iW339

iW339

3-in-1 Secondary-Side Signal Interface Controller with Optimized Output Drive

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Supports 0-10V Analog, PWM, Resistor Dimming

The iW339 is a secondary-side PWM signal generator that works with three types of dimming inputs: PWM dimming, 0-10V 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%–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.

Features

  • Operating Range: 15V to 60V
  • 3-in-1 Dimmer Interface
    • 0-10V Analog
    • PWM (10V)
    • Resistor
  • Highly Integrated for Low BOM Cost
    • Integrated Current Source for Driving 0-10V Dimmers
    • Integrated Optocoupler Driver for Isolated Applications

Features

  • 1% PWM Duty Cycle Tolerance
  • Selectable Frequency Range via External Capacitor
  • Shutdown Pin to Minimize Standby Power

Applications

  • 0-10V Analog Dimming
  • PWM LED Dimming
  • Resistor LED Dimming

Block diagrams

iW339 Typical Applications Diagram
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iW339 Functional Block Diagram

Resources

Product Briefs and Summaries

We will provide up to five parts free of charge and our sales team will provide pricing for sample orders exceeding five parts. To initiate your request, please complete the form below.

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