SURFACE MOUNT LED LAMP
STANDARD BRIGHT 1206
QTLP650C-2 / QTLP650D-2
HER
QTLP650C-4 / QTLP650D-4
Green
QTLP650C-B
Blue
TYPICAL PERFORMANCE CURVES
Fig. 1 Forward Current vs. Forward Voltage
90
2.0
QTLP650C-3 / QTLP650D-3
Yellow
QTLP650C-7 / QTLP650D-7
AlGaAs Red
Fig. 2 Relative Luminous Intensity vs.
DC Forward Current
I
F
- FORWARD CURRENT (mA)
70
60
50
40
30
20
10
0
1.0
2.0
2.5
3.0
4.0
5.0
BLUE
AlGaAs
RED
HER
GREEN
RELATIVE LUMNOUS INTENSITY
(NORMALIZED AT 20 mA)
80
1.5
AlGaAs
RED
YELLOW
1.0
BLUE
0.5
HER
YELLOW
GREEN
0.0
0
5
10
15
20
25
30
V
F
- FORWARD VOLTAGE (V)
I
F
- DC FORWARD CURRENT (mA)
Fig. 3 Relative Intensity vs. Peak Wavelength
HER
BLUE
GREEN
YELLOW
AlGaAs RED
1.0
RELATIVE INTENSITY
0.5
0
300
350
400
450
500
550
600
650
700
750
WAVELENGTH (nm)
Fig.5 Maximum Forward Current
vs. Ambient Temperature
50
Fig.4 Radiation Diagram
-20
藲
-10
藲
0
藲
10
藲
20
藲
IF - FORWARD CURRENT (mA)
40
-30
藲
-40
藲
-50
藲
-60
藲
-70
藲
-80
藲
30
藲
40
藲
50
藲
60
藲
70
藲
80
藲
30
20
10
-90
藲
90
藲
1.0 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1.0
QTLP650C
QTLP650D
REL. LUMINOUS INTENSITY (%)
0
0
20
40
60
80
100
T
A
- AMBIENT TEMPERATURE (藲C)
漏 2003 Fairchild Semiconductor Corporation
Page 3 of 7
2/12/03