UC2852
UC2852 is High Power-Factor Preregulator manufactured by UNITRODE.
High Power-Factor Preregulator
UC1852 UC2852 UC3852
Features
- Low-Cost Power Factor
Correction
- Power Factor Greater Than 0.99
- Few External Parts Required
- Controlled On-Time Boost PWM
- Zero-Current Switching
- Limited Peak Current
- Min and Max Frequency Limits
- Starting Current Less Than 1mA
- High-Current FET Drive Output
- Under-Voltage Lockout
DESCRIPTION
The UC1852 provides a low-cost solution to active power-factor correction (PFC) for systems that would otherwise draw high peak current pulses from AC power lines. This circuit implements zero-current switched boost conversion, producing sinusoidal input currents with a minimum of external ponents, while keeping peak...
