概览

The iW337 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 iW337 converts any of these three signals into a 1% to 100% PWM duty cycle that provides a dimming signal to a primary-side LED driver such as the iW3631, eliminating the need for transformers or other driver circuitry.

iW337 Functional Block Diagram
iW337 Typical Applications Diagram
iW337 Functional Block Diagram
iW337 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% to 100% PWM output
    • 1% PWM duty cycle tolerance
    • Selectable frequency range via external capacitor
  • Shutdown pin to minimize standby power

应用

  • 0V to 10V analog or PWM LED dimming
  • Resistor LED dimming

文档

= 相关文档
类型 文档标题 日期
产品简述
iW337 Product Summary
PDF 427 KB
手册
Power Products Brochure
PDF 8.73 MB
数据手册
iW337 Datasheet
登录后下载 PDF 648 KB
应用文档
Application Note 2101 - 0-10V Analog Dimming
登录后下载 PDF 590 KB
其他
Reference Design EBC20052: iW3637-01 and iW337-30, 300V-400VDC Input, 120V/500mA Output, 0-10V Dimmable High Voltage Buck SSL Design
登录后下载 ZIP 4.11 MB
5 items

设计和开发

ECAD 模块

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.

扩展 ECAD 模块
Diagram of ECAD Models

产品选择

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    购买 / 样片
    器件号
    IW337-00
    circle有效
    memory
    view_in_ar
    		SOIC-8 Tape & Reel 1
    IW337-30
    circle有效
    memory
    view_in_ar
    		SOIC-8 Tape & Reel 1
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