HDSP-4820 Hewlett-Packard, HDSP-4820 Datasheet - Page 5

• Manufacturer Part Number: HDSP-4820
• Description: (HDSP-48xx) 10-Element Bar Graph Array
• Manufacturer: Hewlett-Packard

Red, AlGaAs Red
Figure 1. Maximum Tolerable Peak Current vs. Pulse
Duration – Red.
Figure 6. Relative Luminous Intensity
vs. DC Forward Current – Red.
Figure 3. Maximum Allowable DC
Current vs. Ambient Temperature.
T
T
JMAX
JMAX
For a Detailed Explanation on the Use of Data Sheet Information and Recommended Soldering Procedures,
See Application Note 1005.
1.4
1.2
1.0
0.8
0.6
0.4
0.2
I
F
12.5
40
35
30
25
20
15
10
= 100 C for Red and
= 110 C for AlGaAs Red.
0
1.5
5
0
20
15
10
25
– FORWARD CURRENT PER SEGMENT – mA
0
8
6
5
4
3
2
1
1
AlGaAs RED
RED
T
35
A
– AMBIENT TEMPERATURE – °C
t
5
P
45
10
– PULSE DURATION – µSEC
55
10
65
100
15
R
75
J-A
85
1000
= 600°C/W
20
95
10000
25
105
OPERATION IN THIS
REGION REQUIRES
TEMPERATURE
DERATING OF I
Figure 7. Relative Luminous Intensity
vs. DC Forward Current – AlGaAs.
Figure 4. Relative Efficiency
(Luminous Intensity per Unit
Current) vs. Peak Current.
DC OPERATION
0.1
20
10
1.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1.1
5
2
1
0.1
I F – FORWARD CURRENT PER SEGMENT
0
I
PEAK
AlGaAs RED
DC
0.2
20
MAX
– PEAK SEGMENT CURRENT – mA
40
0.5
60
1
RED
80
100
Figure 2. Maximum Tolerable Peak Current vs. Pulse
Duration – AlGaAs Red.
120
5
10
9
8
7
6
5
4
3
2
1
140
10
1
20
160
t
P
10
– PULSE DURATION – µs
5
Figure 5. Forward Current vs.
Forward Voltage.
160
140
120
100
80
60
40
20
0
0
100
0.5
V
F
1.0
– FORWARD VOLTAGE – V
1000
RED
1.5
10000
2.0
AlGaAs RED
OPERATION IN THIS
REGION REQUIRES
TEMPERATURE
DERATING OF I
2.5
DC OPERATION
3.0
3.5
DC
4.0
MAX