Transmissive Photointerrupter photointerrupter consists Gallium A

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Transmissive Photointerrupter photointerrupter consists Gallium A

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AEDS-9300
Transmissive Photointerrupter
photointerrupter consists Gallium Arsenide infrared light emitting diode silicon phototransistor built black plastic housing. transmissive subminiature photointerrupter.
Features
Non-Contact Sensing Infra-Red Wavelength Fast Switching Speed Mounting Guide Pins RoHS Compliant Operating Temp.
Input
Output
Applications
Optical Switch AMachines Vending Machines Edge, Position Detections Office Automation Equipments
Figure Illustrates Basic Configuration Photointerrupter
Theory Operation
photo-interrupter consists Infrared light source photo-diode single Dual-in-Line package. photo-interrupter could mounted onto board with current-limiting resistor series externally with Infrared Emitting Diode. With this, such input voltage emitting diode could share same voltage level VCC. Regarding photo-interrupter output, there will always current output measured with external resistor, connected shown Figure1, analog voltage output could then obtained.
Sensing Position Characteristics (Typical)
Relative Light Current
=20mA
With both infrared light source photo diode single package, photo-interrupter employs transmissive technology sense obstacles existence, acts switchers even sense lowresolution rotary linear motions. photointerrupter specified operation over temperature range. basic switcher, photo-interrupter would have position detecting characteristics shown Figure These characteristic diagrams give relationship between Relative Light Current, Distance displacement, Note that slot (obstacle) introduced between emitting diode photo-diode could applied directions. X-axis another would Y-axis. Therefore, with presence slot, photointerrupter would actually give logic output. Vice versa, photo-interrupter will provide high logic output without existence slot. Refer Figure Typically, Rise Time, Fall Time will have same value, 15µs. With special design slots, periodic presence absence could generated. Such output signal useful determining low-resolution (>0.5mm pitch) motor rotation positioning motor spinning speed.
=20mA Ta=25 Ta=25
Input Output
Distance (mm)
X-Direction
Figure Response Time Measurement Output Signal.
Output
Figure Periodical Output signal could used determine Motor Spinning Speed Rotation positioning.
Y-Direction
Figure Illustrates Photo-Interrupter Positioning Sensing Characteristics. Obstacles (Slots) could interrupt along X-axis Y-axis
Absolute Maximum Ratings TA=25°C
Parameter
Reverse voltage Forward current Forward surge current (10µs pulse) Collector Emitter voltage Emitter Collector voltage Power dissipation Operation temperature range Storage temperature range Soldering temperature
Maximum Rating
-25°C 85°C -40°C 85°C 260°C seconds
Unit
Optical-Electrical Characteristics TA=25°C
Parameter
Forward voltage Collector Current Collector Emitter voltage Emitter Collector voltage Collector dark current Collector Emitter saturation voltage Rising time Falling time
Symbol Min. Typ. Max. Unit Test Conditions
VCEO VECO ICEO VCE(SAT) 1.35 IF=20mA IF=20mA, Ie=0.1mA, Ee=0mW/cm2 Ie=0.1mA, Ee=0mW/cm2 VCE=10V, Ee=0mW/cm2 Ie=0.5mA, Ee=0.1mW/cm2 VCE=5V, RL=1k, IC=1mA
Outline Drawing
Units
Typical Optical-Electrical Curves
ICEO-Collector Dark Current-µA
IC-Normalized Collector Current
1000 0.01 0.001 Ambient Temperature
=0.1 mW/cm
Ambient Temperature
Figure Normalized Collector Current Ambient Temperature
Figure Collector Dark Current Ambient Temperature
Rise Fall Time
Relative Collector Current
Load Resistance
Irradiance mW/cm
Figure Rise Fall Times Load Resistance
Figure Relative Collector Current Irradiance
Forward Current (mA)
Forward Voltage
Figure Forward Current Forward Voltage
product information complete list distributors, please site:
www.avagotech.com
Avago, Avago Technologies, logo trademarks Avago Technologies, Limited United States other countries. Data subject change. Copyright 2006 Avago Technologies Pte. rights reserved. AV01-0363EN August 2006

Transmissive Photointerrupter photointerrupter consists Gallium A

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