CL520
Application Circuits
Ground Referenced LEDs
VIN
VDD
OUT
GND
100nF
20mA
VLED + 4.75V ≤ VIN ≤ VLED + 90V
Control
I
LED = IOUT + IDD
Pin Description
Pin #
TO-252
TO-92
D-PAK
(N3)
Name
Description
(K4)
Supply voltage for the CL520. Bypass locally with a 100nF capacitor to
ground.
1
1
VDD
3
2
OUT
GND
Constant current output (sink).
Circuit common.
4
3
Doc.# DSFP-CL520
A052013
Supertex inc.
www.supertex.com
4