AL5809Q

AL5809Q
AUTOMOTIVE COMPLIANT 60V Two Terminal Constant Current LED Driver
PowerDI
INFORMATON
ADVANCED
NEW PRODUCT
Description
Pin Assignments
The AL5809Q is a constant current linear LED driver that provides a
cost-effective two-pin solution to LED driving. It has an excellent
temperature stability of 20ppm/°C with tight ±5% current accuracy
over a wide voltage and temperature range. The AL5809Q 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 AL5809Q turns on immediately and operates with a voltage
across its terminals varying from 2.5V up to 60V, enabling it to drive
long LED chains. The maximum 60V voltage rating between input
and output pins enables it to withstand high peak transient voltages
that can occur in automotive applications.
®
The AL5809Q is available in the thermally robust PowerDI 123 (Type
B) package. The AL5809Q has been qualified to AEC-Q100 Grade 3
and is Automotive Compliant supporting PPAPs.
Features
Applications

Robust Power Dissipation Up to 1.5W for PowerDI123 (Type B)

Automotive Interior Lamps

-40°C to +150°C Junction Temperature Range

Automotive Parking Lights

±5% LED Current Tolerance Overtemperature and VINOUT

Instrumentation Illumination

Large Number of Output Current Options:

15mA, 20mA, 25mA, 30mA, 40mA, 50mA, 60mA,
90mA, 100mA, 120mA, and 150mA Available in
PowerDI123 (Type B) Package

2.5V to 60V Operating Voltage Between Two Terminals

Automotive Compliant

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

Qualified to AEC-Q100 Grade 3 and TS16949 Certification

PPAP Capable (Note 4)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. Automotive products are AEC-Q100 qualified and are PPAP capable. Refer to http://www.diodes.com/quality/product_compliance_definitions/.
Typical Applications Circuit
PowerDI is a registered trademark of Diodes Incorporated.
AL5809Q
Document number: DS38233 Rev. 1 - 2
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AL5809Q
Pin Descriptions
INFORMATON
ADVANCED
NEW PRODUCT
Pin
Name
Pin Number
(PowerDI123 (Type B))
Function
In
1
LED Current Input Terminal
Current flows IN to this pin.
For low-side LED string application, connect the LED cathode terminal to the “In” terminal. For highside LED string application, connect the LED anode terminal to the “Out” terminal.
Out
2
LED Current Output Terminal
Current flows OUT of this pin.
For low-side LED string application, connect the LED anode terminal to the “Out” terminal. For highside LED string application, connect the LED cathode terminal to the “Out” terminal.
Functional Block Diagram
Absolute Maximum Ratings
Symbol
Parameters
Ratings
Unit
VINOUT
“In” Voltage Relative to “Out” Pin
80
V
IINOUT
LED Current from “In” to “Out”
180
mA
4
400
kV
V
TJ
Human Body Model ESD Protection
Machine Model ESD Protection
Operating Junction Temperature
-40 to +175
°C
TST
Storage Temperature
-55 to +150
°C
ESD HBM
ESD MM
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.
AL5809Q
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AL5809Q
Package Thermal Data
INFORMATON
ADVANCED
NEW PRODUCT
Package
θJC
Thermal Resistance
Junction-to-Case
θJA
Thermal Resistance
Junction-to-Ambient
PDIS
TA = +25°C, TJ = +150°C
27.15°C/W
17.81°C/W
148.6°C/W (Note 5)
0.84W
81.4°C/W (Note 6)
1.53W
PowerDI123 (Type B)
PowerDI123 (Type B)
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
VINOUT
Parameter
“In” Voltage Range Relative to “Out” Pin
IINOUT
LED Current (Note 7)
15
150
Unit
V
mA
TJ
Operating Junction Temperature Range (Note 8)
-40
+150
°C
TA
Operating Ambient Temperature Range (Note 8)
-40
+85
°C
Electrical Characteristics
Symbol
Min
2.5
(VINOUT = 3.5V) (@TA = +25°C, unless otherwise specified.) (Note 9)
Parameter
In-Out Supply Voltage
VINOUT
IINOUT Current Accuracy
(±5% for Overtemperature)
IINOUT
Max
60
Min
Typ
Max
Unit
—
Conditions
TJ = -40°C to +150°C
2.5

60
V
AL5809-15QP1-7
TJ = -40°C to +150°C
14.25
15
15.75
AL5809-20QP1-7
TJ = -40°C to +150°C
19
20
21
AL5809-25QP1-7
TJ = -40°C to +150°C
23.75
25
26.25
AL5809-30QP1-7
TJ = -40°C to +150°C
28.5
30
31.5
AL5809-40QP1-7
TJ = -40°C to +150°C
38
40
42
AL5809-50QP1-7
TJ = -40°C to +150°C
47.5
50
52.5
AL5809-60QP1-7
TJ = -40°C to +150°C
57
60
63
AL5809-90QP1-7
TJ = -40°C to +150°C
85.5
90
94.5
AL5809-100QP1-7
TJ = -40°C to +150°C
95
100
105
AL5809-120QP1-7
TJ = -40°C to +150°C
114
120
126
AL5809-150QP1-7
TJ = -40°C to +150°C
142.5
150
157.5
TA = +25°C

1

%/V
TJ = -40°C to +150°C
1
1.5
2
V
mA
ILINE
VINOUT = 2.5V to 60V
IINOUT Current Line Regulation
(Note 10)
VMIN
Minimum Power Up Voltage
TSHDN
Thermal Shutdown Junction
Temperature



+165

°C
THYS
Thermal Shutdown Hysteresis



+30

°C
Notes:
Increase VINOUT (Note 11)
5. Test condition for PowerDI123 (Type B): 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.
6. When mounted on 50.8mm x 50.8mm GETEK PCB with 25.4mm x 25.4mm copper pads.
7. The LED operating current is determined by the AL5809Q current option index XXX, AL5809Q-XXXP1-7.
8. The Maximum ambient temperature range is limited by device power dissipation; such that its junction temperature should be kept less than or equal to
+150°C. See Page 5 for more information on power dissipation. Devices have been qualified to AEC-Q100 Grade 3.
9. All voltages unless otherwise stated are measured with respect to the Out Pin.
10. Measured percentage change 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.
AL5809Q
Document number: DS38233 Rev. 1 - 2
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AL5809Q
Application Information
INFORMATON
ADVANCED
NEW PRODUCT
Description
The AL5809Q is a constant current linear LED driver that can be connected on the high side or low side of the LEDs as a Constant Current
Regulator (CCR). The AL5809Q is available in various output current options from 15mA up to 150mA.
The AL5809Q contains a Low Dropout regulator which provides power to the internal current regulation control block. A fixed preset LED current
setting resistor sets the reference current of the current regulation block. The LED current setting resistor varies with each variant of the AL5809.
An accurate current mirror within the current regulation control block then increases the reference current to the preset LED current of the
AL5809Q.
Simple LED String
The number of LEDs that the AL5809Q can drive depends on the forward voltage drop of the LEDs and the input supply voltage (minus the
minimum operating voltage of the AL5809Q). The designer needs to calculate the maximum voltage between In and Out by taking into account
the maximum input voltage less the voltage across the LED string (Figures 1 & 2).
Figure 1 Low-Side LED String Drive
Figure 2 High-Side LED String Drive
The AL5809Q can also be used on the high-side of the LEDs (See Figure 2). The minimum system input voltage can be calculated by:
VIN(MIN) = VLED_CHAIN + 2.5V Where VLED_CHAIN is the LED chain voltage and 2.5V is the minimum VIO(OUT) voltage of the AL5809Q.
The LED current can be increased by connecting two or more AL5809Q in parallel shown in Figure 3.
(a)
(b)
Low-Side Configuration
High-Side Configuration
Figure 3 Higher LED Current by Parallel Configuration of AL5809Q
AL5809Q
Document number: DS38233 Rev. 1 - 2
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AL5809Q
Application Information (Continued)
INFORMATON
ADVANCED
NEW PRODUCT
Power Dissipation
The maximum ambient temperature range of the AL5809Q is determined by its power dissipation and thermal impedance of the PCB onto which
it is mounted. Its junction temperature must be kept equal to or less than +150°C.
The power dissipated is determined by the LED current version that has been selected (15, 20, 25 30, 40, 50, 60, 90, 100, 120 or 150mA) and
the difference between the input voltage and LED chain voltage.
VINOUT * ILED
In automotive applications the typical input voltage will be around 13V but can vary between 9V (without stop-start operation) and approximately
16V.
The recommended minimum VINOUT voltage of 2.5V enables the AL5809Q to drive 2 LED in series from the 9V battery voltage (assuming
VLED <3.25V).
The AL5809Q’s power dissipation under these conditions will be:
VINOUT * ILED = 2.5 * ILED
So for the 20mA AL5809-20QPI under these conditions this equals:
2.5V * 20mA = 50mW
Under maximum input conditions (16V) the AL5809Q’s power dissipation will be:
VINOUT * ILED = 9.5 * ILED
So for the 20mA AL5809-20QPI this equals:
9.5V * 20mA = 190mW
So there is a large difference in power dissipation of the Linear LED driver between minimum and maximum battery voltages. And care must be
taken to calculate expected power dissipations and then determining the suitable PCB material and layout. See Figures 4 and 5 for graphs
showing power dissipation and maximum VINOUT, for different currents and PCB material. Maximizing the area and mass of the ground plane
and additional vias between the pad of the Out Pin will improve the thermal impedance (JA) of the AL5809Q.
Figure 4 Power Dissipation vs. Ambient Temperature
@ TJ = +150°C
AL5809Q
Document number: DS38233 Rev. 1 - 2
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Figure 5 Maximum VINOUT vs. Ambient Temperature
@ TJ = +150°C
March 2016
© Diodes Incorporated
AL5809Q
Application Information (Cont.)
The AL5809Q can be used to provide LED current dimming driving the Out Pin via an external MOSFET switch to Ground (Figure 6a) for highside connected LEDs or a high-side switch for Ground-connected LEDs. The Out Pin current is then effectively switched on and off causing the
LED current to turn on and off.
a) PWM Dimming by External MOSFET
200Hz
500Hz
1KHz
1.5KHz
b) PWM Dimming by Power Supply VIN ON/OFF
Figure 6 PWM Dimming
200Hz
2KHz
90
150
80
135
500Hz
1KHz
1.5KHz
120
LED Current [mA ]
70
LED Current [mA]
60
50
40
30
20
105
90
75
60
45
30
VInOut=3V, 90mA
10
VInOut=3V, 150mA
15
0
0
0
10
20
30
40
50
60
70
80
90
0
100
10
20
30
40
50
60
70
80
90
100
Duty Cycle [%]
Duty Cycle [%]
Figure 7 PWM Dimming 90mA vs. Duty Cycle
200Hz
Figure 8 PWM Dimming 150mA vs. Duty Cycle
500Hz
1KHz
1.5KHz
9
8
LED Current [mA]
INFORMATON
ADVANCED
NEW PRODUCT
PWM Dimming
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 [%]
Figure 9 Zoomed-In with Duty Cycle ≤5% of Figure 8
AL5809Q
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AL5809Q
Typical Performance Characteristics (15mA, 20mA, 30mA, 40mA, 50mA Options)
15mA
20mA
25mA
30mA
40mA
50mA
LED Current [mA]
LED Current [mA]
20mA
25mA
30mA
40mA
50mA
60
50
40
30
20
10
TA=25
50
TA = 25°C
40
30
20
10
0
0
0
5
10
15
20
25
30
0
0.5
1
1.5
VInOut [V]
15mA
20mA
25mA
30mA
40mA
50mA
15mA_25C
LED Current Accuracy [%]
50
40
30
20
10
0
-25
-10
5
20
35
50
2.5
3
Figure 11 Startup Minimum Operating Voltage
60
-40
2
VInOut [V]
Figure 10 LED Current vs. VINOUT
LED Current [mA]
INFORMATON
ADVANCED
NEW PRODUCT
60
15mA
65
80
95
15mA_125C
15mA_-40C
10
8
6
4
2
0
-2
-4
-6
-8
-10
110 125
0
5
10
15
20
25
Temperature [⁰C]
30
35
40
45
50
55
60
VInOut [V]
Figure 12 LED Current vs. Ambient Temperature
Figure 13 LED Current Accuracy (%) vs. VINOUT Across
Temperature
T_Shut Down
T_Recovery
T_Recovery
25
20
15
10
5
LED Current [mA]
VInOut=3.5V
20mA
0
45
40
35
30
25
20
15 VInOut=
10 3.5V,
40mA
5
0
-5
100 105 110 115 120 125 130 135 140 145 150 155 160
LED Current [mA]
-5
100 105 110 115 120 125 130 135 140 145 150 155 160
Ambient Temperature [⁰C]
Ambient Temperature [⁰C]
Figure 15 THSD of 40mA Current Option
Figure 14 THSD of 20mA Current Option
AL5809Q
Document number: DS38233 Rev. 1 - 2
T_Shut Down
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AL5809Q
Typical Performance Characteristics (Continued) (60mA, 90mA, 150mA Options)
90mA
60mA
150mA
160
160
140
140
120
120
LED Current [mA]
INFORMATON
ADVANCED
NEW PRODUCT
60mA
100
80
60
40
90mA
150mA
100
80
60
40
TA=25⁰C
LED Current [mA]
TA=25⁰C
C
20
0
0
5
10
15
20
20
0
25
0
30
0.5
1
1.5
2
2.5
3
VInOut [V]
VInOut[V]
Figure 17 Startup Minimum Operating Voltage
Figure 16 LED Current vs. VInOut
VInOut=3.5
Temperature[⁰C]
Figure 18 LED Current across Temperature
T_Shut Down
Figure 19 LED Current Accuracy (%) vs. VINOUT across
Temperature
T_Recovery
T_Recovery
70
60
VInOut=3.5V
60mA
50
40
30
20
10
VInOut=3.5V
150mA
LED Current [mA]
LED Current [mA]
0
-10
100
160
140
120
100
80
60
40
20
0
-20
100
T_Shut Down
110
120
130
140
150
160
130
140
150
160
Figure 21 THSD of 150mA Current Option
Figure 20 THSD of 60mA Current Option
Document number: DS38233 Rev. 1 - 2
120
Temperature [⁰C]
Ambient Tempature [⁰C]
AL5809Q
110
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AL5809Q
INFORMATON
ADVANCED
NEW PRODUCT
Ordering Information (Note 12)
Part Number
LED Current Package
Opion
Code
Packaging
7” Tape and Reel
Part Number
Quantity
Suffix
Qualification
(Note 13)
AL5809-15QP1-7
15mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-20QP1-7
20mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-25QP1-7
25mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-30QP1-7
30mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-40QP1-7
40mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-50QP1-7
50mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-60QP1-7
60mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-90QP1-7
90mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-100QP1-7
100mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-120QP1-7
120mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
AL5809-150QP1-7
150mA
P1
PowerDI123 (Type B)
3,000
-7
Automotive Compliant
Notes:
12. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
13. AL5809Q has been qualified to AEC-Q100 grade 3 and is classified as “Automotive Compliant” supporting PPAP documentation.
See AL5809 datasheet for commercial qualified versions.
AL5809Q
Document number: DS38233 Rev. 1 - 2
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AL5809Q
INFORMATON
ADVANCED
NEW PRODUCT
Marking Information
Part Number
AL5809Q
Document number: DS38233 Rev. 1 - 2
AL5809-15QP1-7
Package
PowerDI123 (Type B)
AL5809-20QP1-7
PowerDI123 (Type B)
C2
AL5809-25QP1-7
PowerDI123 (Type B)
CA
AL5809-30QP1-7
PowerDI123 (Type B)
C3
AL5809-40QP1-7
PowerDI123 (Type B)
C4
AL5809-50QP1-7
PowerDI123 (Type B)
C5
AL5809-60QP1-7
PowerDI123 (Type B)
C6
AL5809-90QP1-7
PowerDI123 (Type B)
C7
AL5809-100QP1-7
PowerDI123 (Type B)
CB
AL5809-120QP1-7
PowerDI123 (Type B)
C8
AL5809-150QP1-7
PowerDI123 (Type B)
C9
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Identification Code
C1
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AL5809Q
Package Outline Dimensions
Please see AP02001 at http://www.diodes.com/_files/datasheets/ap02001.pdf for the latest version.
INFORMATON
ADVANCED
NEW PRODUCT
PowerDI123 (Type B)
C
PowerDI123
(Type B)
Dim Min Max Typ
A 3.50 3.90 3.70
B 2.60 3.00 2.80
C 1.63 1.93 1.78
D 0.93 1.00 0.98
E 0.85 1.25 1.00
H 0.15 0.25 0.20
L
0.50 0.80 0.65
All Dimensions in mm
E
B
H
D
L
E
A
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/_files/datasheets/ap02001.pdf for the latest version.
PowerDI123 (Type B)
X
Dimensions
Y
G
X
X1
Y
G
Value
(in mm)
2.000
1.050
4.100
1.500
X1
Taping Orientation
The taping orientation of the other package type can be found on our website at http://www.diodes.com/_files/datasheets/ap02007.pdf.
PowerDI123 (Type B)
AL5809Q
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AL5809Q
IMPORTANT NOTICE
INFORMATON
ADVANCED
NEW PRODUCT
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