Overview

The iW3605 single-stage, 25W LED driver operates without the need for a bleeder circuit while maintaining broad dimmer compatibility, providing a cost-optimized solution with a high power factor (>0.92) and low THD (<20%).

The iW3605 integrates Renesas' patented intelligent dimming control to provide compatibility with a wider range of dimmers, including TRIAC, digital and universal dimmers. This technology uses digital analytics to query the dimmer and applies algorithms that automatically adapt to the dimmer type.

The iW3605 is fully protected, including Renesas' patented configurable over-temperature protection (OTP) derating. This OTP feature protects the entire LED driver circuit from excessive heating while enabling continuous light output even under high ambient temperatures often found in low airflow bulb installations.

iW3605 Functional Block Diagram
iW3605 Typical Applications Diagram
iW3605 Functional Block Diagram
iW3605 Typical Applications Diagram
  • 25W Output Power
  • Single-Stage, Bleederless Design for Low BOM Cost
  • Wide Dimmer Compatibility
    • TRIAC and Digital
    • Automatic Detection of Dimmer Type
  • Configurable Dimming Curves – NEMA SSL 6-compliant
  • High Power Factor (PF) >0.92
  • Low Total Harmonic Distortion (THD) <20%
  • PrimAccurate­™ Digital Control
    • Isolated Off-Line Control without Optical Feedback Isolator
  • Zhaga Hot-plug Compliant
  • Built-in, Configurable Over-Temperature Protection with Automatic Derating of LED Current

Applications

  • 25W Dimmable SSL Retrofit Lamps and External Lighting Ballast Drivers
  • Retrofit SSL Bulbs: A19, PAR, T8

Documentation

= Featured Documentation
Type Title Date
Datasheet
iW3605 Datasheet
Log in to Download PDF 1.56 MB
Product Brief
iW3605 Product Summary
PDF 508 KB
Other
Reference Design EBC20066: iW3605-02C, iW339-00, 90V-135VAC Input, 40V/500mA Output, 3 Output Current Setting LED Driver Design
Log in to Download ZIP 2.36 MB
3 items

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Buy / Sample
    Part Number
    IW3605-02C
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    Samples Available
    		 SOIC-8 Tape & Reel 1 Get Samples,
    iW3605-05C
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    Samples Available
    		 SOIC-8 Tape & Reel 1 Get Samples,
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