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AL8862 - 60V 1A STEP-DOWN LED DRIVER

General Description

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.

Key Features

  • Wide Input Voltage Range: 5V to 60V.
  • 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 or PWM Signal.
  • 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.
  • SO-8EP and.

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AL8862 60V 1A STEP-DOWN LED DRIVER Description 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. The AL8862 switches at frequencies up to 1MHz. This allows the use of smaller-sized external components, hence minimizing the PCB size. The AL8862 integrates the power switch and a high-side output current-sensing circuit. Maximum output current of the AL8862 is set via an external resistor connected between the VIN and SET input pins.