A8181 Description
The A8181 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 6V and 36V and provides an externally output current up to 1.2A. Depending upon supply voltage and external ponents, this can provides up to 24 watts of output power.
A8181 Key Features
- Simple low parts count
- Internal 36V NDMOS switch
- Up to 1.2A output current
- Single pin on/off and brightness control using
- Soft Start
- High efficiency (up to 97%)
- Wide input voltage range: 6V to 36V
- Output shutdown
- Up to 1MHz switching frequency
- Inherent open-circuit LED protection