60V, LINEAR 75mA ADJUSTABLE CURRENT LED DRIVER
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
The AL5811 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 75mA.
Longer LED chains can be driven by tapping VCC from the chain,
where the chain voltage may exceed 60V.
The AL5811 is available in the exposed pad MSOP-8EP and
Low Reference Voltage (VRSET = 0.5V)
-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)
Isolated Offline LED Converters
Linear LED Driver
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
Document number: DS35255 Rev. 2 - 2
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