Characteristic Curves
TheseꢀareꢀrepresentativeꢀmeasurementsꢀforꢀtheꢀEZBright400.ꢀꢀActualꢀcurvesꢀwillꢀvaryꢀslightlyꢀforꢀtheꢀvariousꢀradiantꢀfluxꢀ
andꢀdominantꢀwavelengthꢀbins.
Forward Current vs. Forward Voltage
Relative Light Intensity vs Junction Temperature
200
175
150
125
100
75
100%
95%
90%
85%
80%
75%
70%
65%
50
25
0
25
50
75
100
125
150
0
1
2
3
4
5
Vf (V)
Junction Temperature (°C)
Relative Intensity vs. Forward Current
Voltage Shift vs Junction Temperature
150%
125%
100%
75%
50%
25%
0%
0.100
0.000
-0.100
-0.200
-0.300
-0.400
-0.500
-0.600
0
25
50
75
100
125
150
175
200
225
25
50
75
100
125
150
Junction Temperature (°C)
If (mA)
Dominant Wavelength Shift vs Junction Temperature
Wavelength Shift vs. Forward Current
16
12
8
6
5
4
3
4
2
1
0
0
-4
-8
-1
-2
0
25
50
75
100
125
150
175
200
225
25
50
75
100
125
150
Junction Temperature (°C)
If (mA)
Cree,ꢀInc.
4600ꢀSiliconꢀDrive
Durham,ꢀNCꢀ27703
USAꢀTel:ꢀ+1.919.313.5300
www.cree.com
Copyrightꢀ©ꢀ2009ꢀCree,ꢀInc.ꢀAllꢀrightsꢀreserved.ꢀTheꢀinformationꢀinꢀthisꢀdocumentꢀisꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀCreeꢀandꢀtheꢀ
Creeꢀlogoꢀareꢀregisteredꢀtrademarks,ꢀandꢀEZBright,ꢀEZ,ꢀandꢀEZ400ꢀareꢀtrademarksꢀofꢀCree,ꢀInc.ꢀ
4
CPR3ED Rev. -
CREE [ CREE, INC ]
