UCC2819 BiCMOS Power Factor Preregulator | TI.com

UCC2819 (ACTIVE) BiCMOS Power Factor Preregulator

BiCMOS Power Factor Preregulator - UCC2819
Datasheet
 

Description

The UCC2819/UCC3819 provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond to that of the ac-input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCC3819 offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry and a leading-edge modulation technique to reduce ripple current in the bulk capacitor.

The UCC3819 allows the output voltage to be programmed by bringing out the error amplifier noninverting input.

Available in the 16-pin D, DW, N, and PW packages.

Features

  • Controls Boost Preregulator to Near-Unity Power Factor
  • World Wide Line Operation
  • Over-Voltage Protection
  • Accurate Power Limiting
  • Average Current Mode Control
  • Improved Noise Immunity
  • Improved Feed-Forward Line Regulation
  • Leading Edge Modulation
  • 150-µA Typical Start-Up Current
  • Low-Power BiCMOS Operation
  • 10.8-V to 17-V Operation
  • Programmable Output Voltage (Tracking Boost Topology)

Parametrics

Compare all products in Power factor correction (PFC) controllers Email Download to Excel
Part number Order Device type Control method UVLO thresholds on/off (V) Operating supply (Max) (V) Operating supply current (mA) Operating temperature range (C) Rating Features Package Group Package size: mm2:W x L (PKG)
UCC2819 Order now Single-phase PFC     CCM     10.2/9.7     17     4     -40 to 85     Catalog     Average Current Mode
Enable
OVP    
SOIC | 16     16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)    
UCC2817 Order now Single-phase PFC     CCM     16/10     18     4     -40 to 85     Catalog     < 150W Applications
> 750W Applications
Average Current Mode
Enable
OVP    
PDIP | 16
SOIC | 16
SOIC | 16    
16PDIP: 181 mm2: 9.4 x 19.3 (PDIP | 16)
16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)
16SOIC: 77 mm2: 7.5 x 10.3 (SOIC | 16)    
UCC2818 Order now Single-phase PFC     CCM     10.5/10     18     4     -40 to 85     Catalog     < 150W Applications
> 750W Applications
Average Current Mode
Enable
OVP    
PDIP | 16
SOIC | 16
SOIC | 16
TSSOP | 16    
16PDIP: 181 mm2: 9.4 x 19.3 (PDIP | 16)
16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)
16SOIC: 77 mm2: 7.5 x 10.3 (SOIC | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)