LED
Infrared LED
L3989 series
High power infrared LED
Features
Applications
l
High reliability
l
High radiant output power
l
High-speed response
l
Optical fiber communication
l
Spatial light transmission
l
Optical switch
s
Absolute maximum ratings (Ta=25
°C)
Parameter
Forward current
Reverse voltage
Pulse forward current
Symbol
I
F
V
R
I
FP
Condition
Value
80
3
0.8
-30 to +85
-40 to +100 *
Unit
mA
V
A
°C
°C
Pulse width=10 µs
Duty ratio=1 %
Operating temperature
Topr
Storage temperature
Tstg
* L3989 is guaranteed to resist temperature cycle test of up to 5 cycles.
s
Electrical and optical characteristics (Ta=25
°C)
Parameter
P ea k e m issio n w avele ng th
Spectral half width
Forward voltage
Pulse forward voltage
Reverse current
Radiant flux
Radiant illuminance
Cut-off frequency
Symbol
λp
∆λ
V
F
V
FP
I
R
φe
P
E
fc
Min.
800
I
F
=50 mA
I
F
=50 mA
-
I
F
=50 mA
-
I
F
=0.8 A
-
V
R
=3 V
-
I
F
=50 mA
6.0
I
F
=50 mA
-
I
F
=50 mA + 1 mAp-p 15
Condition
L3989
Typ.
830
40
1.45
2.3
-
8.0
0.9
30
L3989-01
L3989-02
Unit
Max. Min. Typ. Max. Min. Typ. Max.
860 800 830 860 800 830 860
nm
-
-
40
-
-
40
-
nm
1.60
-
1.45 1.60
-
1.45 1.60
V
2.9
-
2.3
2.9
-
2.3
2.9
V
10
-
-
10
-
-
10
µA
-
2.5
3.6
-
4.0
5.8
-
mW
-
-
2.2
-
-
0.9
-
mW/cm
2
-
15
30
-
15
30
-
MHz
1
HAMAMATSU [ HAMAMATSU CORPORATION ]
