UCC28180
Features
- 1 8-Pin Solution (No AC Line Sensing Needed)
- Wide Range Programmable Switching Frequency
(18 k Hz to 250 k Hz for MOSFET and IGBT-based PFC Converters)
- Trimmed Current Loop Circuits for Low i THD
- Reduced Current Sense Threshold (Minimizes Power Dissipation in Shunt)
- Average Current-Mode Control
- Soft Over Current and Cycle-by-Cycle Peak Current Limit Protection
- Output Overvoltage Protection With Hysteresis Recovery
- Audible Noise Minimization Circuitry
- Open Loop Detection
- Enhance Dynamic Response During Output Overvoltage and Undervoltage Conditions
- Maximum Duty Cycle of 96% (Typical)
- Burst Mode for No Load Regulation
- VCC UVLO, Low ICC Start-Up (< 75 µA)
2 Applications
- Universal AC Input, CCM Boost PFC Converters in 100-W to Few-k W Range
- Server and Desktop Power Supplies
- White Good Appliances (Air Conditioners,
Refrigerators)
- Industrial Power Supplies (DIN Rail)
- Flat Panel (PDP, LCD, and LED) TVs
3 Description
The UCC28180 is a flexible and...
