概要

The iW339 is a secondary-side PWM signal generator that works with three types of dimming inputs: PWM dimming, 0V to 10V linear dimming, or simple dimming using a single resistor to ground from the DIM pin. The iW339 converts any of these three signals into a 1% to 100% PWM duty cycle output that provides a dimming signal to a primary-side LED driver such as the iW3636, eliminating the need for transformers or other driver circuitry.

iW339 Functional Block Diagram
iW339 Typical Applications Diagram
iW339 Functional Block Diagram
iW339 Typical Applications Diagram
  • Operating range: 15V to 60V
  • 3-in-1 dimmer interface
    • 0V to 10V analog
    • PWM (10V)
    • Resistor
  • Highly integrated for low BOM cost
    • Integrated current source for driving 0V to 10V dimmers
    • Integrated optocoupler driver for isolated applications
  • 1% PWM duty cycle tolerance
  • Selectable frequency range via external capacitor
  • Shutdown pin to minimize standby power

アプリケーション

  • 0V to 10V analog dimming
  • PWM LED dimming
  • Resistor LED dimming

ドキュメント

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データシート
iW339 Datasheet
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製品概要
iW339 Product Summary
PDF 397 KB
その他資料
Reference Design EBC20047: iW3636-01 and iW339-00, 90V-305V Input Voltage, 40W Output Power, Dimmable External LED Driver Design
ログインしてダウンロード ZIP 4.78 MB
その他資料
Reference Design EBC20048: iW3627-00, iW3638-02 and iW339-00, 90V-305VAC Input, 42V/1.5A Output, 0-10V Dimmable External LED Driver Design
ログインしてダウンロード ZIP 9.05 MB
その他資料
Reference Design EBC20053: iW3637-01 and iW339-00, 220V-305VAC Input, 180V/600mA Output, 0-10V Dimmable Buck SSL Design for External LED Driver
ログインしてダウンロード ZIP 3.87 MB
その他資料
Reference Design EBC20056: iW3627-00, iW3638-01 and iW339-00, 90V-305VAC Input, 42V/1.35A Output, 0-10V and BLE Dimmable External LED Driver Design
ログインしてダウンロード ZIP 11.93 MB
その他資料
Reference Design EBC20066: iW3605-02C, iW339-00, 90V-135VAC Input, 40V/500mA Output, 3 Output Current Setting LED Driver Design
ログインしてダウンロード ZIP 2.36 MB
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