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AL5812EV3

150mA, 60V Low-side Adjustable Linear LED Driver

Diodes Incorporated. 

AL5812EV3 User Guide

150mA, 60V Low-side Adjustable Linear LED Driver

General Description

The AL5812 is an adjustable Linear LED

driver offering excellent temperature

stability and output handling capability.

The AL5812 simplifies the design of linear

and isolated or non-isolated LED drivers by

setting the LED current with standard value

resistors.

The AL5812 has an open drain output that

can swing from 1V up to 60V enabling it

drive long LED chains. Its low 0.5V RSET pin

is outside of the LED current path and so

accuracy is maintained while minimizing

the required overhead to regulate the LED

current. This reduces its power dissipation

when compared to traditional linear LED

drivers. This makes it ideal for driving LEDs

up to 150mA. Longer LED chains can be

driven by tapping VCC from the chain,

where the chain voltage may exceed 60V.

The AL5812EV3 evaluation board provides

U-DFN3030-6 package.

Key Features

 Low Reference Voltage (VRSET=0.5V)

 -40˚C to 125˚C Temperature Range

 ±3% LED Current Tolerance

 MSOP-8EP and U-DFN3030-6 packages

Applications

 Linear LED Driver

 Isolated Offline LED Converters

 LED Signs

 Instrumentation Illumination

Specifications

Parameter

Input Voltage

LED Current

XY Dimension

ROHS Compliance

Value

3.5V – 60V (Low Side)

>60V (Floating GND)

150mA (Adjustable)

0.62” x 0.57”

Yes

Top-View EVM (AL5812EV3)

AL5812EV3 (U-DFN3030-6)

Connection Instructions

Input Voltage: Red Wire

Ground: Black Wires

LED: White Wire

AL5812EV3 Rev2

January 2013

www.diodes.com

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