LED Infrared LED L4492 Low forward voltage LED for camera auto-focus Features Applications l High radiant output power l Low forward voltage: 2.4 V (IF=1.0 A) l High radiant output power by constant voltage drive l Small emission spot (reflector size) l Auto-focus Absolute maximum ratings (Ta=25 C) Parameter Forward current Reverse voltage Symbol IF VR Pulse forward current IFP Operating temperature Storage temperature Topr Tstg Condition Pulse width=10 s Duty ratio=1 % Value 80 3 Unit mA V 1.0 A -30 to +85 -40 to +100 * C C * Guaranteed to resist temperature cycle test of up to 5 cycles. Electrical and optical characteristics (Ta=25 C) Parameter Peak emission wavelength Spectral half width Forward voltage Pulse forward voltage Reverse current Radiant flux Radiant illuminance Rise time Fall time Symbol p VF VFP IR e PE tr tf Condition IF=50 mA IF=50 mA IF=50 mA IF=1.0 A VR=3 V IF=50 mA IF=50 mA IF=50 mA, 10 to 90 % IF=50 mA, 90 to 10 % Min. 880 6.0 - Typ. 900 60 1.35 2.4 8.0 1.1 0.45 0.45 Max. 930 1.45 2.8 30 0.7 0.7 Unit nm nm V V A mW mW/cm2 s s Infrared LED Emission spectrum Radiant flux vs. forward current 80 60 40 100 10 20 900 800 1 10 1000 100 WAVELENGTH (nm) FORWARD VOLTAGE (V) 30 30 60 % 50 40 50 40 % 60 60 20 % 70 70 80 80 90 90 (Typ.) +2 +1 0 -1 -2 -3 -4 -5 -40 -20 0 20 40 60 80 100 100 KLEDB0199EA Allowable forward current vs. duty ratio 60 40 20 0 -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (C) KLEDB0200EA KLEDB0027EB Dimensional outline (unit: mm) (Typ. Ta=25 C) 10 80 -40 AMBIENT TEMPERATURE (C) RELATIVE RADIANT OUTPUT (%) 5.4 0.1 CLEAR EPOXY RESIN 4.2 0.1 PULSE WIDTH=1 s PULSE WIDTH=10 s 0.45 LEAD PULSE WIDTH=100 s 13.5 1 1.12 0.1 ALLOWABLE FORWARD CURRENT (A) Allowable forward current vs. ambient temperature +3 80 % 40 KLEDB0198EA RELATIVE ALLOWABLE FORWARD CURRENT (%) 100 % 3.0 (Typ. IF=50 mA) 20 RELATIVE RADIANT OUTPUT (dB) 10 2.5 KLEDB0197EA Radiant output vs. ambient temperature (Typ. Ta=25 C) 0 2.0 1.5 FORWARD CURRENT (mA) Directivity 10 10 1.0 1000 KLEDB0138EB 20 100 2.3 0.3 0 700 (Typ. Ta=25 C, tw=100 s, 0.1 %) 1000 FORWARD CURRENT (mA) 1000 RADIANT FLUX (mW) RELATIVE RADIANT OUTPUT (%) Forward current vs. forward voltage (Typ. Ta=25 C, tw=100 s, 0.1 %) (Typ. Ta=25 C, IF=50 mA) 100 L4492 0.1 2.54 0.2 0.01 0.01 0.1 1 10 100 DUTY RATIO (%) KLEDB0038EA COMMON TO CASE KLEDA0009ED 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. (c)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, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvagen 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 Cat. No. KLED1030E01 Apr. 2001 DN