Features
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High reliability
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High radiant output power
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High-speed response
Applications
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Optical fiber communication
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Spatial light transmission
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Optical switch
LED
Infrared LED
High power infrared LED
L3989 series
■
■ ■
■ Absolute maximum ratings (Ta=25 °C)
Parameter Symbol Condition Value Unit
Forward current IF80 mA
Reverse voltage VR3 V
Pulse forward current IFP Pulse width=10 µs
Duty ratio=1 % 0.8 A
Operating temperature Topr -30 to +85 °C
Storage temperature Tstg -40 to +100 * °C
* L3989 is guaranteed to resist temperature cycle test of up to 5 cycles.
■
■ ■
■ Electrical and optical characteristics (Ta=25 °C)
L3989 L3989-01 L3989-02
Parameter Symbol Condition Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
Peak emission wavelength
λpIF=50 mA 800 830 860 800 830 860 800 830 860 nm
Spectral half width ∆λ IF=50 mA -40 - - 40 - - 40 -nm
Forward voltage VFIF=50 mA - 1.45 1.60 - 1.45 1.60 - 1.45 1.60 V
Pulse forward voltage VFP IF=0.8 A -2.3 2.9 -2.3 2.9 -2.3 2.9 V
Reverse current IRVR=3 V - -10- -10- -10 µA
Radiant flux φeIF=50 mA 6.0 8.0 -2.5 3.6 -4.0 5.8 -mW
Radiant illuminance PEIF=50 mA - 0.9 - - 2.2 - - 0.9 - mW/cm2
Cut-off frequency fc IF=50 mA + 1 mAp-p 15 30 -15 30 -15 30 -MHz
1
Infrared LED
L3989 series
■ Emission spectrum
KLEDB0212EA
■ Radiant flux vs. forward current
KLEDB0213EA
■ Forward current vs. forward voltage
KLEDB0214EA
■ Directivity
KLEDB0215EA
■ Radiant output vs. ambient temperature
KLEDB0216EA
■ Allowable forward current vs. ambient temperature
KLEDB0027EB
WAVELENGTH (nm)
(Typ. Ta=25 ˚C, I
F
=50 mA)
RELATIVE RADIANT OUTPUT (%)
800700
0
20
100
80
60
40
900 1000
FORWARD CURRENT (mA)
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
RADIANT FLUX (mW)
101
1
10
1000
100
100 1000
L3989
L3989-02
L3989-01
FORWARD VOLTAGE (V)
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
FORWARD CURRENT (mA)
1.51.0
10
1000
100
2.0 2.5
RELATIVE RADIANT OUTPUT (%)
(Typ. Ta=25 ˚C)
80 %
60 %
20˚10˚0˚10˚20˚
90˚
80˚
50˚
40˚
30˚
70˚
60˚
90˚
80˚
50˚
40˚
30˚
70˚
60˚
100
%
40
%
20
%
L3989-02
L3989-01
L3989
AMBIENT TEMPERATURE (˚C)
(Typ. I
F
=50 mA)
RELATIVE RADIANT OUTPUT (dB)
0-20-40
-5
-4
-2
-3
-1
+3
+2
+1
0
20 40 60 80 100
-40 -20 0 20
(Typ.)
40 60 80 100
0
40
60
80
100
AMBIENT TEMPERATURE (˚C)
RELATIVE ALLOWABLE FORWARD CURRENT (%)
20
2
Infrared LED
L3989 series
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658
France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
Information furnished by HAMAMATSU is believed to be reliable . However, no responsibility is assumed for possible inaccuracies or omissions .
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2006 Hamamatsu Photonics K.K.
Cat. No. KLED1032E02
Jun. 2006 DN
■ Allowable forward current vs. duty ratio
KLEDB0289EA
4.65 ± 0.1
4.5 ± 0.2
6.65 ± 0.213.5
5.4 ± 0.2
2.54 ± 0.2
COMMON TO CASE
0.45
LEAD
5.4 ± 0.2
4.7 ± 0.1
GLASS WINDOW
4.0 ± 0.1
2.7 ± 0.2
13.5
2.54 ± 0.2
COMMON TO CASE
0.45
LEAD
1.12 ± 0.1
CLEAR EPOXY RESIN
5.4 ± 0.1
4.2 ± 0.1
0.45
LEAD
2.54 ± 0.2
2.3 ± 0.3
13.5
COMMON TO CASE
KLEDA0064EB KLEDA0068EA
■ Dimensional outlines (unit: mm)
KLEDA0067EA
➂ L3989-02➁ L3989-01➀ L3989
DUTY RATIO (%)
ALLOWABLE FORWARD CURRENT (mA)
0.01 0.1 1 10 100
10
100
1000
10000 (Typ. Ta=25 ˚C)
PULSE WIDTH=1 µs
PULSE WIDTH=100 µs
PULSE WIDTH=10 µs
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