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iW350

Highly Programmable 3-in-1 Secondary-Side Signal Interface Controller with Optimized Output Drive

iw350_typical_applications_diagram_-_web.jpg

Supports 0-10V Analog, PWM, Resistor Dimming

The iW350 is a secondary-side PWM signal generator that works with three types of dimming inputs: PWM dimming, 0-10V 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%–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.

Features

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

  • 0-10V Analog
  • PWM (10V)
  • Resistor

Highly Integrated for Low BOM Cost

  • Integrated Current Source for Driving 0-10V 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

0-10V Analog Dimming

PWM LED Dimming

Resistor LED Dimming

Block Diagrams

iw350_typical_applications_diagram_-_web.jpg

Typical applications diagram

iw350_functional_block_diagram_-_web.jpg

Functional block diagram

To order a sample of any of our products, please complete the following form. We will provide up to five parts free of charge. Our sales department will provide pricing for samples orders exceeding five parts.

Sample Request Form

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Product Briefs and Summaries
Name Date Version
iW350 Product Summary (396.01 KB) 25/02/2021 0.5
Datasheets
Name Date Version
iW350 Datasheet (964.83 KB) (Registered users only) 25/01/2021 0.5
Reference designs
Name Date Version
Reference Design EBC20059: iW2206-00 and iW3637-05 and iW350-00, 90V-277VAC Input, 48V/2A Output, 0-10V Dimmable SSL LED Driver Design (13.71 MB) (Registered users only) 06/10/2020 1.0
Reference Design EBC20063: iW3677-00 and iW3638-01 and iW350-00, 40V/1.5A, 0-10V Dimmable SSL LED Driver Design (13.91 MB) (Registered users only) 06/10/2020 1.0
Reference Design EBC20064 - iW350-30 3-in-1 0-10V PWM, 0-10V Analog and Resistor Dimming Design (1.81 MB) (Registered users only) 22/04/2019 1.0
Reference Design EBC20065 - iW350-00 3-in-1 0-10V PWM, 0-10V Analog and Resistor Dimming Design (1.84 MB) (Registered users only) 22/04/2019 1.0
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 (8 MB) (Registered users only) 06/10/2020 1.0
Reference Design EBC20071: iW3671-00, iW380-00, iW350-30, 36V/0.8A, 0-10V Dimmable SSL LED Driver Design (6.12 MB) (Registered users only)
Reference Design EBC20072: iW3677-00, iW380-00, iW350-30, 54V/1.05A, 0-10V Dimmable SSL LED Driver Design (10.54 MB) (Registered users only)
Reference Design EBC20075: iW3671-00, iW380-20, iW350-30, 36V/800mA, 0-10V Dimmable LED Driver Design (6.04 MB) (Registered users only)
Reference Design EBC20076: iW3677-00, iW380-00, iW350-30, 18-54V, Max 55W CP, 0-10V Dimmable SSL LED Driver Design (10.66 MB) (Registered users only)