XQ-B Datasheet, PDF (5/11 Pages) Marktech Corporate – Cree XQ-B White Series on Board

XLamp^® XQ-B LED
Typical Spatial Radiation Pattern
Typical Spatial Distribution
110
100
90
80
70
60
50
40
30
20
10
0
-90
-70
-50
-30
-10
10
30
50
70
90
Angle (º)
Thermal Design
Thermal Design ^{The maximum forward current is determined by the thermal resistance between the LED junction and ambient. It is crucial for the end}
pr_po_ad_ru_ac_llt_et_lo be designed in a manner that minimizes the thermal resistance from the solder point to ambient in order to optimize lamp life
and optical characteristics.
350
300
250
200
150
100
50
0
0
Rj-a = 20°C/W
Rj-a = 25°C/W
Rj-a = 30°C/W
Rj-a = 35°C/W
20
40
60
80
100
120
140
160
Ambient Temperature (ºC)
Copyright © 2014-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree^® and XLamp^® are registered trademarks and the Cree logo is a trademark of
Cree, Inc. UL^® and the UR logo are registered trademarks of UL LLC.
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