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LED
Infrared LED
L4492
Low forward voltage LED for camera auto-focus
Features
l
High radiant output power
l
Low forward voltage: 2.4 V (I
l
High radiant output power by constant voltage drive
l
Small emission spot (reflector size)
■
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 *
* Guaranteed to resist temperature cycle test of up to 5 cycles.
F
=1.0 A)
F
R
Pulse width=10 µs
FP
Duty ratio=1 %
Applications
l
Auto-focus
80 mA
3 V
1.0 A
C
°
C
°
Electrical and optical characteristics (Ta=25 °C)
■
Parameter Symbol Condition Min. Typ. Max. Unit
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 % - 0.45 0.7 µs
Fall time tf IF=50 mA, 90 to 10 % - 0.45 0.7 µs
IF=50 mA 880 900 930 nm
p
λ
IF=50 mA - 60 - nm
∆λ
=50 mA - 1.35 1.45 V
FIF
=1.0 A - 2.4 2.8 V
FPIF
VR=3 V - - 30 µA
R
IF=50 mA 6.0 8.0 - mW
e
φ
=50 mA - 1.1 - mW/cm
EIF
2
Page 2
Infrared LED
FORWARD VOLTAGE (V)
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
FORWARD CURRENT (mA)
1.0 1.5
10
1000
100
2.0 2.5 3.0
-40 -20 0 20
(Typ.)
40 60 80 100
0
40
60
80
100
AMBIENT TEMPERATURE (˚C)
RELATIVE ALLOWABLE FORWARD CURRENT (%)
20
L4492
■ Emission spectrum ■ Radiant flux vs. forward current
100
80
60
40
20
RELATIVE RADIANT OUTPUT (%)
0
800700
WAVELENGTH (nm)
■ Directivity
20˚ 10˚ 0˚ 10˚ 20˚
30˚
40˚
50˚
60˚
70˚
80˚
90˚
RELATIVE RADIANT OUTPUT (%)
100
80 %
60 %
40 %
20 %
(Typ. Ta=25 ˚C, IF=50 mA)
900 1000
(Typ. Ta=25 ˚C)
%
KLEDB0138EB
30˚
40˚
50˚
60˚
70˚
80˚
90˚
KLEDB0199EA
1000
100
10
RADIANT FLUX (mW)
1
10
■ Radiant output vs. ambient
temperature
+3
+2
+1
0
-1
-2
-3
-4
RELATIVE RADIANT OUTPUT (dB)
-5
-40 -20
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
100 1000
FORWARD CURRENT (mA)
(Typ. IF=50 mA)
0 20406080100
AMBIENT TEMPERATURE (˚C)
■ Forward current vs. forward voltage
KLEDB0197EA
■ Allowable forward current vs.
ambient temperature
KLEDB0200EA
KLEDB0198EA
KLEDB0027EB
■ Allowable forward current vs.
■ Dimensional outline (unit: mm)
duty ratio
(Typ.
Ta=25
10
˚C)
CLEAR EPOXY RESIN
PULSE WIDTH=1 µs
1
PULSE WIDTH=10 µs
PULSE WIDTH=100 µs
0.1
ALLOWABLE FORWARD CURRENT (A)
0.01
0.01
0.1 1 10 100
0.45
LEAD
DUTY RATIO (%)
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, 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
KLEDB0038EA
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.
COMMON TO CASE
5.4 ± 0.1
4.2 ± 0.1
1.12 ± 0.1
2.54 ± 0.2
2.3 ± 0.3
13.5
KLEDA0009ED
Cat. No. KLED1030E01
Apr. 2001 DN
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