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iW3602-00

10W Off-Line LED Driver for Dimmable Solid State Lighting


Description

The iW3602-00 is a high performance AC/DC power supply controller optimized for dimmable LED luminaires.  Optimized for use in 100V AC systems, the iW3602-00 provides an efficient, low cost solution for LED luminaires at power levels from 3W to 10W.  Incorporating both iWatt's proprietary PrimAccurate™ primary-side control technology and a simplified version of iWatt's proprietary Flickerless™ technology, the iW3602-00 eliminates LED flicker and minimizes the external component count by removing the need for both the traditional opto-coupler and external compensation components, reducing solution size and cost.  The iW3602-00 also offers tight control of the LED current, full dimming capability and full functionality when no dimmer is present, including automatic detection when there is no dimmer present and full protection for a variety of possible fault conditions. For applications covering an input voltage range of 100VAC to 230VAC, please see the iW3602-01/-03.

 
Typical Applications Diagram
3602-00

Typical Solid State LED Lighting Solution

 
Related Technical Documents

What is digital power and what are its benefits?
By Zahid Rahim
EE Times Power Management DesignLine
September 16, 2010

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By Jerry Zehng, Yong Li, and Zahid Rahim
Power Electronics Technology
March 1, 2011

Features
  • Optimized for 3W to 10W LED Driver Applications in 100VAC Systems
  • Reduced Component Count for Space and Cost Sensitive Applications
  • PrimAccurate™ - Isolated Off-Line AC/DC Controller
  • Integrates iWatt's Flickerless™ Technology to Remove LED Flicker
  • 45Hz to 66Hz Line Frequency Range - 50Hz/60Hz Compatible
  • 2% to 100% Wide Dimming Range
  • Automatically Detects and Operates without Dimmer
  • Quasi-resonant Mode for Optimal Efficiency - 85% (Without Dimmer)
  • Low 10uA Start-Up Current
  • Fully Protected for Temperature, Over Current, Sense Resistor Short Circuits and LED Open and Short Circuits
  • LED Temperature Protection - External NTC Input to Reduce Drive to LEDs in Over Temperature Condition

 
Functional Block Diagram

 
Applications
  • Solid State Lighting Applications up to 10W
  • Dimmable LED Luminairies

 
Resources
 
Patents
6,385,059; 6,730,039; 6,862,198; 6,900,995; 6,956,750; 6,990,000; 7,443,700; 7,505,287; 7,589,983; 6,972,969; 7,724,547; 7,876,582; 7,880,447; 7,974,109; 8,018,743; 8,049,481; 7,936,132; 7,433,211; 6,944,034;
 
Technology