Diodes AL5809Q-15P1-7, AL5809Q-30P1-7, AL5809Q-20P1-7, AL5809Q-25P1-7, AL5809Q-50P1-7 User Manual
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AL5809QEV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Parameter
Value
Input Voltage
2.5V – 60V
LED Current Options
15 to 150mA
XYZ Dimension
0.69” x 0.77” x 0.1”
ROHS Compliance
Yes
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 lowside 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 POWERDI123 package with different current options,
please see ordering information section.
Specifications
Top-View EVM (AL5809QEV1)
AL5809QEV1 (PDI123)
Bottom-View EVM (AL5809QEV1)
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
AL5809QEV1-XXX Rev1 Page 1 of 11
September 2018
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Connection Instructions
IN: Red Wire (LED connection)
OUT: Black Wire
AL5809QEV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Board Layout
(a) Top View
(b) Bottom View
Note: This evaluation board provides design flexibility, multiple application circuits can be
derived in both Low and High Side Current LED configurations. The footprint of U1 is compatible
to both of PDI-123 and SOD-123 packages. In addition, it can be hooked up with use of PWM
dimming.
AL5809QEV1-XXX Rev1 Page 2 of 11
September 2018
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AL5809QEV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Vcc (Power Supply)
External LED String
IN
OUT
XX Y W X
1
2
AL5809Q
IN Wire
OUT Wire
U1
Connection Setup and Power-up Procedures
Current LED String Procedure to Evaluation Board in Low side current LED configuration
1. Depends on the current options, the evaluation board is as low side current LED
configuration.
2. Ensure that the DC source is switched OFF or disconnected.
3. Connect the power supply to Anode terminal of external LED string in the Low side LED
configuration.
4. Connect the Cathode terminals of external LED string to IN terminal of the board and
connect OUT wire to GND.
5. Ensure that the area around the board is clear and safe, and preferably that the board and
LEDs are enclosed in a transparent safety cover.
6. Turn on the main switch. LED string should light up and the LED current should be regulated
according to the current options of the device.
AL5809QEV1-XXX Rev1 Page 3 of 11
September 2018
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AL5809QEV1-XXX User Guide
15-150mA 60V Constant Current Regulator
#
Name
Quantity
Part number
Manufacturer
Description
1
U1 1 AL5809Q-xxxP1-7
Diodes Inc
Constant Current Regulator in PDI123
AL5809 - XXX Q P1 - XX
Packing
Package
7 : 7" Tape & Reel
P1 : PDI123
Current Option
15 : 15mA
20 : 20mA
25 : 25mA
30 : 30mA
40 : 40mA
50 : 50mA
60 : 60mA
90 : 90mA
100 : 100mA
120 : 120mA
150 : 150mA
Q : Automotive
Compliant
Qualification
Part Number
LED Current Option
Package
Identification Code
AL5809Q-15P1-7
15mA
PDI123
C1
AL5809Q-20P1-7
20mA
PDI123
C2
AL5809Q-25P1-7
25mA
PDI123
CA
AL5809Q-30P1-7
30mA
PDI123
C3
AL5809Q-40P1-7
40mA
PDI123
C4
AL5809Q-50P1-7
50mA
PDI123
C5
AL5809Q-60P1-7
60mA
PDI123
C6
AL5809Q-90P1-7
90mA
PDI123
C7
Bill of Material
Ordering Information
AL5809QEV1-XXX Rev1 Page 4 of 11
September 2018
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