Power Integrations

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 coloured 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
Halogen Light Bulb Retrofit (3 W - 12 V, 300 mA) Design Ideas are concise two-page documents describing a design for a specific application.   Reference Design Reports contain a power supply reference design specification, schematic, bill of materials, transformer documentation, and pcb layout. Performance data and typical operating characteristics are included. The design has been put into production for use in our Reference Design Kits. 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 Ideas are concise two-page documents describing a design for a specific application.    
Non-isolated, 1.25 W LED Driver Design Ideas are concise two-page documents describing a design for a specific application.      
Single-stage, PFC LED Ballast Design Ideas are concise two-page documents describing a design for a specific application.      
Universal, 24 W LED Ballast   Design Ideas are concise two-page documents describing a design for a specific application.    

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-II Flyback Up to 5.5 W
Tight CV/CC, primary side control, capable of exceeding all energy efficiency specifications.
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)
 
14W PFC Isolated LED Driver circuit
using TOP246F
  DI-184 5.32 W (7.6 V, 700 mA) universal input, constant voltage/constant current (CV/CC) power supply for LED driver applications
  DI-186 4.2 W (12 V, 350 mA) universal input, constant voltage/constant current (CV/CC) power supply for LED driver applications - tapped-inductor non-isolated buck configuration

 
 
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