LED55C View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
MFG CO.
'LED55C' PDF : 4 Pages View PDF
GaAs INFRARED EMITTING DIODE
LED55B LED55C LED56
TYPICAL PERFORMANCE CURVES
Figure 1. Power Output vs. Input Current
100
50
20
PULSED
10
PW = 80 µsec
FORWARD
5
CURRENT
2
CONTINUOUS
FORWARD
1.0
CURRENT
0.5
0.2
NORMALIZED TO
IF = 100 mA
0.1
TA = 25°C
0.05
0.02
0.01
.001 .002
.005 .01 .02
.05 0.1 0.2
0.5 1.0 2
IF, FORWARD CURRENT (A)
5 10
Figure 2. Power Output vs. Temperature
1.4
1.2
1.0
0.8
0.6
NORMALIZED TO
0.4
IF = 100 mA
TA = 25°C
0.2
0
-50 -25 0 25 50 75 100 125 150
TA, AMBIENT TEMPERATURE (°C)
Figure 3. Forward Voltage vs. Forward Current
10
8.0
6.0
4.0
2.0
1.0
0.8
0.6
0.4
0.2
0.1
.08
.06
.04
.02
.01
0
1
2
3
4
5
6
7
8
9
10
VF, FORWARD VOLTAGE (V)
Figure 4. Forward Voltage vs. Forward Current
100
80
60
40
Figure 5. Typical Radiation Pattern
100
80
20
TA = 100°C
25°C
-55°C
60
10
8
6
40
4
20
2
1
.9
DS300312 6/05/01
1.0
1.1
1.2
1.3
1.4
VF, FORWARD VOLTAGE (V)
0
1.5
-50 -40 -30 -20 -10 0 10 20 30 40 50
θ - ANGULAR DISPLACEMENT FROM OPTICAL AXIS (DEGREES)
3 OF 4
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