UCC28019A

ACTIVE

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

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UCC28180 ACTIVE 18-kHz-250-kHz CCM PFC controller with enhanced startup & transient response enhanced startup and transient response, programmable switching frequency, lower ITHD, lower power consumption, lower audible noise, better protections

Product details

Vin (max) (V) 21 Operating temperature range (°C) -40 to 125 Control mode CCM Topology Boost, PFC controller Rating Catalog Features < 150 W applications, < 150W Applications, > 750 W applications, > 750W Applications, Average current mode, Brown Out, Continuous Control Mode, Enable, OVP, Overvoltage protection, Single-phase Duty cycle (max) (%) 99.3
Vin (max) (V) 21 Operating temperature range (°C) -40 to 125 Control mode CCM Topology Boost, PFC controller Rating Catalog Features < 150 W applications, < 150W Applications, > 750 W applications, > 750W Applications, Average current mode, Brown Out, Continuous Control Mode, Enable, OVP, Overvoltage protection, Single-phase Duty cycle (max) (%) 99.3
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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) PDF | HTML 24 Oct 2017
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Product overview PFC Controller Step-by-Step Selection Guide PDF | HTML 28 Feb 2023
Technical article Is PFC possible without input voltage sensing? PDF | HTML 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 (...)

User guide: PDF
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Supported products & hardware

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Products
AC/DC & DC/DC controllers (external FET)
UCC28019A 65kHz CCM PFC controller with Enhanced Start-up and Transient Response
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UCC28019AEVM UCC28019AEVM Evaluation Module
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SOIC (D) 8 Ultra Librarian

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