Overview

The iW330 is a secondary-side PWM signal generator that works with three types of dimming inputs: 0V to 5V and 0V to 10V PWM dimming, 0V to 5V and 0V to 10V linear dimming, or simple dimming using a single resistor to ground from the DIM pin. The iW330 converts any of these three signals into a 5% 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.

iW330 Functional Block Diagram
iW330 Typical Applications Diagram
iW330 Functional Block Diagram
iW330 Typical Applications Diagram
  • Operating range: 15V to 60V
  • 3-in-1 dimmer interface
    • 0-5V/0-10V analog
    • 0-5V/0-10V PWM
    • Single resistor
  • Highly integrated for low BOM cost
    • Integrated current source for driving 0V to 5V or 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

Applications

  • 0V to 5V analog and PWM LED dimming
  • 0V to 10V analog and PWM dimming
  • Resistor LED dimming

Documentation

= Featured Documentation
Type Title Date
Datasheet
iW330 Datasheet
Log in to Download PDF 861 KB
Product Brief
iW330 Product Summary
PDF 463 KB
2 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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Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
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    Part Number
    IW330-00
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    		SOIC-8 Tape & Reel 1
    iW330-02
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    		SOIC-8 Tape & Reel 1
    IW330-30
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    IW330-32
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