AL5809QEV1-XXX User Guide
15-150mA 60V Constant Current Regulator
AL5809QEV1-XXX Rev1 Page 1 of 11
September 2018
www.diodes.com
General Description
The AL5809Q is a two terminal constant
current linear LED driver and it provides a
cost-effective solution. It offers an
excellent temperature stability 20 ppm/⁰C
and the current accuracy ±5% regulated
over a wide voltage range. The AL5809Q
simplifies the design for linear LED drivers
allowing it to be designed as a high or low-
side constant current regulator without any
external components.
The AL5809Q turns on immediately and can
swing 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 DC and offline
applications.
The AL5809QEV1-XXX (from 15 to 150 mA)
is available in thermally robust POWERDI-
123 package with different current options,
please see ordering information section.
Key Features
Low Minimum Operating Voltage (2.5V
to 60V)
-40˚C to 125˚C Temperature Range
±5% LED Current Accuracy
PDI-123 package
Applications
Constant LED Current Driver
Isolated Offline LED Converters
LED Signs
Instrumentation Illumination
Specifications
Top-View EVM (AL5809QEV1)
AL5809QEV1 (PDI123)
Bottom-View EVM (AL5809QEV1)
Connection Instructions
IN: Red Wire (LED connection)
OUT: Black Wire
