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ASDL-4770
High Performance Side look AlGaAs/GaAs Infrared (940nm) Lamp
Data Sheet
Description
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.
Features
* 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 ASDL-4770-C ASDL-4770-C4 Lead Form Straight Color Clear Packaging Tape & Reel Bulk Shipping Option 4000pcs 0Kpcs / 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 25C
Parameter Peak Forward Current Continuous Forward Current Power Dissipation Reverse Voltage Operating Temperature Storage Temperature LED Junction Temperature Lead Soldering Temperature Symbol IFPK IFDC PDISS VR TO TS TJ -40 -55 Min. Max 50 75 5 85 00 0 60 C for 5 sec Unit A mA mW V C C C Reference 00pps
Electrical Characteristics at 25C
Parameter Forward Voltage Reverse Voltage Thermal Resistance, Junction to Ambient Symbol VF VR RqJA 5 50 Min. Typ. . Max. .6 Unit V V C/W Condition IFDC=0mA IR=00uA
Optical Characteristics at 25C
Parameter Radiant On-Axis Intensity Viewing Angle Peak wavelength Spectral Width Optical Rise Time Symbol IE / PK tr Min. 40 940 50 Typ. Max. . Unit mW/Sr deg nm nm us IFDC = 0mA IFDC = 0mA IFPK=00mA Duty Factor=50% Pulse Width=0us IFPK=00mA Duty Factor=50% Pulse Width=0us Condition IFDC=0mA
Optical Fall Time
tf
us
Typical Electrical/Optical Characteristics Curves (TA=25C unless otherwise indicated)
1.0
Relative Radiant Intensity Forward Current IF (mA)
60 50 40 30 20 10 0 -40 -20 0 20 40 60 80 100
0.5
0 840
940 Wavelength (nm)
1040
Ambient Temperature Ta ( o C)
Figure 2. FORWARD CURRENT VS. AMBIENT TEMPERATURE
Figure 1. SPECTRAL DISTRIBUTION
50
Output Power Relative To Value at IF=20mA Forward Current (mA)
1.2 1.0 0.8 0.6 0.4 0.2 0 -20 0 20 40 60
o
40 30 20 10 0 0 1.2 1.6 2.0 2.4 2.8
80
Forward Voltage (V)
Figure 3. FORWARD CURRENT VS. FORWARD VOLTAGE
Ambient Temperature Ta ( C)
Figure 4. RELATIVE RADIANT INTENSITY VS. AMBIENT TEMPERATURE
5.0
Output Power Relative To Value at IF=20mA
0
Relative Radiant Intensity
o
10
o
20
o
30 40
o
4.0 3.0 2.0 1.0 0 0 20 40 60 80 100
o
1.0 0.9 0.8 0.7
50 60 70 80 90 0.5 0.3 0.1 0.2 0.4 0.6
o
o
o o o
Foward Current (mA)
Figure 5. RELATIVE RADIANT INTENSITY VS. FORWARD CURRENT Figure 6. RADIATION DIAGRAM
For product information and a complete list of distributors, please go to our web site:
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 (c) 007 Avago Technologies Limited. All rights reserved. AV0-007EN - January , 007

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