AL8863 Overview
The AL8863 is a step-down DC/DC controller designed to drive LEDs with high output current. The device operates at an input supply voltage from 4.5V to 60V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.
AL8863 Key Features
- Wide Input Voltage Range: 4.5V to 60V
- Operating Frequency Range: 50kHz to 1MHz
- 1000:1 PWM Dimming Resolution at 100Hz
- Single Pin for On/Off and Brightness Control by PWM Signal
- Fault Status Indication for Abnormal Operation
- LED Shorted Protection
- Inherent Open-Circuit LED Protection
- Programmable Thermal Fold-Back Operation Through NTC Pin
- Over Temperature Shutdown
- Thermally Enhanced SO-8EP Package