LED Commercial Lighting Solution
Application
Description
Complete 25W commercial LED driver solution using LinkSwitch-PH with >0.95 power factor, <15% THD, and 0-10V/PWM dimming for intelligent lighting systems.
Core Advantages
Recommended Bill of Materials (BOM)
| Item | Part Number | Description | Quantity | Datasheet |
|---|---|---|---|---|
| 1 | LNK418LG | Main controller IC | 1 | 📄 Download |
| 2 | Custom | Transformer | 1 | 📄 Download |
Applications
Technical Specifications
Customer Success Stories
Commercial Lighting Manufacturer
LED Lighting | Panel Lights and Downlights
Challenge
Design 25W LED driver with high PF, low THD, and 0-10V dimming for commercial buildings
Solution
Used LNK418LG with LinkSwitch-PH for single-stage high-PF design
Results
Achieved 0.96 PF, 12% THD, smooth 1-100% dimming, 30% cost reduction vs two-stage design
FAE Expert Insights
James Zhang
Senior FAE - Commercial Lighting
8 years
Professional Insights
Key design considerations for LinkSwitch-PH LED drivers: 1) Inductor selection - critical for CRM operation and PF performance, 2) Input capacitor - balance between PF and ripple, 3) Dimming circuit - proper isolation and filtering for noise immunity, 4) Thermal design - adequate heatsinking for high ambient temperatures, 5) EMI compliance - proper filtering for conducted emissions. The single-stage design significantly reduces BOM cost while maintaining excellent power quality.
Key Takeaways
- High efficiency reduces operating costs
- Integrated protection simplifies design
- Compact size enables high power density
Decision Framework
Decision Framework
Steps:
- Evaluate requirements
- Compare solutions
- Consult FAE