CL220 Datasheet, PDF (1/7 Pages) Supertex, Inc – Simple, 220V, 20mA, Temperature-Compensated, Constant Current, LED Driver IC

Supertex inc.
CL220
Simple, 220V, 20mA,
Temperature-Compensated, Constant Current,
LED Driver IC
Features
►► 5.0 to 220V operating range (V_A-B)
►► 20mA ±10% at 5.0 - 160V
►► 0.01% / °C typical temperature coefficient
►► Available in TO-252 (D-PAK) and TO-220 packages
►► Can be paralleled for higher current
Applications
►► Industrial lamp indicators
►► Signage
►► Accent lighting
►► Constant current source
►► Constant current sink
General Description
The Supertex CL220 is a high voltage, temperature-
compensated, 20mA constant current regulator. The device
operates at up to 220V, and is accurate to ±10% over a 5.0
- 160V range. The device can be used as a two terminal
constant current source or constant current sink.
A typical application for the CL220 is to drive LEDs with
a constant current of 20mA. Multiple CL220s can also be
used in parallel to provide higher currents such as 40mA,
60mA, 80mA, and so on. The device is available in the TO-
252 (D-PAK) and TO-220 packages.
Typical Application Circuit
Up to 220V
+ V_LED(TOTAL)
10nF
I_LED
20mA
VA
CL220
Functional
Circuit Diagram
VA
VB
+
Control Circuit
and Temperature
Compensation
V_LED(TOTAL)
VB
–
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: [phone] ● www.supertex.com