CL2K4-G Datasheet, PDF (1/7 Pages) Supertex, Inc – Simple 90V, 20mA, Temperature Compensated Constant Current LED Driver IC

Supertex inc.
CL2
Simple 90V, 20mA, Temperature Compensated
Constant Current LED Driver IC
Features
►► 5.0 to 90V operating range (V_A-B)
►► 20mA ±10% at 5.0 - 90V
►► 0.01%/°C typical temperature coefficient
►► Available in TO-243AA (SOT-89), TO-252 (D-PAK),
& TO-92 packages
►► Can be paralleled for higher current
Applications
►► LED driver
►► Industrial lamp indicators
►► Signage
►► Accent lighting
►► Automotive
►► Constant current source
►► Constant current sink
General Description
The Supertex CL2 is a high voltage, temperature compensated,
constant current source. The device is trimmed to provide
a constant current of 20mA±10% at an input voltage of 5.0
- 90V. 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. Multiple CL2s can also be used in parallel to
provide higher currents such as 40mA, 60mA or 80mA. The
device is available in TO-243AA (SOT-89), TO-252 (D-PAK),
and TO-92 packages.
Typical Application Circuit
Up to 90V
+ V_LED(total)
100nF
I_LED
<20mA
VA
CL2
Functional Circuit
Diagram
VA
VB
+
Control Circuit
and Temperature
Compensation
V_LED(total)
VB
-
Doc.# DSFP-CL2
C071012
Supertex inc.
www.supertex.com