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AL8863 - 60V BUCK LED CONTROLLER

Datasheet Summary

Description

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.

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.
  • Totally Lead-Free & Fully RoHS Co.

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Datasheet preview – AL8863

Datasheet Details

Part number AL8863
Manufacturer DIODES
File Size 461.57 KB
Description 60V BUCK LED CONTROLLER
Datasheet download datasheet AL8863 Datasheet
Additional preview pages of the AL8863 datasheet.

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Full PDF Text Transcription

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NEW PRODUCT AL8863 60V BUCK LED CONTROLLER WITH FAULT FLAG Description 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. The switching frequency range of AL8863 is from 50kHz to 1MHz. The wide operating frequency range allows more flexibility on component selection, and also with operating up to 1MHz, it allows the use of smaller size external components, hence minimizing the PCB size and driver board. The output current of AL8863 is set via an external resistor connected between the VIN and CSN input pins.
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