Supertex inc.
Linear, Fixed Constant Current
LED Driver
Features
►
20mA ±10% constant current drive
►
1.0V dropout
►
90V rating for transient immunity
►
Temperature compensated
►
4.75 - 90V supply range
CL520
General Description
The
CL520 is a fixed, linear current regulator designed for
driving LEDs at 20mA. With a maximum rating of 90V, it is able
to withstand transients without the need for additional transient
protection circuitry. It is ideally suited for applications employing
single or multiple LEDs.
The minimum dropout voltage of 1.0V accomodates extra
LEDs, permits lower supply voltages, and provides more
efficient operation.
The CL520 is offered in TO-252(D-PAK) and TO-92 packages.
Applications
►
Specialty lighting
►
Low voltage signage
Typical Application Circuit
V
IN
4.75 – 90V
100nF
VDD
20mA
OUT
20mA
Control
CL520
GND
Doc.# DSFP-CL520
A052013
Supertex inc.
www.supertex.com
SUPERTEX [ Supertex, Inc ]
