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Highly Programmable 3-in-1 Secondary-Side Signal Interface Controller with Optimized Output Drive
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.
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)
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
0-10V Analog Dimming
PWM LED Dimming
Resistor LED Dimming