ASDL-4770 High Performance Side look AlGaAs/GaAs Infrared (940nm) Lamp Data Sheet Description Features ASDL-4770 is a high performance Infrared emitter that utilizes AlGaAs on GaAs LED technology. It is optimized for high efficiency at emission wavelength of 940nm and is designed for applications that require high radiant intensity, low forward voltage at wide viewing angle. The emitter is encapsulated in Side Look package with spherical side view lens and is matched to ASDL-6770 for maximum sensitivity. • Side Look Package • 940nm wavelength • Low Forward Voltage • Narrow Viewing Angle • Good Mechanical and Spectral matching to ASDL-6770 Infrared Phototransistor Detector • Lead Free and ROHS Compliant • Available in Tape & Reel Applications • Industrial Infrared Monitoring Applications • Consumer Electronics (Optical Mouse) • Infrared Source for Optical Counters and Card Readers • Photo-Interrupters • On-Off Switch / Beam Interruption • Light Barriers Ordering Information Part Number Lead Form Color Packaging Shipping Option ASDL-4770-C22 ASDL-4770-C41 Straight Clear Tape & Reel Bulk 4000pcs 20Kpcs / Carton Package Dimensions Notes: 1. All dimensions are in millimeters (inches) 2. Tolerance is + 0.25mm (.010”) unless otherwise noted 3. Protruded resin under flange is 1.0mm (.039”) max 4. Lead spacing is measured where leads emerge from package 5. Specifications are subject to change without notice Absolute Maximum Ratings at 25°C Parameter Symbol Peak Forward Current Continuous Forward Current Min. Max Unit Reference IFPK 1 A 300pps IFDC 50 mA Power Dissipation PDISS 75 mW Reverse Voltage VR 5 V Operating Temperature TO -40 85 °C Storage Temperature TS -55 100 °C LED Junction Temperature TJ 110 °C 260 °C for 5 sec Lead Soldering Temperature Electrical Characteristics at 25°C Parameter Symbol Forward Voltage VF Reverse Voltage VR Thermal Resistance, Junction to Ambient RqJA Min. Typ. Max. Unit Condition 1.2 1.6 V IFDC=20mA V IR=100uA 5 °C/W 350 Optical Characteristics at 25°C Parameter Symbol Min. Typ. Max. Unit Condition Radiant On-Axis Intensity IE 1 2.2 mW/Sr IFDC=20mA Viewing Angle 2θ1/2 40 deg Peak wavelength λPK 940 nm IFDC = 20mA Spectral Width Δλ 50 nm IFDC = 20mA Optical Rise Time tr 1 us IFPK=100mA Duty Factor=50% Pulse Width=10us Optical Fall Time tf 1 us IFPK=100mA Duty Factor=50% Pulse Width=10us Typical Electrical/Optical Characteristics Curves (TA=25˚C unless otherwise indicated) 60 Forward Current IF (mA) Relative Radiant Intensity 1.0 0.5 0 840 940 50 40 30 20 10 0 1040 -40 -20 0 Wavelength (nm) Ambient Temperature Ta ( o C) Figure 1. SPECTRAL DISTRIBUTION Figure 2. FORWARD CURRENT VS. AMBIENT TEMPERATURE 1.2 Output Power Relative To Value at IF=20mA Forward Current (mA) 50 40 30 20 10 0 0 1.2 1.6 2.0 2.4 1.0 0.8 0.6 0.4 0.2 0 2.8 -20 20 0 Relative Radiant Intensity 4.0 3.0 2.0 1.0 20 40 60 80 60 80 Figure 4. RELATIVE RADIANT INTENSITY VS. AMBIENT TEMPERATURE 5.0 0 40 o Figure 3. FORWARD CURRENT VS. FORWARD VOLTAGE Output Power Relative To Value at IF=20mA 0 Ambient Temperature Ta ( C) Forward Voltage (V) 0 20 40 60 80 100 100 o For product information and a complete list of distributors, please go to our web site: o 20 o 30 o 40 o 1.0 0.9 50 o 0.8 60 o 0.7 70 80 90 o 0.5 0.3 0.1 Foward Current (mA) Figure 5. RELATIVE RADIANT INTENSITY VS. FORWARD CURRENT 10 Figure 6. RADIATION DIAGRAM www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries. Data subject to change. Copyright © 2007 Avago Technologies Limited. All rights reserved. AV02-0017EN - January 22, 2007 0.2 0.4 0.6 o o