8-Pin Continuous Conduction Mode (CCM) PFC Controller - UCC28019A

UCC28019A (ACTIVE)

8-Pin Continuous Conduction Mode (CCM) PFC Controller

 

Description

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.

Features

  • 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

View more

Parametrics Compare all products in Power Factor Correction

 
Device Type
Control Method
UVLO Thresholds On/Off (V)
Operating Supply (Max) (V)
Operating Supply Current (mA)
Pin/Package
Operating Temperature Range (C)
Rating
Special Features
UCC28019A UCC28180
Single-phase PFC    Single-phase PFC   
CCM    CCM   
10.5/9.5    11.4/9.7   
21    21   
7.5    7   
8SOIC
8PDIP   
8SOIC   
-40 to 125     
Catalog    Catalog   
< 150W Applications
> 750W Applications
Average Current Mode
Enable
OVP