AL5890

Document number: DS40280 Rev. 2 - 2

1 of 17

www.diodes.com

May 2018

© Diodes Incorporated

AL5890

400V Constant Current LED Driver

Description

The AL5890 is a 400V constant current LED driver and it provides a

cost-effective two pin solution. It has good temperature stability and

the current accuracy of < ±2.0mA (typ.) regulated over a wide voltage

and temperature range. The AL5890 comes in various or pre-fixed

output current options removing the need for external current setting

resistors and creating a simple driver solution for the series of LEDs.

The AL5890 supports both the high-side and low-side driving of LED

chains.

The AL5890 turns on when the voltage between IN and OUT is

greater than 7V. Long LED chain application up to 400V operating

voltage subject to package thermal limitation.

The AL5890 is available in thermally robust PowerDI

®

123 (Type B),

SOT89 and TO252 (Standard) packages.

Features



DC up to 400V Operating Voltage With Long LED Chains

Subject to Package Thermal Constraint



LED Current Tolerance Over Wide Temperature Range

< ±2.0mA (typ.)



Thermal Foldback Protection



10mA, 15mA, 20mA, 30mA, and 40mA pre-fixed Constant

Output Current Options



PowerDI123 (Type B), SOT89 and TO252 (Standard) Thermally

Enhanced Packages



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



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

Pin Assignments (Top View)

Out

In

2

1

PowerDI123 (Type B)

SOT89

1

2

In

Out

3

NC

2

TO252 (Standard)

Applications



Commercial LED Lighting Fixtures



Emergency Lighting



Signage, Downlights, Decorative and Architectural Lighting

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-

free/ 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.

1

2

3

NC

In

Out

PowerDI is a registered trademark of Diodes Incorporated.