UCC28065 Natural Interleaving™ Transition-Mode PFC Controller with High Light-Load Efficiency Supporting High-Frequency Switching up-to 800 kHz
- SLUSDW0B May 2020 – May 2020 UCC28065
  
  PRODUCTION DATA.

DATA SHEET

UCC28065 Natural Interleaving™ Transition-Mode PFC Controller with High Light-Load Efficiency Supporting High-Frequency Switching up-to 800 kHz

1 Features

Input filter and output capacitor ripple-current reduction
- Reduced current ripple for higher system reliability and smaller bulk capacitor
- Reduced EMI filter size
Higher switching frequency support
- Up-to 800-kHz switching frequency, reducing boost inductor size to at least one-half in size
- Improved input-current THD
High light-load efficiency
- User adjustable phase management with input voltage compensation
- Burst mode operation with adjustable burst threshold
- Helps enable compliance to EUP Lot6 tier II, CoC tier II and DOE Level VI standards
Sensorless current-shaping simplifies board layout and improves efficiency
Input line feed-forward for fast line transient response
Inrush-safe current limiting:
- Prevents MOSFET conduction during inrush
- Eliminates CCM operation and reverse recovery events in output rectifier