XPCWHT-L1-0000-00A01 Datasheet, PDF (11/18 Pages) Cree, Inc – XLamp XP-C LEDs

xlAMP xp-c LEDS
Thermal^TD^hes^eig^rmn ^{al Design}
The maximum forward current is determined by the thermal resistance between the LED junction and ambient. It is
crucial for the end prod6u0c0t to be designed in a manner that minimizes the thermal resistance from the solder point to
ambient in o_Xr_Pd_Cer to optimize lamp life and optical characteristics.
500
White, Royal Blue, Blue
600
400
500
300
400
200
300
100
200
0
0
100
50
100
150
Ambient Temperature (ºC)
Rj-a = 15°C/W
Rj-a = 20°C/W
Rj-a = 25°C/W
Rj-a = 30°C/W
Rj-a = 15°C/W
Rj-a = 20°C/W
Rj-a = 25°C/W
Rj-a = 30°C/W
200
0
Relative 0Inte2n0 sity40 vs.60Cur8r0ent10(0Tj =12025º1C40 ) 160
Ambient Temperature (ºC)
Green
600
500
400
Rj-a = 25°C/W
300
Rj-a = 30°C/W
Rj-a = 35°C/W
Rj-a = 40°C/W
200
100
0
0
20
40
60
80
100
120
140
160
Ambient Temperature (ºC)
Copyright © 2008-2013 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree^®, the Cree logo and XLamp^® are registered
trademarks of Cree, Inc.
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