400V Constant Current LED Driver
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
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.
Pin Assignments (Top View)
PowerDI123 (Type B)
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
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Commercial LED Lighting Fixtures
Signage, Downlights, Decorative and Architectural Lighting
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"
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.
Document number: DS40280 Rev. 2 - 2
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