AL5809

Document number: DS36625 Rev. 5 - 2

1 of 16

www.diodes.com

December 2016

© Diodes Incorporated

AL5809

60V Two Terminal Constant Current LED Driver

PowerDI

Description

The AL5809 is a constant current linear LED driver and it provides a

cost-effective two pin solution. It has an excellent temperature

stability of 20ppm/°C and the current accuracy ±5% regulated over a

wide voltage and temperature range. The AL5809 comes in various

fixed output current versions removing the need for external current

setting resistors creating a simple solution for the linear driving of

LEDs. It supports both the high-side and low-side driving of LED

chains.

The AL5809 turns on when the voltage between IN and OUT swings

from 2.5V up to 60V enabling it drive long LED chains. The floating

ground, 60V Voltage rating between Input and Output pins designed

to withstand the high peak voltage incurred in offline applications.

The AL5809 is available in either thermally robust package

PowerDI123 or SOD-123 package.

Features



2.5V to 60V Operating Voltage Between Two Terminals



Robust Power Package Up to 1.2W for PowerDI

®

-123



-40°C to +125°C Temperature Range



±5% LED Current Tolerance Over-Temperature



15mA, 20mA, 25mA, 30mA, 40mA, 50mA, 60mA, 90mA,

100mA, 120mA, and 150mA Available in PowerDI123 Package



15mA, 20mA, 25mA, 30mA, 40mA and 50mA available in SOD-

123 Package, Other Current Options Available by Request



Constant Current with Low Temperature Drift and High Power

Supply Rejection Ratio



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



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

Pin Assignments

IN

OUT

1

2

AL5809

Applications



Offline LED Lamps



LED Power Supplies



White Goods



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/quality/lead_free.html 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.

POWERDI is a registered trademark of Diodes Incorporated.