Dimmable LED Bulb
Single stage flyback and PFC controller for dimmable LED bulbs
With phase-out policies in place for traditional incandescent bulbs in many countries, energy saving alternatives in particular LED retrofit bulbs, e.g. A-lamps, globes, PAR, GU10, etc. are enjoying great popularity.
Infineon’s dimmable off-line LED drivers enable the design of cost effective, energy efficient and miniaturized driver electronics supporting commonly used leading and trailing-edge dimmers. Innovative primary control techniques combined with accurate PWM generation for phase cut dimming enable solutions with significant reduced component count on a single sided driver PCB for smallest form factor.
Application circuit diagram using ICL8001G
Application circuit diagram using ICLS8082G
Key features for application circuit diagrams using ICL8001G / ICLS8082G
- Single stage, primary control with PFC and dimming function
- High efficiencies of 90% and above feasible
- Significant BOM cost savings - approx. 30% compared to existing solutions
- Additional energy savings supported within a wide phase-cut dimming range
- Superb light quality - intelligent regulation for flicker free operation
- Unmatched power quality - power factor exceeding 98%
- Isolated driver output for optimized thermal management
- Minimized external component count enables smallest form factor and maximum reliability
