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.


  • 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




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


Type Title Date
Product Brief PDF 427 KB
Brochure PDF 5.51 MB 日本語
Datasheet PDF 1.23 MB
Other ZIP 6.12 MB
Other ZIP 6.04 MB
Other ZIP 4.84 MB
Other ZIP 6.08 MB
Other ZIP 6.25 MB
Other ZIP 1.87 MB
Other ZIP 13.71 MB
Other ZIP 13.91 MB
Other ZIP 8.00 MB
Other ZIP 1.81 MB
Other ZIP 1.84 MB
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Design & Development