LED Driver Secondary-Side PWM Signal Generator
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Supports 0-0.6V Analog Dimming
The iW338 is a generic PWM signal generator IC that converts a 0-0.6V analog voltage to an inverted 0%–100% PWM duty cycle. The PWM frequency range is set by an external capacitor and can be programmed from 100Hz to 50kHz. The output of the iW338 is a 5V PWM driver capable of driving an external optocoupler or MOSFET.
Input Voltage:8V to 60V
1% PWM Duty Cycle Tolerance
Programmable PWM Frequency Range:100Hz to 50kHz
Integrated 5V LDO
For Inputs up to 60V
Reduces BOM Count
PWM Analog LED Dimming
iW338 Typical Applications Diagram
iW338 Functional Block Diagram
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