AL5809EV1-XXX User Guide

AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
General Description
The AL5809 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 AL5809
simplifies the design for linear LED drivers
allowing it to be designed as a high or lowside constant current regulator without any
external components.
Specifications
Parameter
Value
Input Voltage
LED Current Options
XYZ Dimension
ROHS Compliance
2.5V – 60V
15 to 150mA
0.69” x 0.77” x 0.1”
Yes
Top-View EVM (AL5809EV1)
The AL5809 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 AL5809EV1-XXX (from 15 to 150 mA) is
available in thermally robust POWERDI-123
package with different current options,
please see ordering information section.
AL5809EV1 (PDI123)
Bottom-View EVM (AL5809EV1)
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
AL5809EV1-XXX Rev1
February 2015
www.diodes.com
Connection Instructions
Input Voltage: Red Wire (DC+)
Ground: Black Wire (DC-)
IN: White Wire (LED connection)
OUT: Black Wire
Page 1 of 12
AL5809EV1-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.
AL5809EV1-XXX Rev1
February 2015
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Page 2 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Connection Setup and Power-up Procedures
I) Current LED String Procedure to Evaluation Board in Low side current LED configuration
“DC+” Wire
Vcc (Power Supply)
External LED String
IN Wire
1
IN
XX Y W X
U1
AL5809
OUT
2
OUT Wire
“DC-“ Wire
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 DC+ and DC- terminals on the board.
4. Connect the Anode and Cathode terminals of external LED string between DC+ wire and IN
terminal of the board in the Low side LED configuration.
5. Connect the “DC-“ wire to OUT terminal of the board and connect to GND.
6. 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.
7. 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.
AL5809EV1-XXX Rev1
February 2015
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Page 3 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
II) Current LED String Procedure in High side current LED configuration
“DC+” Wire
Vcc (Power Supply)
IN Wire
1
IN
XX Y W X
U1
AL5809
OUT
2
OUT Wire
External LED String
“DC-“ Wire
1.
2.
3.
4.
5.
6.
7.
8.
9.
The evaluation can also be configured as High side current LED configuration.
Ensure that the DC source is switched OFF or disconnected.
Connect the power supply to DC+ and DC- terminals on the board.
Connect the DC+ wire of the board to IN terminal wire on the board.
Connect the Anode and Cathode terminals of external LED string between OUT terminal
and DC- wire of the board in the High side LED configuration.
Connect the DC- wire to the GND of the DC power supply.
Observe MAX 60V differential between IN and OUT terminals when applied Vcc > 60V.
In the high side circuit configuration, extreme high voltage may be present. Please use
caution and try not to touch any components on the board or input leads.
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.
AL5809EV1-XXX Rev1
February 2015
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Page 4 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Bill of Material
#
Name
Quantity
Part number
Manufacturer
Description
1
U1
1
AL5809-xxxP1-7
Diodes Inc
Constant Current Regulator in PDI123
Ordering Information
AL5809 - XXX XX - 7
Package
Current Option
15 : 15mA
20 : 20mA
30 : 30mA
40 : 40mA
50 : 50mA
60 : 60mA (PDI123 only)
90 : 90mA (PDI123 only)
120 : 120mA (PDI123 only)
150 : 150mA (PDI123 only)
Part Number
AL5809-15P1-7
AL5809-20P1-7
AL5809-30P1-7
AL5809-40P1-7
AL5809-50P1-7
AL5809-60P1-7
AL5809-90P1-7
AL5809-120P1-7
AL5809EV1-XXX Rev1
February 2015
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Packing
P1 : PDI123
S1 : SOD-123
7 : Tape & Reel
LED Current Option
15mA
Package
Identification Code
PDI123
C1
20mA
PDI123
C2
30mA
PDI123
C3
40mA
PDI123
C4
50mA
PDI123
C5
60mA
PDI123
C6
90mA
PDI123
C7
120mA
PDI123
C8
Page 5 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
AL5809-150P1-7
AL5809-15S1-7
AL5809-20S1-7
AL5809-30S1-7
AL5809-40S1-7
AL5809-50S1-7
150mA
PDI123
C9
15mA
SOD-123
D1
20mA
SOD-123
D2
30mA
SOD-123
D3
40mA
SOD-123
D4
50mA
SOD-123
D5
Application Information
PWM Dimming
The AL5809 can be used to provide LED current dimming driving the Out pin via the MOSFET
switch to ground. The Out pin current is then effectively switched on and off causing the LED
current to turn on and off
Vcc (Power Supply)
“DC+” wire
Vcc (Power Supply)
“DC+” Wire
PWM ON/OFF
Switch
External LED String
IN Wire
U1
IN Wire
1
IN
C1=0.1uF/100V
XX Y W X
U1
XX Y W X
C1=0.1uF/100V
AL5809
AL5809
OUT
2
OUT
2
OUT Wire
1
IN
OUT Wire
External LED String
PWM_DIM
“DC-“ Wire
“DC-” wire
(a) PWM Dimming by External MOSFET
AL5809EV1-XXX Rev1
February 2015
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(b) PWM Dimming by Power Supply VIN ON/OFF
Page 6 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
1. The evaluation board can be configured as Low side current LED configuration with use
of PWM dimming.
2. Ensure that the DC source is switched OFF or disconnected.
3. Connect the DC line wires of power supply to DC+ wire and DC- wire terminals on the
board.
4. Connect the Anode and Cathode terminals of external LED string between DC+ wire and
IN terminal of the board in the Low side LED configuration.
5. Connect the Anode and Cathode terminals of external LED string between OUT terminal
and DC- wire of the board in the High side LED configuration.
6. Connect the “DC-“ wire of the board to GND.
7. Insert external MOSFET across OUT terminal and GND of the board for PWM dimming
control.
8. 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.
9. 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.
AL5809EV1-XXX Rev1
February 2015
www.diodes.com
Page 7 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Typical Performance Curves - 15mA, 20mA, 30mA, 40mA, and 50mA PDI123
20mA
30mA
40mA
50mA
15mA
60
50
50
LED Current [mA]
LED Current [mA]
15mA
60
40
30
20
10
20mA
30mA
40mA
50mA
40
30
20
10
TA=25⁰C
TA=25⁰C
0
0
0
5
10
15
20
25
0
30
0.5
1
Figure 1. LED Current vs. VInOut
1.5
2
2.5
3
VInOut
[V], TA=25C
VInOut[V]
VInOut [V]
Figure 2. Startup Minimum Operating Voltage
LED Current Accuracy [%]
15mA_25C
15mA_125C
15mA_-40C
10
8
6
4
2
0
-2
-4
-6
-8
-10
0
5
10
15
20
25
30
35
40
45
50
55
60
VInOut [V]
Figure 3. LED Current vs. Ambient Temperature
Figure 4 LED Current Accuracy (%) vs. VInOut across Temp
Figure 5. THSD of 20mA Current Option
Figure 6. THSD of 40mA Current Option
AL5809EV1-XXX Rev1
February 2015
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Page 8 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Typical Performance Curves- 60mA, 90mA, and 150mA PDI123
60mA
90mA
150mA
160
LED Current [mA]
140
120
100
80
60
40
TA=25⁰C
20
0
0
0.5
1
1.5
2
2.5
3
VInOut [V]
Figure 8. Startup Minimum Operating Voltage
Figure 7. LED Current vs. VInOut
VInOut=3.5
Temperature[⁰C]
Figure 9. LED Current vs. Ambient Temperature
Figure 10 LED Current Accuracy (%) vs. VInOut across
Temp
Figure 11. THSD of 20mA Current Option
Figure 12. THSD of 40mA Current Option
AL5809EV1-XXX Rev1
February 2015
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Page 9 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Typical Performance Characteristics
Figure 17. PWM Dimming 150mA vs. Duty Cycle
Power Dissipation [W] vs. Ambient Temperature [⁰C]
for PDI-123,SOD-123 on FR4, and PDI-123 on Getek
Maximum VInOut [V] vs. Ambient Temperature [⁰C] for Current Option on PDI FR4 Board
(refered by Apps board FR4, 2-layer, 0.69"x0.76" size)
1.50
PDI on Getek (max Tj=145)
PDI on FR4 15mA
60
PDI on FR4 20mA
1.25
PDI on FR4 50mA
PDI on FR4 90mA
PDI on FR4 150mA
40
PDI on FR4 (max Tj=145)
0.75
Maximum VInOut [V]
Power Dissipation (W)
50
1.00
0.50
0.25
PDI on FR4 40mA
PDI on FR4 60mA
30
20
10
SOD on FR4 (max Tj=145)
0.00
0
25
50
75
100
125
Ambient Temperature (°C)
0
0
Figure 13. Power Dissipation vs. Ambient Temperature @
TJ = 160⁰C
25
50
75
100
125
Ambient Temperature [°C]
Figure 14. Maximum VInOut vs. Temperature
Maximum VInOut [V] vs. Ambient Temperature [⁰C] for Current Option on PDI
FR4 Board (referred by Apps board FR4, 2-layer, 0.69"x0.76" size)
40
SOD on FR4 15mA
35
Maximum VInOut [V]
SOD on FR4 20mA
30
SOD on FR4 30mA
SOD on FR4 40mA
25
SOD on FR4 50mA
20
15
10
5
0
0
25
50
75
100
125
Ambient Temperature [°C]
Figure 15. Maximum VInOut vs. Temperature
Figure 16 PWM Dimming 90mA vs. Duty Cycle
200Hz
500Hz
1KHz
1.5KHz
150
135
LED Current [mA ]
120
105
90
75
60
45
30
VInOut=3V, 150mA
15
0
0
10
20
30
40
50
60
70
80
90
100
Duty Cycle [%]
AL5809EV1-XXX Rev1
February 2015
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Page 10 of 12
AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
Figure 18. Area Zoom In within Duty Cycle 5% of Figure 17
200Hz
500Hz
1KHz
1.5KHz
9
LED Current [mA]
8
7
6
5
4
3
2
VInOut=3V, 150mA
1
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Duty Cycle [%]
IMPORTANT NOTICE
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AL5809EV1-XXX Rev1
February 2015
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AL5809EV1-XXX User Guide
15-150mA 60V Constant Current Regulator
AL5809EV1-XXX Rev1
February 2015
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