
7
Figure 5. Maximum forward dc current vs. ambient temperature. Derating based on T
j
MAX = 110
°
C.
Figure 4. Relative efficiency (luminous intensity per unit current) vs. peak current.
Figure 6. Relative luminous intensity vs. angular displacement. 15 degree family.
(
0
I
PEAK
–
PEAK FORWARD CURRENT
–
mA
0
0.6
0.8
300
20
100
1.2
1.0
0.2
0.4
50
200
10
DH As AlGaAs RED
η
P
–
(
0
I
PEAK
–
PEAK FORWARD CURRENT
–
mA
0.4
0.6
0.8
1.0
90
20
70
50
40
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
80
10
EMERALD GREEN
I
F
–
–
0
0
T
A
–
AMBIENT TEMPERATURE
–
°
C
40
80
40
20
10
20
60
30
100
5
15
25
35
DH As AlGaAs RED
R
θ
J A
= 559
°
C/W
R
θ
J A
= 689
°
C/W
I
F
–
–
0
0
T
A
–
AMBIENT TEMPERATURE
–
°
C
40
80
40
20
10
20
60
30
100
5
15
25
35
HER, ORANGE, YELLOW, AND HIGH
PERFORMANCE GREEN, EMERALD GREEN
R
θ
J A
= 470
°
C/W
R
θ
J A
= 300
°
C/W
R
θ
J A
= 705
°
C/W
YELLOW
HER, ORANGE, GREEN,
EMERALD GREEN
N
1
0
ANGULAR DISPLACEMENT
–
DEGREES
0.8
0.6
0.5
0.7
0.2
45
0.1
0.3
0.4
40
35
30
25
20
10
5
0
15
-5 -10 -15 -20 -25 -30 -35 -40 -45
0.9