Datasheet4U Logo Datasheet4U.com

AL8843 Datasheet 40v 3a Step-down Led Driver

Manufacturer: Diodes Incorporated

Overview: AL8843 40V 3A STEP-DOWN LED DRIVER.

General Description

The DIODES™ AL8843 is a hysteresis mode DC-DC step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage.

The device can operate from an input supply between 4.5V and 40V and provide an externally adjustable output current up to 3A.

Depending upon supply voltage and external ponents, this converter can provide up to 60W of output power.

Key Features

  • Wide Input Voltage Range: 4.5V to 40V.
  • Output Current up to 3A.
  • Internal 40V NDMOS Switch.
  • Typical 4% Output Current Accuracy.
  • Single Pin for On/Off and Brightness Control by DC Voltage or PWM Signal.
  • Recommended Analog Dimming Range: 10% to 100%.
  • Soft-Start.
  • High Efficiency (Up to 97%).
  • LED Short Protection.
  • Inherent Open-Circuit LED Protection.
  • Over Temperature Protection (OTP).
  • Up to 1MHz Switching Frequency.
  • SO-8EP Package Ava.

More Datasheets from Diodes Incorporated

Part Number Description
AL8843Q AUTOMOTIVE COMPLIANT 40V 3A STEP-DOWN LED DRIVER
AL8841Q AUTOMOTIVE 40V 1A/1.5A STEP-DOWN LED DQRIVER
AL8806Q AUTOMOTIVE GRADE BUCK LED DRIVER
AL8807A BUCK LED DRIVER
AL8807B HIGH EFFICIENCY 36V 1.3A PWM DIMMABLE BUCK LED DRIVER
AL8807BQ AUTOMOTIVE GRADE 30V 1.3A PWM DIMMABLE BUCK LED DRIVER
AL8807Q HIGH EFFICIENCY LOW 30V 1.3A AUTOMOTIVE GRADE BUCK LED DRIVER
AL8808 COST EFFECTIVE LOW EMI 30V 1A BUCK LED DRIVER
AL8811 Boost/Buck/Inverting DC-DC CONVERTER
AL8812 BOOST/BUCK DC-DC CONVERTER

AL8843 Distributor