AL5811

Document number: DS35255 Rev. 1 - 2

1 of 13

www.diodes.com

January 2013

© Diodes Incorporated

AL5811

60V, LINEAR 75mA ADJUSTABLE CURRENT LED DRIVER

Description

The AL5811 is a Linear LED driver with an adjustable LED current up

to 75mA offering excellent temperature stability and output handling

capability. The AL5811 simplifies the design of linear and isolated or

non-isolated LED drivers by setting the LED current with standard

value resistors.

The AL5811 has an open drain output that can swing from 1V up to

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 75mA.

where the chain voltage may exceed 60V.

The AL5811 is available in the exposed pad MSOP-8EP and

U-DFN3030-6 packages.

Features

•

•

-40°C to +125°C Temperature Range

•

±6% Typical LED Current Tolerance

•

Low Temperature Drift

•

1.0V to 60V Open-Drain Output

•

High Power Supply Rejection

•

MSOP-8EP and U-DFN3030-6

•

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

•

Halogen and Antimony Free. “Green” Device (Note 3)

Pin Assignments

LED

NC

NC

GND

R

SET

NC

NC

2

3

4

8

7

6

5

(Top View)

MSOP-8EP

U-DFN3030-6

(Top View)

LED

NC

GND

NC

2

1

4

5

6

Exposed

Pad

Applications

•

Isolated Offline LED Converters

•

Linear LED Driver

•

LED Signs

•

Instrumentation Illumination

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen and Antimony free, "Green" and Lead-Free.

3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)

and <1000ppm antimony compounds.

Typical Applications Circuit

AL5811

LED

GND

AL5811

LED

GND