6
RELATIVE EFFICIENCY
(NORMALIZED AT 20 mA)
0
I
PEAK
– PEAK FORWARD CURRENT – mA
0
0.6
0.8
30020 100
1.2
1.0
0.2
0.4
50 20010
DH As AlGaAs RED
η
PEAK
– RELATIVE EFFICIENCY
(NORMALIZED AT 20 mA)
0
I
PEAK
– PEAK FORWARD CURRENT – mA
0.4
0.6
0.8
1.0
9020 705040
1.3
1.1
HIGH PERFORMANCE GREEN
YELLOW
HIGH EFFICIENCY
RED/ORANGE
HER, ORANGE, YELLOW, HIGH
PERFORMANCE GREEN, EMERALD GREEN
0.5
0.7
0.9
1.2
30 60 8010
EMERALD GREEN
I
F
– FORWARD CURRENT – mA
I
F
– FORWARD CURRENT – mA
0
0
T
A
– AMBIENT TEMPERATURE – °C T
A
– AMBIENT TEMPERATURE – °C
40 80
40
20
10
20 60
30
100
5
15
25
35
DH As AlGaAs RED
Rθ
JA
= 559°C/W
Rθ
JA
= 689°C/W
NORMALIZED LUMINOUS INTENSITY
1.0
0.0
ANGULAR DISPLACEMENT – DEGREES
0.8
0.6
0.5
0.7
0.2
45
0.1
0.3
0.4
35 25 515 -5 -15 -25 -35 -45
0.9
NORMALIZED LUMINOUS INTENSITY
1.0
0.0
ANGULAR DISPLACEMENT – DEGREES
0.8
0.6
0.5
0.7
0.2
45
0.1
0.3
0.4
35 25 515 -5 -15 -25 -35 -45
0.9
0
0
40 80
40
20
10
20 60
30
100
5
15
25
35
HER, ORANGE, YELLOW, AND HIGH
PERFORMANCE GREEN, EMERALD GREEN
Rθ
JA
= 470°C/W
Rθ
JA
= 705°C/W
Rθ
JA
= 300°C/W
YELLOW
HER, ORANGE, GREEN, EMERALD GREEN
Figure 5. Maximum forward dc current vs. ambient temperature. Derating based on T
j
MAX = 110°C.
Figure 4. Relative eciency (luminous intensity per unit current) vs. peak current.
Figure 6. Relative luminous intensity vs. angular displacement.
15 degree family.
Figure 7. Relative luminous intensity vs. angular displacement.
25 degree family.
