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AL5809-20S1-7

供电电压（最高）：60V 频率：- 类型：线性 内部开关：有 拓扑结构：- 供电电压（最低）：2.5V

器件类别：其他集成电路（IC）    LED驱动   

厂商名称：Diodes

厂商官网：http://www.diodes.com/

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器件参数
参数名称
属性值
输出电压
60V
供电电压（最高）
60V
输出/通道电流
20mA
工作温度
-40℃ ~ 125℃
类型
线性
内部开关
有
供电电压（最低）
2.5V
输出数
1
文档预览
AL5809
60V Two Terminal Constant Current LED Driver
PowerDI
Description
The AL5809 is a constant current linear LED driver and it provides a
cost-effective two pin solution. It has an excellent temperature
stability of 20ppm/°C and the 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 when the voltage between IN and OUT swings
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 offline applications.
The AL5809 is available in either thermally robust package
PowerDI123 or SOD-123 package.
Pin Assignments
1
IN
AL5809
XX Y W X
OUT
2
Features
2.5V to 60V Operating Voltage Between Two Terminals
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, 25mA, 30mA, 40mA, 50mA, 60mA, 90mA,
100mA, 120mA, and 150mA Available in PowerDI123 Package
15mA, 20mA, 25mA, 30mA, 40mA and 50mA available in SOD-
123 Package, Other Current Options Available by Request
Constant Current with Low Temperature Drift and High Power
Supply Rejection Ratio
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
®
Applications
Offline LED Lamps
LED Power Supplies
White Goods
LED Signs
Instrumentation Illumination
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.
POWERDI is a registered trademark of Diodes Incorporated.
AL5809
Document number: DS36625 Rev. 5 - 2
1 of 16
www.diodes.com
December 2016
© Diodes Incorporated
AL5809
Typical Applications Circuit
VIN
VIN
1
IN
AL5809
1
IN
AL5809
XX Y W X
OUT
2
High Side LED String
OUT
2
Pin Descriptions
Pin
Name
In
Pin
Number
(PowerDI123)
1
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 “Out” terminal.
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.
Out
2
Functional Block Diagram
AL5809
Document number: DS36625 Rev. 5 - 2
2 of 16
www.diodes.com
XX Y W X
Low Side LED String
December 2016
© Diodes Incorporated
AL5809
Absolute Maximum Ratings
Symbol
V
InOut
I
InOut
ESD HBM
ESD MM
T
J
T
ST
Caution:
Parameters
“In” Voltage Relative to “Out” Pin
LED Current from “In” to “Out”
Human Body Model ESD Protection
Machine Model ESD Protection
Operating Junction Temperature
Storage Temperature
Ratings
-0.3 to +80
180
4
400
-40 to +175
-55 to +150
Unit
V
mA
kV
V
°C
°C
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. 5 - 2
3 of 16
www.diodes.com
December 2016
© Diodes Incorporated
AL5809
Package Thermal Data
Package
PowerDI123
PowerDI123
SOD-123
θ
JC
Thermal Resistance
Junction-to-Case
27.15°C/W
17.81°C/W
69.56°C/W
θ
JA
Thermal Resistance
Junction-to-Ambient
148.61°C/W (Note 4)
81.39°C/W (Note 5)
278.42°C/W (Note 6)
P
DIS
T
A
= +25°C, T
J
= +125°C
0.68W
1.24W
0.36W
Recommended Operating Conditions
Symbol
V
InOut
I
InOut
T
A
Parameter
“In” Voltage Range Relative to “Out” Pin
LED Current (Note 7)
Operating Ambient Temperature Range (Note 8)
(V
InOut
= 3.5V) (Note 9)
Conditions
-
AL5809-15S1-7
AL5809-15P1-7
AL5809-20S1-7
AL5809-20P1-7
AL5809-25S1-7
AL5809-25P1-7
AL5809-30S1-7
AL5809-30P1-7
I
INOut
Current Accuracy
(±5% for over temperature)
AL5809-40S1-7
AL5809-40P1-7
AL5809-50S1-7
AL5809-50P1-7
AL5809-60P1-7
AL5809-90P1-7
AL5809-100P1-7
AL5809-120P1-7
AL5809-150P1-7
I
LINE
V
MIN
t
ON_MIN
t
OFF_MIN
T
SHDN
T
HYS
Notes:
Min
2.5
15
-40
Max
60
150
+125
Unit
V
mA
°C
Electrical Characteristics
Symbol
V
InOut
Parameter
In-Out Supply Voltage
Min
2.5
14.25
19
23.75
28.5
38
47.5
57
85.5
95
114
142.5
-
-
500
500
-
-
Typ
-
15
20
25
30
40
50
60
90
100
120
150
1
1.5
-
-
+165
+30
Max
60
15.75
21
26.25
31.5
42
52.5
63
94.5
105
126
157.5
-
-
-
-
-
-
Unit
V
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
T
A
= +25°C
T
A
= -40°C to +125°C
-
-
-
-
I
InOut
mA
I
InOut
Current Line Regulation
Minimum Power Up Voltage
Minimum On pulse width
Minimum Off pulse width
Thermal Shutdown
Thermal Shutdown Hysteresis
V
InOut
= 2.5V to 60V
(Note 10)
Increase V
InOut
(Note 11)
(Note 12, 13)
(Note 12, 13)
Junction Temperature
(Note 14)
-
%
V
µS
µS
°C
°C
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 heat-sink 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 heat-sink is needed.
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.
9. All voltages unless otherwise stated are measured with respect to OUT pin.
10. Measured by the percentage degree of LED current variation when V
InOut
varies from 2.5V to 60V each current option.
11. Apply the power linearly to the chip until the device starts to turn on.
12. t
ON_MIN
time includes the delay and the rise time needed for I
OUT
to reach 90% of its final value. t
OFF_MIN
time is the time needed for I
OUT
to drop below
10% of its final value.
13. This parameter only guaranteed by design, not tested in production.
14. Ambient temperature at which OTP is triggered may vary depending on application, PCB layout and material used.
AL5809
Document number: DS36625 Rev. 5 - 2
4 of 16
www.diodes.com
December 2016
© Diodes Incorporated
AL5809
Application Information
Description
The AL5809 is a constant current Linear LED driver and can be placed in series with LEDs as a High Side or a Low Side constant current
regulator. The AL5809 offers various current settings from 15mA up to 150mA and different current settings available upon request (contact
Diodes local sales office at http://www.diodes.com).
The AL5809 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 increases the reference current to the preset LED current of the AL5809.
Simple LED String
The AL5809 can be placed in series with LEDs as a Low Side/High Side constant current regulator. The number of the LEDs can vary from one
to as many as can be supported by the input supply voltage. The designer needs to calculate the maximum voltage between In and Out by
taking the maximum input voltage minus the voltage across the LED string (Figures 1 & 2).
VIN
VIN
1
IN
AL5809
1
IN
AL5809
XX Y W X
OUT
2
OUT
2
High Side LED String
Figure 1 Low Side LED String Tapping
Figure 2 High Side LED String Tapping
The AL5809 can also be used on the high side of the LEDs, see Figure 2. The minimum system input voltage can be calculated by:
V
IN(min)
= V
LED_CHAIN
+ 2.5V
Where V
LED_CHAIN
is the LED chain voltage.
The LED current can be increased by connecting two or more AL5809 in parallel in Figure 3.
VIN
VIN
1
IN
XX Y W X
XX Y W X
Low Side LED String
1
IN
XX Y W X
1
1
AL5809
...
AL5809
IN
XX Y W X
IN
XX Y W X
AL5809
...
AL5809
OUT
2
OUT
2
OUT
2
OUT
2
(a) Low Side Configuration
(b) High Side Configuration
Figure 3 Higher LED Current by Parallel Configuration of AL5809
AL5809
Document number: DS36625 Rev. 5 - 2
5 of 16
www.diodes.com
December 2016
© Diodes Incorporated
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