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LED Lighting

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. They offer extraordinary advantages over other lighting modes, including:

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

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.

Integrated Non-Isolated Driver

Typical Product ApplicationDesign
Ideas		Design
Example
Reports		Reference
Design
Reports		Reference
Design
Kits
4.2 W (12 V, 350 mA) Universal Input, CV/CC LED Driver - Tapped-inductor Non-isolated Buck Configuration
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.
  
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 DriverDesign 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.   
Halogen Light Bulb Retrofit (3 W - 12 V, 300 mA)pdf download RDR-131RDK-131
Universal, 0.5 W, Buck-Boost LED Driver pdf downloadDER-92  
Non-isolated, 1.25 W LED Driverpdf download   

Integrated Isolated Driver

Typical Product ApplicationDesign
Ideas		Design
Example
Reports		Reference
Design
Reports		Reference
Design
Kits
4.2 W (12 V, 350 mA) Universal Input, CV/CC LED Driver - Flyback ConfigurationDesign 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.  
5.32 W (7.6 V, 700 mA) Universal Input, CV/CC LED DriverDesign 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.  
Universal, 24 W LED Ballast DER-100  

External Driver

Typical Product ApplicationDesign
Ideas		Design
Example
Reports		Reference
Design
Reports		Reference
Design
Kits
20 W Single Stage Flyback Power Supply With PFC for LED BallastsDesign 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.  
Passive PFC LED Lighting Supply pdf download   
Universal 12 V 1.67 A PF>0.9 Phase Dimming  DER-167  

Product Families Used in These Applications

IC Product
Family		Typical Circuit
Configuration		Power/Current
Ratings		Description
LinkSwitch®-IIFlybackUp to 5.5 WTight CV/CC, primary side control, capable of exceeding all energy efficiency specifications.
TinySwitch®-IIIFlybackUp to 28.5 WOn-time extension and tight I2f parameter to reduce size and cost of input capacitor and transformer plus OVP.
LinkSwitch®-TNBuckUp to 360 mA Energy-efficient capacitive drop replacement with minimal external component required
TinySwitch®-IIIFlybackUp to 28.5 W Improved design flexibility. Reduced input capacitance and transformer size due to on-time extension and I2f ratings.
TOPSwitch®-GXFlybackUp 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
Product Datasheets AN-44 LinkSwitch®-II Design Guide
Product Datasheets AN-15TOPSwitch® Power Supply Design Techniques for EMI and Safety
LED Selector Guide  AN-37LinkSwitch®-TN Buck-Boost Design Guide (See Page 11, Figure 6 for LED driver application)

Other Related Links

Magazines and Journals

Market Researchers

Forums

World Government Energy Regulation Programs

Power Integrations Support

Contact your local Power Integrations Sales Representative or Distributor for assistance.