Datasheet

33
Copyright © 2012-2015 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
, the Cree logo, XLamp
®
and EasyWhite
®
are
registered trademarks of Cree, Inc. UL
®
and the UR logo are registered trademarks of UL LLC.
3
XLamp
®
CXa1512 LED
OPERATING LIMITS
The maximum current rating of the CXA1512 is dependent on the case temperature (Tc) when the LED has reached
thermal equilibrium under steady-state operation. The graphs shown below assume that the system design employs
good thermal management (thermal interface material and heat sink) and may vary when poor thermal management is
employed. Please refer to the Mechanical Dimensions section on page 25 for the location of the Tc measurement point.
CXA1512 - 18 V
0
200
400
600
800
1000
1200
1400
0 25 50 75 100 125 150
If (mA)
Case Temperature (°C)
18 V
CXA1512 - 36 V
0
100
200
300
400
500
600
700
0 25 50 75 100 125 150
If (mA)
Case Temperature (°C)
36 V