Overview
Description
The iW339 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 iW339 converts any of these three 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.
Features
- 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% PWM duty cycle tolerance
- Selectable frequency range via external capacitor
- Shutdown pin to minimize standby power
Comparison
Applications
- 0V to 10V analog dimming
- PWM LED dimming
- Resistor LED dimming
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 686 KB | |
| Product Brief | PDF 397 KB | |
| Other | ZIP 4.78 MB | |
| Other | ZIP 9.05 MB | |
| Other | ZIP 3.87 MB | |
| Other | ZIP 11.93 MB | |
| Other | ZIP 2.36 MB | |
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Design & Development
Models
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.
Processing table
| SOIC-8 | Tape & Reel | 1 | 0.3612 |
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