HSDL-4250 and HSDL-4251 High-Performance T-1 ¾ (5mm) AlGaAs Infrared (870nm) Lamp Datasheet Description Features The HSDL-4250 and HSDL-4251 High Performance Infrared emitters were designed for applications that require high power, low forward voltage and high speed. It utilizes Aluminum Galium Arsenide (AlGaAs) LED technology and is optimized for speed and efficiency at emission wavelengths of 870nm. The material used produces high radiant efficiency over a wide range of currents. The emitter is packaged in clear T-1¾ (5mm) package. • High Power AlGaAs LED Technology • 870nm Wavelength • T-1¾ Package • Low Cost • Low Forward Voltage: 1.4V at 20mA • High Speed: 40ns Rise Time Applications • Industrial Infrared Equipments and applications • Portable Infrared Instruments 5.0 ± 0.2 • Consumer Electronics (Optical mouse, Infrared Remote Controllers etc) 8.7 ± 0.2 1.14 ± 0.2 • High Speed Infrared Communications (IR LANs, IR Modems, IR Dongles etc) 31.6 min. 5.8 ± 0.2 0.7 max. 2.54 1.0 min. CATHODE FLAT 0.50 ± 0.1 Part Number Lead Form Shipping Option HSDL-4250 Straight Bulk HSDL-4251 Straight Bulk Absolute Maximum Ratings at 25°°C Parameter Symbol Minimum Maximum Unit Reference Peak Forward Current IFPK - 500 mA Figure 3 Duty cycle = 20% Pulse Width = 100us Forward Current IFDC - 100 mA [1] Power Dissipation PDISS - 190 mW Reverse Voltage VR 5 - V Storage Temperature TS -40 100 °C LED Junction Temperature TJ 110 °C 260 for 5 sec °C Lead Soldering Temperature IR=100uA Notes: 1. Derate as shown in Figure 6. Recommended Operating Conditions Parameter Symbol Min Max Unit Operating Temperature TO -40 85 °C Reference Electrical Characteristics at 25°° C Parameter Symbol Min. Typ. Max. Unit Condition Reference Forward Voltage VF - 1.4 1.5 1.6 1.9 V IFDC=20mA IFDC=100mA Figure 2 Figure 3 Forward Voltage Temperature Coefficient ∆V/∆T - -1.44 - mV/°C IFDC=100mA Figure 4 Series Resistance RS - 2.5 - Ohms IFDC=100mA Diode Capacitance CO - 75 - pF Vbias=0V, f=1MHz Thermal Resistance, Junction to Ambient Rθja - 300 - °C/W 2 Optical Characteristics at 25°°C Parameter Symbol Radiant On-Axis Intensity IE Radiant On-Axis Intensity Temperature Coefficient ∆IE/∆T Viewing Angle 2θ1/2 Min. Typ. Max. Unit Condition Reference HSDL-4250 124 180 - mW/Sr IFDC=100mA Figure 5 HSDL-4251 56 100 - mW/Sr IFDC=100mA - -0.43 - %/°C IFDC=100mA HSDL-4250 - 15 - ° Figure 7 HSDL-4251 - 30 - ° Figure 7 - 870 - nm Figure 1 - 0.22 - nm/°C IFDC=100mA λpk Peak Wavelength Peak wavelength Temperature Coefficient ∆λ/∆T Spectral Width ∆λ 45 - nm IFDC=50mA Optical Rise and Fall Time tr/tf 40 - ns IFDC=500mA Duty Ratio = 20% Pulse Width=125ns Peak Wavelength Vs Relative Radiant Intensity V-I Characteristics 1.2 If - Forward Current - (mA) 100 Relative Radiant Intensity 1 0.8 0.6 0.4 0.2 0 800 10 1 820 840 860 880 900 920 940 0 0.5 Peak Wavelength in nm Figure 1. Relative Radiant Intensity vs. Wavelength Peak Forward Voltage Vs Peak Forward Current 2 Forward Voltage Vs Temperature 1.8 1.7 Forward Voltage in Volts Ifpk - Peak Forward Current - (mA) 1 1.5 Vf - Forward Voltage - (V) Figure 2. DC Forward Current vs. Forward Voltage 1000 100 10 1.6 1.5 1.4 1.3 1.2 I-Led=20mA I-Led=100mA 1.1 1 1 0 0.5 1 1.5 Vfpk - Peak Forward Voltage - (V) Figure 3. Peak Forward Current vs. Forward Voltage 3 Figure 1 2 -25 0 25 50 75 Temperature in Degrees Figure 4. Forward Voltage vs. Ambient Temperature 100 125 Forward Current Vs Relative Radiant Intensity Maximum Permisible DC forward current vs. ambient temperature 110 300 100 90 80 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 TA- Ambient Temperature -˚C IFDC MAX - Maximum DC Forward Current mA Relative Radiant Intensity 1.2 1 0.8 0.6 0.4 0.2 0 0 20 40 60 80 Forward Current in mA 100 120 Figure 5. Relative Radiant Intensity vs. DC Forward Current Figure 6. DC Forward Current vs. Ambient Temperature Derated Based on TJMAX=110°° C 4251-Angle Vs Relative Radiant Intensity 1.2 1 0.8 0.6 0.4 0.2 0 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Angle in degrees Figure 7a. Radiant Intensity vs. Angular Displacement for HSDL-4250 Relative Radiant Intensity Relative Radiant Intensity 4250-Angle Vs Relative Radiant Intensity 1.2 0.8 0.6 0.4 0.2 0 -100 -90 -80 -70 -60 -50-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 Angle in Degrees Figure 7b. Radiant Intensity vs. Angular Displacement for HSDL-4251 For company and product information, please go to our web site: WWW.liteon.com or http://optodatabook.liteon.com/databook/databook.aspx Data subject to change. Copyright © 2007 Lite-On Technology Corporation. All rights reserved. 4 1