HAMAMATSU L2388-01, L2388 Datasheet
LED
Infrared LED
L2388 series
TO-46 style GaAs infrared LED
Features
l
High radiant output power
l
High reliability
Absolute maximum ratings (Ta=25 °C)
■
Parameter Symbol Condition Value Unit
Forward current I
Reverse voltage V
Pulse forward current I
Operating temperature Topr -30 to +85
Storage temperature Tstg -40 to +100 *
* L2388 is guaranteed to resist temperature cycle test of up to 5 cycles.
F
R
Pulse width=10 µs
FP
Duty ratio=1 %
Applications
l
Optical switches
l
Automatic control systems
l
Auto-focus
80 mA
5 V
1.0 A
C
°
C
°
Electrical and optical characteristics (Ta=25 °C)
■
Parameter Symbol Condition
Peak emission
wavelength
Spectral half width
Forward voltage V
Pulse forward voltage V
Reverse current I
Radiant flux
Radiant illuminance P
Rise time tr IF=50 mA, 10 to 90 % - 1.2 2.0 - 1.2 2.0 µs
Fall time tf IF=50 mA, 90 to 10 % - 1.3 2.0 - 1.3 2.0 µs
λ
∆λ
φ
=50 mA 920 945 970 920 945 970 nm
I
F
p
IF=50 mA - 45 - - 45 - nm
=50 mA - 1.3 1.4 - 1.3 1.4 V
FIF
=1.0 A - 2.3 2.9 - 2.3 2.9 V
FPIF
VR=5 V - - 5 - - 5 µA
R
IF=50 mA 4.5 6.0 - 2.6 3.4 - mW
e
=50 mA - 0.6 - - 1.4 - mW/cm
EIF
Min. Typ. Max. Min. Typ. Max.
L2388 L2388-01
Unit
2
Infrared LED
FORWARD VOLTAGE
(V)
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
FORWARD CURRENT
(mA)
1.51.0
1
10
1000
100
2.0 2.5
L2388 series
■ Emission spectrum ■ Radiant flux vs. forward current
100
80
60
40
20
RELATIVE RADIANT OUTPUT (%)
0
800
900 11001000
WAVELENGTH (nm)
■ Directivity
20˚ 10˚ 0˚ 10˚ 20˚
30˚
40˚
50˚
60˚
70˚
80˚
90˚
RELATIVE RADIANT OUTPUT (%)
(Typ. Ta=25 ˚C, IF=50 mA)
(Typ. Ta=25 ˚C)
100 %
80
L2388
%
L2388-01
60
%
40
%
20
%
30˚
40˚
50˚
60˚
70˚
80˚
90˚
1000
100
10
RADIANT FLUX (mW)
1
0.1
KLEDB0122EA
■ Radiant output vs. ambient
temperature
+3
+2
+1
0
-1
-2
-3
-4
RELATIVE RADIANT OUTPUT (dB)
-5
KLEDB0123EA
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
L2388
L2388-01
101
100 1000
FORWARD CURRENT (mA)
(Typ. IF=50 mA)
0-20-40
20 40 60 80 100
AMBIENT TEMPERATURE (˚C)
■ Forward current vs. forward voltage
KLEDB0209EA
■ Allowable forward current vs.
ambient temperature
100
80
60
40
20
RELATIVE ALLOWABLE FORWARD CURRENT (%)
0
-40 -20 0 20
AMBIENT TEMPERATURE (˚C)
KLEDB0211EA
40 60 80 100
KLEDB0210EA
(Typ.)
KLEDB0027EB
■ Allowable forward current
■ Dimensional outlines (unit: mm)
vs. duty ratio
(Typ.
Ta=25
10
1
PULSE WIDTH=
0.1
ALLOWABLE FORWARD CURRENT (A)
0.01
0.01
10 µs
PULSE WIDTH=
0.1 1 10 100
100 µs
˚C)
DUTY RATIO (%)
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. ©2001 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://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.: 8, 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, Her tfordshire 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
➀ L2388 ➁ L2388-01
5.4 ± 0.1
0.45
LEAD
4.2 ± 0.1
2.54 ± 0.2
2.3 ± 0.3
13.5
1.12 ± 0.1
KLEDA0009ED KLEDA0052EB
KLEDB0038EA
CLEAR EPOXY RESIN
COMMON TO CASE
0.45
LEAD
COMMON TO CASE
5.4 ± 0.2
4.65 ± 0.1
2.54 ± 0.2
6.65 ± 0.213.5
4.5 ± 0.2
Cat. No. KLED1012E01
Apr. 2001 DN
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