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Diodes Semiconductor Electronic Components Datasheet

AL5809 Datasheet

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



Diodes Semiconductor Electronic Components Datasheet

AL5809 Datasheet

60V Two Terminal Constant Current LED Driver

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



Diodes Semiconductor Electronic Components Datasheet

AL5809 Datasheet

60V Two Terminal Constant Current LED Driver

No Preview Available !

AL5809 pdf
AL5809
Package Thermal Data
Package
θJC
Thermal Resistance
Junction-to-Case
θJA
Thermal Resistance
Junction-to-Ambient
PDIS
TA = +25°C, TJ = +125°C
PowerDi-123
27.15°C/W
148.61°C/W (Note 4)
0.68W
PowerDi-123
17.81°C/W
81.39°C/W (Note 5)
1.24W
SOD-123
69.56°C/W
278.42°C/W (Note 6)
0.36W
Notes:
4. Test condition for PowerDi-123: Device mounted on 25.4mm x 25.4mm FR-4 PCB (10mm x 10mm 1oz copper, minimum recommended pad layout on
top layer and thermal vias to bottom layer ground plane). For better thermal performance, larger copper pad for heatsink is needed.
5. When mounted on 50.8mm x 50.8mm GETEK PCB with 25.4mm x 25.4mm copper pads.
6. Test condition for SOD-123: Device mounted on FR-4 PCB with 50.8mm x 50.8mm 2oz copper, minimum recommended pad layout on top layer and
thermal vias to bottom layer with maximum area ground plane. For better thermal performance, larger copper pad for heatsink is needed.
Recommended Operating Conditions
Symbol
Parameter
Min
Max
Unit
VInOut
InVoltage Range Relative to OutPin
2.5 60 V
IInOut
LED Current (Note 7)
15 150 mA
TA Operating Ambient Temperature Range (Note 8)
-40 +125 °C
Notes: 7. The LED operating current is determined by the AL5809 current option index XXX, AL5809-XXXS/P1-7.
8. The Maximum LED current is also limited by ambient temperature and power dissipation such that junction temperature should be kept less than or equal
to +125°C.
Electrical Characteristics (VInOut = 3.5V) (Note 9)
Symbol
Parameter
VInOut In-Out Supply Voltage
IINOut Current Accuracy
IInOut (±5% for over temperature)
Conditions
TA = -40°C to +125°C
AL5809-15S1-7
AL5809-15P1-7
TA = -40°C to +125°C
AL5809-20S1-7
AL5809-20P1-7
TA = -40°C to +125°C
AL5809-30S1-7
AL5809-30P1-7
AL5809-40S1-7
AL5809-40P1-7
AL5809-50S1-7
AL5809-50P1-7
TA = -40°C to +125°C
TA = -40°C to +125°C
TA = -40°C to +125°C
AL5809-60P1-7
TA = -40°C to +125°C
AL5809-90P1-7
TA = -40°C to +125°C
AL5809P-1201-7
TA = -40°C to +125°C
Min
2.5
14.25
19
28.5
38
47.5
57
85.5
114
Typ
15
20
30
40
50
60
90
120
AL5809-150P1-7
TA = -40°C to +125°C 142.5
150
ILINE IInOut Current Line Regulation VInOut = 2.5V to 60V (Note 10)
TA = +25°C
1
VMIN Minimum Power Up Voltage Increase VInOut (Note 11)
TA = -40°C to +125°C
1
1.5
TSHDN Thermal Shutdown
   145
THYS
Notes:
Thermal Shutdown Hysteresis
  30
9. All voltages unless otherwise stated are measured with respect to OUT pin.
10. Measure the percentage degree of LED current variation when VInOut varies from 2.5V to 60V for each current option.
11. Apply the power linearly to the chip until the device starts to turn on.
Max
60
15.75
21
31.5
42
52.5
63
94.5
126
157.5
2
Unit
V
mA
%/V
V
°C
°C
AL5809
Document number: DS36625 Rev. 3 - 2
3 of 13
www.diodes.com
October 2014
© Diodes Incorporated




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