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AL5809

60V Two Terminal Constant Current LED Driver



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AL5809 pdf
AL5809
60V Two Terminal Constant Current LED Driver
Description
The AL5809 is a constant current linear LED driver and provides a
cost-effective two pin solution. It has an excellent temperature
stability of 20 ppm/°C and current accuracy ±5% regulated over a
wide voltage and temperature range. The AL5809 comes in various
fixed output current versions removing the need for external current
setting resistors creating a simple solution for the linear driving of
LEDs. It supports both the high-side and low-side driving of LED
chains.
The AL5809 turns on immediately and can swing from 2.5V up to
60V enabling drive long LED chains. The floating ground, 60V
voltage rating between input and output pins designed to withstand
the high peak voltage incurred in offline applications.
The AL5809 is available in thermally robust package POWERDI-123
or SOD-123 package.
Pin Assignments
AL5809
1
IN
OUT
2
Features
Robust power package up to 1.2W for POWERDI-123
-40°C to +125°C temperature range
±5% LED current tolerance over temperature
(15mA, 20mA, 30mA, 40mA, 50mA, 60mA, 90mA, 120mA, and
150mA) available in POWERDI-123 package
(15mA, 20mA, 30mA, 40mA and 50mA) available in SOD-123
package, and other current options available by request
Constant current with low temperature drift and high power
supply rejection ratio
2.5V to 60V operating voltage between two terminals.
Available in PowerDi-123 and SOD-123 in “Green” Molding
Compound (No Br, Sb) (Note 1) with Lead-Free Finish/RoHS
Compliant (Notes 2 & 3)
Applications
Offline LED Lamps
LED Power Supplies
White Goods
LED Signs
Instrumentation Illumination
Notes:
1. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
2. No purposely added lead. Fully compliant EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2).
3. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
Typical Applications Circuit
VIN
Low Side LED String
VIN
1
IN
AL5809
1
IN
AL5809
OUT
2
OUT
2
High Side LED String
AL5809
Document number: DS36625 Rev. 3 - 2
1 of 13
www.diodes.com
October 2014
© Diodes Incorporated



No Preview Available !

AL5809 pdf
Pin Descriptions
Pin
Name
In
Out
Pin
Number
(PowerDi-123)
1
2
Function
LED current input terminal.
For low side LED string application, connect the LED cathode terminal to the In
terminal. For high side LED string application, connect the LED anode terminal to the
Outterminal.
LED Current Output terminal.
For low side LED string application, connect the LED anode terminal to the “Out”
terminal. For high side LED string application, connect the LED cathode terminal to the
“Out” terminal.
AL5809
Functional Block Diagram
Absolute Maximum Ratings
Symbol
VInOut
IInOut
ESD HBM
ESD MM
TJ
TST
Parameters
InVoltage Relative to OutPin
LED Current from Into Out
Human Body Model ESD Protection
Machine Model ESD Protection
Operating Junction Temperature
Storage Temperature
Ratings
80
180
4
400
-40 to +175
-55 to +150
Unit
V
mA
kV
V
°C
°C
Caution:
Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when
handling and transporting these devices.
AL5809
Document number: DS36625 Rev. 3 - 2
2 of 13
www.diodes.com
October 2014
© Diodes Incorporated



Part Number AL5809
Description 60V Two Terminal Constant Current LED Driver
Maker Diodes - Diodes
Total Page 13 Pages
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