Datasheet

Copyright © 2009-2010 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree, the Cree logo and XLamp are registered trade-
marks of Cree, Inc.
5
XLAMP XP-G LEDS
ELECTRICAL CHARACTERISTICS (T
J
= 25°C)
THERMAL DESIGN
The maximum forward current is determined by the thermal resistance between the LED junction and ambient. It is
crucial for the end product to 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.
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75
Forward Current (mA)
Forward Voltage (V)
0
200
400
600
800
1000
1200
1400
1600
0 20 40 60 80 100 120 140
Maximum Current (mA)
Ambient Temperature (ºC)
Rj-a = 10°C/W
Rj-a = 15°C/W
Rj-a = 20°C/W
Rj-a = 25°C/W
Rj-a = 10°C/W
Rj-a = 15°C/W
Rj-a = 20°C/W
Rj-a = 25°C/W