Characteristic Curves
TheseꢀareꢀrepresentativeꢀmeasurementsꢀforꢀtheꢀEZBright500.ꢀꢀActualꢀcurvesꢀwillꢀvaryꢀslightlyꢀforꢀtheꢀvariousꢀradiantꢀfluxꢀ
andꢀdominantꢀwavelengthꢀbins.
Relative Light Intensity vs Junction Temperature
Forward Current vs. Forward Voltage
100%
95%
90%
85%
80%
75%
70%
65%
300
250
200
150
100
50
0
0
1
2
3
4
5
25
50
75
100
125
150
Vf (V)
Junction Temperature (°C)
Voltage Shift vs Junction Temperature
Relative Intensity vs. Forward Current
0.100
0.000
175%
150%
125%
100%
75%
-0.100
-0.200
-0.300
-0.400
-0.500
-0.600
50%
25%
0%
0
50
100
150
200
250
300
350
25
50
75
100
125
150
If (mA)
Junction Temperature (°C)
Dominant Wavelength Shift vs Junction Temperature
Wavelength Shift vs. Forward Current
6
5
16
12
8
4
3
4
2
0
1
0
-4
-8
-1
-2
0
50
100
150
200
250
300
350
25
50
75
100
125
150
If (mA)
Junction Temperature (°C)
Cree,ꢀInc.
4600ꢀSiliconꢀDrive
Durham,ꢀNCꢀ27703
USAꢀTel:ꢀ+1.919.313.5300
www.cree.com
Copyrightꢀ©ꢀ2009ꢀCree,ꢀInc.ꢀAllꢀrightsꢀreserved.ꢀTheꢀinformationꢀinꢀthisꢀdocumentꢀisꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀCreeꢀandꢀtheꢀ
Creeꢀlogoꢀareꢀregisteredꢀtrademarks,ꢀandꢀEZBright,ꢀEZ,ꢀandꢀEZ500ꢀareꢀtrademarksꢀofꢀCree,ꢀInc.ꢀ
4
CPR3EB Rev. -
CREE [ CREE, INC ]
