Power & Power Management

Overview

The iW350 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. With its extensive configurability, the iW350 offers programmable maximum dimming voltage, minimum duty cycle, turn-off function, and PWM output frequency range, making the device highly flexible for dimmable commercial SSL lighting applications.

The iW350 converts any of the compatible dimming signals into a 1% 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.

iW350 Functional Block Diagram
iW350 Typical Applications Diagram
iW350 Functional Block Diagram
iW350 Typical Applications Diagram
  • Operating range: 15V to 60V
  • Programmable maximum dimming voltage
  • Programmable minimum duty cycle and turn-off
  • Programmable PWM frequency output
  • 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
  • Output drive optimized for optocoupler non-linear delay time
  • 1% PWM duty cycle tolerance
  • Shutdown pin to minimize standby power

Applications

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

Documentation

Type Title Date
Product Brief
iW350 Product Summary
PDF 427 KB
Brochure
Industrial Power Management Brochure
PDF 5.51 MB 日本語
Datasheet
iW350 Datasheet
PDF 1.23 MB
Other
Reference Design EBC20071: iW3671-00, iW380-00, iW350-30, 36V/0.8A, 0-10V Dimmable SSL LED Driver Design
ZIP 6.12 MB
Other
Reference Design EBC20075: iW3671-00, iW380-20, iW350-30, 36V/800mA, 0-10V Dimmable LED Driver Design
ZIP 6.04 MB
Other
Reference Design EBC20069: iW2206-00, iW3637-01, iW350-30, 120V/0.8A, 0-10V Dimmable SSL Driver Design
ZIP 4.84 MB
Other
Reference Design EBC20072: iW3677-00, iW380-00, iW350-30, 54V/1.05A, 0-10V Dimmable SSL Driver Design
ZIP 6.08 MB
Other
Reference Design EBC20076: iW3677-00, iW380-31, iW350-31, 18-54V, Max 55W Constant Power, 0-10V Dimmable SSL Driver Design
ZIP 6.25 MB
Other
Reference Design EBC20077: iW380-00, iW350-00, 54V/1.06A, External SSL Driver Design
ZIP 1.87 MB
Other
Reference Design EBC20059: iW2206-00 and iW3637-05 and iW350-00, 90V-277VAC Input, 48V/2A Output, 0-10V Dimmable SSL LED Driver Design
ZIP 13.71 MB
Other
Reference Design EBC20063: iW3677-00 and iW3638-01 and iW350-00, 40V/1.5A, 0-10V Dimmable SSL LED Driver Design
ZIP 13.91 MB
Other
Reference Design EBC20068: iW2206-00 and iW3637-02 and iW350-30, 90V-300VAC Input, 120V/0.5A Output, 0-10V Dimmable SSL LED Driver Design
ZIP 8.00 MB
Other
Reference Design EBC20064 - iW350-30 3-in-1 0-10V PWM, 0-10V Analog and Resistor Dimming Design
ZIP 1.81 MB
Other
Reference Design EBC20065 - iW350-00 3-in-1 0-10V PWM, 0-10V Analog and Resistor Dimming Design
ZIP 1.84 MB
14 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

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    Part Number
    IW350-00AB
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    iW350-00B
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    iW350-02AB
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    iW350-02B
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    IW350-30AB
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    iW350-30B
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    iW350-32B
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