Datasheet Summary
- Primary-Side-Regulation PWM Controller for LED Illumination
June 2015
FL663 Primary-Side-Regulation PWM Controller for LED Illumination
Features
- Low Standby Power: < 30 mW
- High-Voltage Startup
- Few External ponent Counts
- Constant-Voltage (CV) and Constant-Current (CC)
Control without Secondary-Feedback Circuitry
- Green-Mode: Linearly-Decreasing PWM Frequency with Cycle skipping.
- Fixed PWM Frequency at 50 kHz and 33 kHz with
Proprietary Frequency Hopping to Solve EMI Problems
- Peak-Current-Mode Control in CV Mode
- Cycle-by-Cycle Current Limiting
- VDD Over-Voltage Protection (OVP)
- VDD Under-Voltage Lockout (UVLO)
- Adjustable Brownout Detector
- Gate Output...