パワーマネジメント

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

設計・開発

ECADモデル

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ECADモデルを調べる
Diagram of ECAD Models

製品選択

    Processing table
    Pkg. Type
    Carrier Type
    ご購入 / サンプル
    型名
    iW339-00
    play_circleアクティブ
    memory
    view_in_ar
    		SOIC-8 Tape & Reel
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