AL5809-20QP1-7 [DIODES]
LED Driver,;
| 型号： | AL5809-20QP1-7 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | LED Driver, 驱动 接口集成电路 |
| 文件： | 总12页 (文件大小：723K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AL5809Q
AUTOMOTIVE COMPLIANT 60V TWO TERMINAL CONSTANT CURRENT LED DRIVER
PowerDI123 (Type B)
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 after a short delay once the voltage across its
terminals reaches approximately 1.5V. Its 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 and is
Automotive Compliant supporting PPAPs.
Applications
Features
Automotive Interior Lamps
Automotive Parking Lights
Instrumentation Illumination
Robust Power Dissipation Up to 1.5W for PowerDI123 (Type B)
-40°C to +150°C Junction Temperature Range
±5% LED Current Tolerance
Large Number of Output Current Options available in
PowerDI123 (Type B) Package:
15mA, 20mA, 25mA, 30mA, 40mA, 50mA and 60mA
qualified to AEC-Q100 Grade 1
90mA, 100mA, 120mA, and 150mA qualified to
AEC-Q100 Grade 3
2.5V to 60V Operating Voltage Between Two Terminals
Automotive Compliant with TS16949 Certification
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
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.
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Pin Descriptions
Pin Number
(PowerDI123 (Type B))
Pin Name
Function
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 high-side LED string application, connect the LED anode terminal to the “OUT” terminal.
IN
1
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 high-side LED string application, connect the LED cathode terminal to the “OUT” terminal.
OUT
2
Functional Block Diagram
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Absolute Maximum Ratings
Symbol
VINOUT
IINOUT
Parameter
Rating
80
Unit
V
“\” Voltage Relative to “OUT” Pin
LED Current from “In” to “OUT”
Human Body Model ESD Protection
Machine Model ESD Protection
Charged Device Model ESD Protection
Operating Junction Temperature
Storage Temperature
180
mA
V
ESD HBM
ESD MM
ESD CDM
TJ
4,000
400
V
1,000
V
-40 to +175
-55 to +150
°C
°C
TST
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.
Package Thermal Data
θJC
θJA
PDIS
Package
Thermal Resistance
Junction-to-Case
Thermal Resistance
Junction-to-Ambient
TA = +25°C, TJ = +150°C
PowerDI123 (Type B)
PowerDI123 (Type B)
27.15°C/W
17.81°C/W
148.6°C/W (Note 5)
81.4°C/W (Note 6)
0.84W
1.53W
Notes:
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.
Recommended Operating Conditions (Note 8)
Symbol
VINOUT
IINOUT
tPWM(ON)
tPWM(OFF)
TJ
Parameter
Min
2.5
15
Max
60
Unit
V
“IN” Voltage Range Relative to “OUT” Pin (Notes 7 and 8)
LED Current (Note 9)
150
—
mA
PWM pulse width in dimming mode on-time
500
500
-40
µs
PWM pulse width in dimming mode on-time
—
Operating Junction Temperature Range (Note 8)
Operating Ambient Temperature Range AEC-Q100 Grade 3 (Note 8)
Operating Ambient Temperature Range AEC-Q100 Grade 1 (Note 8)
+150
°C
°C
°C
-40
-40
+85
TA
+125
TA
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Electrical Characteristics (VINOUT = 3.5V) (@TA = +25°C, unless otherwise specified.) (Note 8)
Symbol
Parameter
Condition
Min
2.5
Typ
—
Max
Unit
In-Out Supply Voltage
(Notes 7 and 8)
60
15.75
17.3
21
V
VINOUT
TJ = -40°C to +150°C
14.25
12.8
19
15
—
TJ = +25°C
TJ = -40°C to +150°C
TJ = +25°C
AL5809-15QP1-7
20
—
AL5809-20QP1-7
AL5809-25QP1-7
AL5809-30QP1-7
17
23
TJ = -40°C to +150°C
TJ = +25°C
23.75
21.4
28.5
25
—
26.25
28.6
31.5
TJ = -40°C to +150°C
TJ = +25°C
30
25.8
38
—
40
—
34.2
42
TJ = -40°C to +150°C
TJ = +25°C
AL5809-40QP1-7
AL5809-50QP1-7
AL5809-60QP1-7
AL5809-90QP1-7
AL5809-100QP1-7
AL5809-120QP1-7
AL5809-150QP1-7
34.6
47.5
44
45.4
52.5
56
TJ = -40°C to +150°C
TJ = +25°C
50
—
mA
IINOUT
IINOUT Current Accuracy
TJ = -40°C to +150°C
TJ = +25°C
57
60
—
63
54
66
TJ = -40°C to +150°C
TJ = +25°C
85.5
81
90
—
94.5
99
TJ = -40°C to +150°C
TJ = +25°C
95
100
—
105
110
126
132
157.5
165
90
TJ = -40°C to +150°C
TJ = +25°C
114
108
142.5
135
120
—
TJ = -40°C to +150°C
TJ = +25°C
150
—
TJ = -40°C to +150°C
VINOUT = 2.5V to 60V
(Note 10)
—
1
1
—
2
%/V
V
ILINE
VMIN
TSHDN
THYS
IINOUT Current Line Regulation
Minimum Power Up Voltage
TA = +25°C
1.5
Increase VINOUT (Note 11)
TJ = -40°C to +150°C
Thermal Shutdown Junction
Temperature
—
—
—
—
—
—
+165
+30
—
—
°C
°C
Thermal Shutdown Hysteresis
Notes:
7. All voltages unless otherwise stated are measured with respect to the OUT Pin.
8. Subject to maximum junction temperature of +150°C not being exceeded. 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 and Grade 1.
9. The LED operating current is determined by the AL5809Q current option index XXX, AL5809Q-XXXP1-7.
10. Measured percentage change of LED current variation when V
INOUT
11. Apply the power linearly to the chip until the device starts to turn on.
varies from 2.5V to 60V for each current option.
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Application Information
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.
(b) High-Side Configuration
(a) Low-Side Configuration
Figure 3 Higher LED Current by Parallel Configuration of AL5809Q
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Application Information (Continued)
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
with 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
Figure 5 Maximum VINOUT vs. Ambient Temperature
@ TJ = +150°C
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Application Information (Cont.)
PWM Dimming
The AL5809Q can be used to provide LED current dimming driving the Out Pin via an external MOSFET switch to Ground (Figure 6a) for high-
side 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. The dimming effect can be achieved by varying the PWM signal duty cycle.
a) PWM Dimming by External MOSFET
b) PWM Dimming by Power Supply VIN ON/OFF
Figure 6 PWM Dimming
Recommended PWM Frequency and Dimming Range
Duty Cycle (%)
Minimum Maximum
95
90
PWM Frequency
(Hz)
100
200
5
10
Test conditions (Figure 6a): PWM frequency 100Hz–200Hz Square
wave, 0-4V gate voltage, VIN = 6V, 1 LED, AL5809-30mA
Use the following formulae to calculate the Min and Max duty cycle:
Min. Duty cycle (%) =
Max. Duty cycle (%) =
Notes: tON_MIN = 500µs (Min. value), and tOFF_MIN = 500µs (Min. value) as
listed in the Recommended Operating Conditions – see also Figure 7.
Figure 7 Minimum On Pulse Width (tON_MIN)
PWM Dimming Performance
Figure 8 PWM Dimming 30mA vs. Duty Cycle
Figure 9 Low Duty Cycle Zoomed-in of Figure 7
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Typical Performance Characteristics (15mA, 20mA, 30mA, 40mA, 50mA Options)
15mA
20mA
25mA
30mA
40mA
50mA
15mA
30mA
20mA
40mA
25mA
50mA
60
50
40
30
20
10
0
60
50
40
30
20
10
0
TA = 25°C
TA=25
0
5
10
15
VINOUT [V]
20
25
30
0
0.5
1
1.5
2
2.5
3
VINOUT [V]
Figure 11 Startup Minimum Operating Voltage
Figure 10 LED Current vs. VINOUT
15mA
20mA
25mA
30mA
40mA
50mA
15mA_25C
15mA_125C
15mA_-40C
60
50
40
30
20
10
0
10
8
6
4
2
0
-2
-4
-6
-8
-10
-40 -25 -10
5
20
35
50
65
80
95 110 125
0
5
10
15
20
25
30
35
40
45
50
55
60
Temperature [⁰C]
VINOUT[V]
Figure 12 LED Current vs. Ambient Temperature
Figure 13 LED Current Accuracy (%) vs. Across Temperature
VINOUT
3.5V,
40mA
=
VINOUT=3.5V
20mA
Figure 15 THSD of 40mA Current Option
Figure 14 THSD of 20mA Current Option
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Typical Performance Characteristics (Continued) (60mA, 90mA, 150mA Options)
60mA
90mA
150mA
160
140
120
100
80
60
40
TA=25⁰C
TA=25⁰C
20
0
0
0.5
1
1.5
2
2.5
3
VINOUT [V]
Figure 17 Startup Minimum Operating Voltage
Figure 16 LED Current vs. VINOUT
VINOUT =3.5V
VINOUT [V]
Temperature[⁰C]
Figure 18 LED Current across Temperature
Figure 19 LED Current Accuracy (%) vs. VINOUT across
Temperature
VINOUT=3.5V
60mA
VINOUT=3.5V
150mA
Figure 20 THSD of 60mA Current Option
Figure 21 THSD of 150mA Current Option
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© Diodes Incorporated
AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Ordering Information (Note 12)
7” Tape and Reel
Part Number
Package
Code
LED Current
Part Number
Qualification
(Note 13)
Packaging
Opion
Quantity
Suffix
AL5809-15QP1-7
AL5809-20QP1-7
AL5809-25QP1-7
AL5809-30QP1-7
AL5809-40QP1-7
AL5809-50QP1-7
AL5809-60QP1-7
AL5809-90QP1-7
AL5809-100QP1-7
AL5809-120QP1-7
AL5809-150QP1-7
15mA
20mA
25mA
30mA
40mA
50mA
60mA
90mA
100mA
120mA
150mA
P1
P1
P1
P1
P1
P1
P1
P1
P1
P1
P1
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
PowerDI123 (Type B)
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
-7
Automotive Compliant
Automotive Compliant
Automotive Compliant
Automotive Compliant
Automotive Compliant
Automotive Compliant
Automotive Compliant
Automotive Compliant
Automotive Compliant
Automotive Compliant
Automotive Compliant
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
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 and is classified as “Automotive Compliant” supporting PPAP documentation.
60mA, 90mA, 100mA, 120mA and 150mA versions have been qualified to AEC-Q100 Grade 3.
15mA, 20mA, 25mA, 30mA, 40mA and 50mA have been qualified to AEC-Q100 Grade 1.
See AL5809 datasheet for commercial qualified versions.
Marking Information
PowerDI123 (Type B)
Part Number
AL5809-15QP1-7
AL5809-20QP1-7
AL5809-25QP1-7
AL5809-30QP1-7
AL5809-40QP1-7
AL5809-50QP1-7
AL5809-60QP1-7
AL5809-90QP1-7
AL5809-100QP1-7
AL5809-120QP1-7
AL5809-150QP1-7
Identification Code
C1
C2
CA
C3
C4
C5
C6
C7
CB
C8
C9
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
PowerDI123 (Type B)
PowerDI123
(Type B)
C
E
Dim Min Max Typ
A
B
C
D
E
H
L
3.50 3.90 3.70
2.60 3.00 2.80
1.63 1.93 1.78
0.93 1.00 0.98
0.85 1.25 1.00
0.15 0.25 0.20
0.50 0.80 0.65
B
H
D
L
All Dimensions in mm
E
A
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
PowerDI123 (Type B)
X
Value
Dimensions
(in mm)
2.000
1.050
4.100
1.500
Y
G
X
X1
Y
G
X1
Taping Orientation
The taping orientation of the other package type can be found on our website at https://www.diodes.com/assets/Datasheets/ap02007.pdf.
PowerDI123 (Type B)
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AL5809Q
Document number: DS38233 Rev. 2 - 2
AL5809Q
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2017, Diodes Incorporated
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Document number: DS38233 Rev. 2 - 2
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SI9122E
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