LED Infrared LED L2388 series TO-46 style GaAs infrared LED Features Applications l High radiant output power l High reliability l Optical switches l Automatic control systems 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 Value 80 5 Unit mA V 1.0 A -30 to +85 -40 to +100 * C C Pulse width=10 s Duty ratio=1 % * L2388 is 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 Condition Min. L2388 Typ. Max. Min. L2388-01 Typ. Max. Unit p IF=50 mA 920 945 970 920 945 970 nm VF VFP IR e PE tr tf IF=50 mA IF=50 mA IF=1.0 A VR=5 V IF=50 mA IF=50 mA IF=50 mA, 10 to 90 % IF=50 mA, 90 to 10 % 4.5 - 45 1.3 2.3 6.0 0.6 1.2 1.3 1.4 2.9 5 2.0 2.0 2.6 - 45 1.3 2.3 3.4 1.4 1.2 1.3 1.4 2.9 5 2.0 2.0 nm V V A mW mW/cm2 s s Infrared LED Emission spectrum Forward current vs. forward voltage (Typ. Ta=25 C, tw=100 s, 0.1 %) (Typ. Ta=25 C, IF=50 mA) 1000 60 40 FORWARD CURRENT (mA) RADIANT FLUX (mW) 80 100 L2388 10 L2388-01 1 20 0.1 900 1000 1100 1 100 10 Directivity 10 20 50 60 % L2388-01 40 50 40 % 60 60 20 % 70 Allowable forward current vs. ambient temperature (Typ.) 70 80 80 90 90 RELATIVE ALLOWABLE FORWARD CURRENT (%) RELATIVE RADIANT OUTPUT (dB) 40 L2388 +2 +1 0 -1 -2 -3 -4 -5 -40 RELATIVE RADIANT OUTPUT (%) -20 0 20 40 60 80 100 AMBIENT TEMPERATURE (C) KLEDB0123EA Allowable forward current vs. duty ratio 40 20 0 -40 -20 0 20 40 60 80 100 KLEDB0027EB L2388-01 5.4 0.2 0.45 LEAD 0.1 2.3 0.3 4.5 0.2 PULSE WIDTH=100 s 1.12 0.1 PULSE WIDTH=10 s 4.65 0.1 13.5 4.2 0.1 1 0.45 LEAD 2.54 0.2 1 60 AMBIENT TEMPERATURE (C) L2388 5.4 0.1 0.1 80 KLEDB0211EA CLEAR EPOXY RESIN 0.01 0.01 100 Dimensional outlines (unit: mm) (Typ. Ta=25 C) 10 KLEDB0210EA (Typ. IF=50 mA) 30 80 % 2.5 FORWARD VOLTAGE (V) +3 100 % 30 2.0 1.5 KLEDB0209EA Radiant output vs. ambient temperature (Typ. Ta=25 C) 0 1 1.0 1000 KLEDB0122EA 10 10 FORWARD CURRENT (mA) WAVELENGTH (nm) 20 100 10 6.65 0.2 0 800 ALLOWABLE FORWARD CURRENT (A) (Typ. Ta=25 C, tw=100 s, 0.1 %) 1000 13.5 100 RELATIVE RADIANT OUTPUT (%) Radiant flux vs. forward current L2388 series 2.54 0.2 100 DUTY RATIO (%) KLEDB0038EA COMMON TO CASE COMMON TO CASE KLEDA0009ED KLEDA0052EB 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, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, 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.: 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: 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. KLED1012E01 Apr. 2001 DN