Datasheet

33
Copyright © 2013-2015 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
®
CXa3590 LED
OPERATING LIMITS
The maximum current rating of the CXA3590 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 21 for the location of the Tc measurement point.
CXA3590
0
400
800
1200
1600
2000
2400
2800
3200
3600
4000
0 25 50 75 100 125 150
If (mA)
Case Temperature (°C)
36 V
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 25 50 75 100 125 150
If (mA)
Case Temperature (°C)
72 V