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LED Lighting

Power Integrations offers a broad range of highly integrated high-voltage ICs for use in LED lighting applications where designers require offline power supplies at universal input line cord voltages—85 VAC to 265 VAC.

LED lamps offer extraordinary advantages over other lighting modes:

  • Low energy consumption
  • Long life
  • Low maintenance
  • Resistance to shocks and vibrations
  • Generation of pure colored light
  • Small size

LED lighting has become a desirable alternative to incandescent and fluorescent lighting due to rising energy costs, stricter and more pervasive energy regulations worldwide, and the improvement in the lumens per watt of high-brightness LEDs.

Typical Product Application Application Notes
Design
Ideas		 Design
Example
Reports 		Reference
Design
Reports		 Reference
Design
Kits
Compact LED Driver for Integrated Lamps (14 W, 700 mA) Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
High Efficiency (>90%), High Voltage Constant Current LED Driver Design Ideas are concise two-page documents describing a design for a specific application.      
Low Cost Dimmable LED Ballast Using a Valley Fill
Current Shaping Circuit (9 W, 70 V)		 Design Ideas are concise two-page documents describing a design for a specific application.      
20 W Single Stage Flyback Power Supply With PFC for LED Ballasts Design Ideas are concise two-page documents describing a design for a specific application.      
Single Stage PFC,Constant Current LED Driver (75 W, PF >0.9) Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Halogen Light Bulb Retrofit (3 W - 12 V, 300 mA) Design Ideas are concise two-page documents describing a design for a specific application.   RDR-131 RDK-131
Passive PFC LED Lighting Supply Design Ideas are concise two-page documents describing a design for a specific application.      
Universal, 0.5 W, Buck-Boost LED Driver Design Ideas are concise two-page documents describing a design for a specific application. Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Non-isolated, 1.25 W LED Driver Design Ideas are concise two-page documents describing a design for a specific application.      
Universal, 24 W LED Ballast   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Universal 12 V 1.67 A PF>0.9   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    
Universal 12 V 1.67 A PF>0.9 Phase Dimming   Design Example Reports contain a power supply design specification, schematic, bill of materials, transformer documentation, and pcb layout.    

Product Families Used in These Applications

PI's IC product families provide power over a wide range, giving tremendous flexibility in choosing the proper IC for a particular power supply's requirements, enabling a particular design to be reconfigured for higher or lower power increments without major redesign.

IC Product
Family		 Typical Circuit
Configuration		 Power/Current
Ratings		 Description
LinkSwitch-TN Buck Up to 360 mA
Energy-efficient capacitive drop replacement with minimal external component required
TinySwitch®-III Flyback Up to 28.5 W
Improved design  flexibility. Reduced input capacitance and transformer size due to on-time extension and I2f ratings.
TOPSwitch®-GX Flyback Up to 290 W
Extended power range with UV detection, OV shutdown, externally programmable current limit and remote ON/OFF capability.

Related Design Support Documents

General Design Information
Design Guides
TOPSwitch® Power Supply Design Techniques for EMI and Safety
LinkSwitch®-TN Buck-Boost Design Guide (See Page 11, Figure 6 for LED driver application)

Related Links

Conferences

Magazines and Journals

Market Researchers

Forum

World Government Energy Regulation Programs

Power Integrations Support

  • PI Expert™, our interactive design program, takes a user's power supply specifications and automatically determines the critical components (including transformer specifications) needed to generate a working switched mode power supply. It reduces design time from days to minutes.
  • Designers can also use our “Ask an Engineer” feature or consult our reference library, containing more than 200 online reference designs, applications notes, engineering  prototype reports, design ideas, and other documents.
  • Designers can search PI Facts, our search tool that directs them to relevant product and design information based on their application specifications.
Contact your local Power Integrations Sales Representative or Distributor for assistance.

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