7
AlGaAs Red
I
F
PEAK RATIO OF MAXIMUM OPERATING
PEAK CURRENT TO TEMPERATURE
I
DC
MAX
DERATED MAXIMUM DC CURRENT
100
OPERATION IN THIS
REGION REQUIRES
TEMPERATURE
OPERATING OF I
DC
MAXIMUM
10
z
0H
10
z
0H
30
1K
10
KH
Z
Hz
3K
Hz
1
1
10
100
1000
10000
DC OPERATION
t
P
– PULSE DURATION – µs
Figure 1. Maximum Allowed Peak Current vs.
Pulse Duration – AlGaAs Red.
I
F
– FORWARD CURRENT PER SEGMENT – mA
50
I
DC
MAX. – MAXIMUM DC CURRENT
PER SEGMENT – mA
160
140
120
AlGaAs RED
100
80
60
40
20
0
45
40
35
30
25
20
15
10
5
0
20 30
40
50 60
AlGaAs RED
Rθ
J-A
= 770°C/W
70 80
90 100 110 120
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
T
A
– AMBIENT TEMPERATURE – °C
V
F
– FORWARD CURRENT – V
Figure 2. Maximum Allowable DC
Current per Segment as a Function of
Ambient Temperature.
Figure 3. Forward Current vs.
Forward Voltage.
2.00
RELATIVE LUMINOUS INTENSITY
(NORMALIZED TO 1 AT 20 mA)
η
PEAK
– NORMALIZED RELATIVE EFFICIENCY
1.4
1.75
AlGaAs RED
1.50
1.25
1.00
0.75
0.50
0.25
0
1.2
1.0
AlGaAs RED
0.8
0
5
10
15
20
25
30
35
40
0.6
0.5
5.0
50.0
150.0
I
F
– FORWARD CURRENT PER SEGMENT – mA
I
PEAK
– PEAK FORWARD CURRENT PER SEGMENT – mA
Figure 4. Relative Luminous Intensity
vs. DC Forward Current.
Figure 5. Relative Efficiency (Luminous
Intensity per Unit Current) vs. Peak Current.
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
