Features
- 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
iW338 Functional Block Diagram
Description
The iW338 is a generic PWM signal generator IC that converts a 0V to 0.6V analog voltage to an inverted 0% to 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.
Parameters
| Attributes | Value |
|---|---|
| 0-5V Analog/PWM Input | No |
| 0-10V Analog Input | Yes |
| 0-10V PWM Input | No |
| RSET | No |
| Max Voltage - 100% Duty Cycle | 0.6V |
| Turn-off Function | No |
| PWM Output Frequency Range (kHz) | 0.1 - 50 |
Package Options
| Pkg. Type | Lead Count (#) | Pitch (mm) |
|---|---|---|
| SOIC-8 | 8 | 1.27 |
Applications
- PWM analog LED dimming
- Warm dimming
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