/9.5 Device type Controllers Operating supply current (mA) 7.5 Features < 150W Applications, > 750W Applications, Average Current Mode, Continuous Control Mode , Brown Out, Enable, OVP Rating Catalog Operating temperature range (C) -40 to 125
Topology Boost Control mode CCM Practical operating frequency (Max) (MHz) 0.065 UVLO thresholds on/off (V) 10.5/9.5 Device type Controllers Operating supply current (mA) 7.5 Features < 150W Applications, > 750W Applications, Average Current Mode, Continuous Control Mode , Brown Out, Enable, OVP Rating Catalog Operating temperature range (C) -40 to 125
PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9
  • 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
  • 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

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.

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.

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Technical documentation

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Type Title Date
* Data sheet UCC28019A 8-Pin Continuous Conduction Mode (CCM) PFC Controller datasheet (Rev. D) 24 Oct 2017
Technical article Is PFC possible without input voltage sensing? 14 Sep 2016
Application note The Solution To Optimize The Load Dynamic Performance in UCC28019A LED Lighting (Rev. A) 16 Jan 2014
Application note Optimizing the UCC28019A to Avoid Audible Noise 20 Jun 2013
User guide UCC28019A EVM 350-W PFC Converter User's Guide (Rev. A) 07 May 2009

Design & development

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Evaluation board

UCC28019AEVM — UCC28019AEVM Evaluation Module

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 (...)

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UCC28019A Design Calculator (Rev. E)

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Reference designs

PMP5327 — PFC, Resonant Half-Bridge, Buck (PFC, 42V@6A) for Digital Audio

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

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