AL8862 Overview
The DIODESTM AL8862 is a step-down DC/DC converter designed to drive LEDs with a constant current. The AL8862 operates with an input supply voltage from 5V to 60V and provides an externallyadjustable output current up to 1A. Series connection of the LEDs provides identical LED currents, resulting in uniform brightness and eliminating the need for ballast resistors.
AL8862 Key Features
- Output Current up to 1A
- Internal 60V NDMOS Switch
- Typical 4% Output Current Accuracy
- Single Pin for On/Off and Brightness Control by DC Voltage
- High-Efficiency (Up to 97%)
- LED Short-Circuit Protection
- Inherent Open-Circuit LED Protection
- Current-Sense Resistor Short-Circuit Protection
- Overtemperature Shutdown
- Up to 1MHz Switching Frequency