Overview

The iW338 is a generic PWM signal generator IC that converts a 0V to 0.6V analog voltage to an inverted 0% to 100% PWM duty cycle. The PWM frequency range is set by an external capacitor and can be programmed from 100Hz to 50kHz. The output of the iW338 is a 5V PWM driver capable of driving an external optocoupler or MOSFET.

iW338 Functional Block Diagram
iW338 Typical Applications Diagram
iW338 Functional Block Diagram
iW338 Typical Applications Diagram
  • Input voltage: 8V to 60V
  • 1% PWM duty cycle tolerance
  • Programmable PWM frequency range: 100Hz to 50kHz
  • Integrated 5V LDO
  • For inputs up to 60V
  • Reduces BOM count

Applications

  • PWM analog LED dimming
  • Warm dimming

Documentation

= Featured Documentation
Type Title Date
Datasheet
iW338 Datasheet
Log in to Download PDF 639 KB
Product Brief
iW338 Product Summary
PDF 415 KB
Other
Reference Design EBC20040: iW3689-11 and iW338-10, 230VAC Input, 54V/150mA Output for Dimmable LED Driver Design with Thermal Color Dimming
Log in to Download ZIP 1.87 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
    IW338-10
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    		SOIC-8 Tape & Reel 1
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