CL2N8 [SUPERTEX]
Simple 90V 20mA Temperature Compensated Constant Current LED Driver IC; 简单的90V 20毫安温度补偿恒流LED驱动器IC
| 型号： | CL2N8 |
| 厂家： | 
Supertex, Inc |
| 描述： | Simple 90V 20mA Temperature Compensated Constant Current LED Driver IC |
| 文件： | 总7页 (文件大小：250K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CL2
Initial Release
Simple 90V 20mA Temperature Compensated
Constant Current LED Driver IC
Features
General Description
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5.0V to 90V operating range (VA-B)
The Supertex CL2 is a high voltage, temperature
20mA ±10% at 5-90V
0.01% / °C Typical Temperature
Coefficient
compensated, constant current source. The device is
trimmed to provide a constant current of 20mA±10%
at an input voltage of 5-90V. No external
components are required. The device can be used
as a two terminal constant current source or constant
current sink.
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TO-243AA (SOT-89), TO-252 (D-PAK),
& TO-92 packages
No external components (two terminal
device)
Can be paralleled for higher current
A typical application for the CL2 is to drive LEDs with
a constant current of 20mA. They can also be used
in parallel to provide higher currents such as 40mA,
60mA or 80mA. The device is available in SOT-89,
TO-252 (D-PAK), and TO-92 packages.
Applications
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LED driver
Industrial lamp indicators
Signage
Accent lighting
Automotive
Constant current source
Constant current sink
Typical Application Circuit
Functional Circuit Diagram
VA
VA
CL2
Up to 90V
+ VLED(total)
VB
Control Circuit
and Temperature
Compensation
+
ILED
V
<20mA
LED(total)
-
VB
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CL2
Ordering Information
Order Number / Package
TO-243AA*
CL2N8
TO-92
CL2N3
TO-252
CL2K4
*Same as SOT-89 product supplied on 2000 piece tape reels.
Thermal Characteristics
Power Dissipation
θJC
°C/W
θJA
°C/W
Package
@ TA = 25°C
TO-92
0.6W
125
15
170
78*
50*
TO-243AA (SOT-89)
TO-252 (D-PAK)
1.3W*
2.0W*
6.0
* Mounted on FR4 board; 25mm x 25mm x 1.57mm.
Absolute Maximum Ratings*
VA-B, Operating Voltage
100V
TJ, Operating Junction Temperature
Ts, Storage Temperature
-40°C to +125°C
-55°C to +150°C
*Absolute Maximum Ratings are those values beyond which damage to the device
may occur. Functional operation under these conditions is not implied. Continuous
operation of the device at the absolute rating level may affect device reliability.
Package Options
VB
VA
VA NC VB
TO-252
NC
(D-PAK)
(TO-92)
VB
VA
VB
TO-243AA
(SOT-89)
NC = No Connect
2
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CL2
Electrical Characteristics (@ TJ = 25°C unless otherwise specified)
Symbol
VA-B
Parameter
Min
Typ
Max
90
Units
V
mA
Conditions
Maximum operating voltage
Current regulation
IA-B
18.0
20.0
0.01
22.0
VA-B = 5-90V
VA-B = 45V,
TJ = -40°C to 100°C
IA-B temperature coefficient
∆IA-B/∆T
%/°C
TJ
RA-B
Operating junction temperature
Dynamic resistance
-40
125
°C
Ω
300k
Output Current vs. Voltage
25
20
15
10
5
0
0
10
20
30
40
50
VA-B
60
70
80
90
100
3
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CL2
CL2 for Multiple LED Strings
CL2 for Higher Current
4
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CL2
3 Lead TO-252 (D-PAK) Package (K4)
(6.350 to 6.730)
Dimensions in Inches
(Dimensions in Millimeters)
Measurement Legend =
5
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CL2
3 Lead TO-92 Plastic Package (N3)
0.190 ± 0.020
(4.826 ± 0.508)
0.050
(1.270)
D
MAX
Uncontrolled
Lead Dia.
0.190 ± 0.020
A
(4.826 ± 0.508)
5° NOM
Seating Plane
0.500
(12.700)
L
b
MIN
Typ
123
0.018
(0.457)
C
0.015 ± 0.005
(0.381 ± 0.127)
Before Lead Finish
0.050 ± 0.005
(1.270 ± 0.127)
Typ
e
1
0.100 ± 0.005
e
(2.540 ± 0.127)
0.050 ± 0.005
(1.270 ± 0.127)
H
E
10° NOM
0.140 ± 0.005
3
(3.556 ± 0.127)
0.090
(2.286)
2
R NOM
Dimensions in Inches
Measurement Legend =
Note: Circle (e.g. B ) indicates JEDEC Reference.
(Dimensions in Millimeters)
6
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CL2
3-LEAD TO-243AA (SOT-89) Surface Mount Package (N8)
Dimensions
Inches
Millimeters
Min
Symbol
Min
Max
0.063
0.019
0.023
0.072
0.017
0.181
0.102
Max
1.60
0.48
0.58
1.83
0.44
4.60
2.60
A
b1
b2
b3
C
0.055
0.014
0.017
0.064
0.014
0.173
0.090
1.40
0.35
0.44
1.62
0.35
4.40
2.29
D
E
e
.118BSC
.059BSC
3.00BSC
1.15BSC
e1
H
0.156
0.167
0.047
0.040
0.049
3.90
0.88
0.93
1.20
4.25
1.20
1.05
1.25
L
0.035
0.037
0.047
K
M
NR062905
Doc#: DSFP-CL2
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