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
Product Brief
iW338 Product Summary
PDF 415 KB
Brochure
Power Products Brochure
PDF 8.73 MB
Datasheet
iW338 Datasheet
Log in to Download PDF 639 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
4 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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