View CL2_1065784.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

CL2
Initial Release
Simple 90V 20mA Temperature Compensated Constant Current LED Driver IC
Features
5.0V to 90V operating range (VA-B) 20mA 10% at 5-90V 0.01% / C Typical Temperature Coefficient TO-243AA (SOT-89), TO-252 (D-PAK), & TO-92 packages No external components (two terminal device) Can be paralleled for higher current
General Description
The Supertex CL2 is a high voltage, temperature compensated, constant current source. The device is trimmed to provide a constant current of 20mA10% 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. 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
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)
ILED <20mA VB Control Circuit and Temperature Compensation
+
VLED(total)
VB
NR062905
1
CL2
Ordering Information
Order Number / Package TO-92 CL2N3 TO-243AA* CL2N8 TO-252 CL2K4
*Same as SOT-89 product supplied on 2000 piece tape reels.
Thermal Characteristics
Package TO-92 TO-243AA (SOT-89) TO-252 (D-PAK) Power Dissipation @ TA = 25C 0.6W 1.3W* 2.0W* JC C/W 125 15 6.0 JA C/W 170 78* 50*
* Mounted on FR4 board; 25mm x 25mm x 1.57mm.
Absolute Maximum Ratings*
VA-B, Operating Voltage TJ, Operating Junction Temperature Ts, Storage Temperature 100V -40C to +125C -55C to +150C
*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
TO-25 2 (D-PAK)
NC VB
VA NC VB
(TO-92 )
VA VB
NC
TO-243A A (SOT-89)
NC = No Connect
2
NR062905
CL2
Electrical Characteristics (@ TJ = 25C unless otherwise specified)
Symbol VA-B IA-B IA-B/T TJ RA-B Parameter Maximum operating voltage Current regulation IA-B temperature coefficient Operating junction temperature Dynamic resistance Min 18.0 Typ 20.0 0.01 -40 300k 125 Max 90 22.0 Units V mA %/C C Conditions VA-B = 5-90V VA-B = 45V, TJ = -40C to 100C
Output Current vs. Voltage
25 20 15 10 5 0 0 10 20 30 40 50 V A-B
3
60
70
80
90
100
NR062905
CL2
CL2 for Multiple LED Strings
CL2 for Higher Current
4
NR062905
CL2 3 Lead TO-252 (D-PAK) Package (K4)
(6.350 to 6.730)
Measurement Legend =
Dimensions in Inches (Dimensions in Millimeters)
5
NR0629705
CL2
3 Lead TO-92 Plastic Package (N3)
0.190 0.020 (4.826 0.508) 0.190 0.020 (4.826 0.508) 0.050 MAX (1.270) Uncontrolled Lead Dia. 5 NOM
D
A
0.500 MIN (12.700) 0.018 Tp y (0.457)
Seating Plane
L
123
b
0.050 0.005 (1.270 0.127) 0.100 0.005 (2.540 0.127)
C e1
0.015 0.005 Typ (0.381 0.127) Before Lead Finish
e
H
10 NOM
0.050 0.005 (1.270 0.127) 0.140 0.005 (3.556 0.127)
0.090 R NOM (2.286)
23
E
Note: Circle (e.g. B ) indicates JEDEC Reference.
Measurement Legend =
Dimensions in Inches (Dimensions in Millimeters)
6
NR062905
CL2 3-LEAD TO-243AA (SOT-89) Surface Mount Package (N8)
Dimensions Inches Symbol A b1 b2 b3 C D E e e1 H L K M Min 0.055 0.014 0.017 0.064 0.014 0.173 0.090 Max 0.063 0.019 0.023 0.072 0.017 0.181 0.102 Millimeters Min 1.40 0.35 0.44 1.62 0.35 4.40 2.29 3.00BSC 1.15BSC 3.90 0.88 0.93 1.20 4.25 1.20 1.05 1.25 Max 1.60 0.48 0.58 1.83 0.44 4.60 2.60
.118BSC .059BSC 0.156 0.035 0.037 0.047 0.167 0.047 0.040 0.049
Doc#: DSFP-CL2
NR062905
7

▲Up To Search▲

Price & Availability of CL2

	To Download CL2 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .