Characteristic Curves
TheseꢀareꢀrepresentativeꢀmeasurementsꢀforꢀtheꢀTR5270ꢀLEDꢀproduct.ꢀActualꢀcurvesꢀwillꢀvaryꢀslightlyꢀforꢀtheꢀvariousꢀ
radiantꢀfluxꢀandꢀdominantꢀwavelengthꢀbins.ꢀ
Relative Intensity vs. Forward Current
Relative Light Intensity Vs Junction Temperature
200%
175%
150%
125%
100%
75%
100%
95%
90%
85%
80%
75%
70%
50%
25%
0%
0
62.5
125
187.5
250
25
50
75
100
125
150
If (mA)
Junction Temperature (°C)
Wavelength Shift vs. Forward Current
Dominant Wavelength Shift Vs Junction Temperature
3
2
6
5
4
1
3
0
2
1
-1
-2
-3
0
-1
-2
0
62.5
125
187.5
250
25
50
75
100
125
150
If (mA)
Junction Temperature (°C)
Forward Current vs. Forward Voltage
Voltage Shift Vs Junction Temperature
200
175
150
125
100
75
0
-0.050
-0.100
-0.150
-0.200
-0.250
-0.300
-0.350
-0.400
50
25
0
0
1
2
3
4
25
50
75
100
125
150
Vf (V)
Junction Temperature (°C)
Cree,ꢀInc.
4600ꢀSiliconꢀDrive
Durham,ꢀNCꢀ27703
USAꢀTel:ꢀ+1.919.313.5300
www.cree.com
Copyrightꢀ©ꢀ2011ꢀCree,ꢀInc.ꢀAllꢀrightsꢀreserved.ꢀTheꢀinformationꢀinꢀthisꢀdocumentꢀisꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀCreeꢀandꢀtheꢀ
Creeꢀlogoꢀareꢀregisteredꢀtrademarks,ꢀandꢀTRꢀandꢀTR5270ꢀareꢀtrademarksꢀofꢀCree,ꢀInc.ꢀ
5
CPR3ET Rev. -
CREE [ CREE, INC ]
