AEDS-9300

AEDS-9300 Datasheet

AEDS-9300 Transmissive Photointerrupter

Part	Datasheet
AEDS-9300	AEDS-9300 (pdf)

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AEDS-9300 Transmissive Photointerrupter Data Sheet The photointerrupter consists of a Gallium Arsenide infrared light emitting diode and a NPN silicon phototransistor built in a black plastic housing. It is a transmissive subminiature photointerrupter. Input Output RL Figure 1 Illustrates Basic Configuration of Photointerrupter • Non-Contact Sensing • Infra-Red Wavelength • Fast Switching Speed • Mounting Guide Pins • RoHS Compliant • -25 °C to +85 °C Operating Temp. • Optical Switch • ATM Machines • Vending Machines • Edge, Position Detections • Office Automation Equipments Theory of Operation The photo-interrupter consists of an Infrared light source and a photo-diode in a single Dual-in-Line package. The photo-interrupter could be mounted onto a PC board with a current-limiting resistor in series externally with the Infrared Emitting Diode. With this, such input voltage for the emitting diode could share the same voltage level as VCC. Regarding the photo-interrupter output, there will always be current output measured but with the external resistor, RL connected as shown in Figure1, analog voltage output could then be obtained. Sensing Position Characteristics Typical I F =20mA V CE =5V Ta=25 o C I F =20mA V CE =5V Ta=25 o C Relative Light Current IL % 0 -3 -2 -1 0 1 2 3 -3 -2 -1 0 1 2 3 Distance d mm X-Direction With both the infrared light source and the photo diode in a single package, the photo-interrupter employs transmissive technology to sense obstacles existence, acts as on / off switchers or even to sense lowresolution rotary or linear motions. The photointerrupter is specified for operation over -25 °C to +85 ºC temperature range. As a basic switcher, the photo-interrupter would have a position detecting characteristics as shown in Figure These characteristic diagrams give the relationship between Relative Light Current, IL and Distance of displacement, d. Note that the slot obstacle introduced in between the emitting diode and the photo-diode could applied in two directions. One is of X-axis and another would be of Y-axis. Therefore, with the presence of slot, the photointerrupter would actually give a low logic output. Vice versa, the photo-interrupter will provide a high logic output without the existence of the slot. Refer to Figure Typically, Rise Time, tr and Fall Time tf will have the same value, 15µs. With special design of the slots, periodic presence and absence could be generated. Such output signal is useful in determining low-resolution >0.5mm pitch motor rotation positioning and motor spinning speed. Input Output 90 % 10 % Figure 3 Response Time Measurement of Output Signal. Output Y-Direction Figure 4 Periodical Output signal could be used to determine the Motor Spinning Speed and Rotation positioning. Figure 2 Illustrates Photo-Interrupter Positioning Sensing Characteristics. Obstacles Slots could interrupt along X-axis or Y-axis Absolute Maximum Ratings TA=25°C Maximum Rating 5 50 1 30 5 175 -25°C to 85°C -40°C to 85°C 260°C for 5 seconds Unit V mA A V mW 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 VF IC VCEO VECO ICEO VCE SAT Tr Tf V IF=20mA 10 mA IF=20mA, Vce = 5V Ie=0.1mA, Ee=0mW/cm2 Ie=0.1mA, Ee=0mW/cm2 100 nA VCE=10V, Ee=0mW/cm2

PDF Datasheet Preview

AEDS-9300 Transmissive Photointerrupter

Data Sheet

The photointerrupter consists of a Gallium Arsenide infrared light emitting diode and a NPN silicon phototransistor built in a black plastic housing. It is a transmissive subminiature photointerrupter.

Input

Output RL

Figure 1 Illustrates Basic Configuration of Photointerrupter
• Non-Contact Sensing
• Infra-Red Wavelength
• Fast Switching Speed
• Mounting Guide Pins
• RoHS Compliant
• -25 °C to +85 °C Operating Temp.
• Optical Switch
• ATM Machines
• Vending Machines
• Edge, Position Detections
• Office Automation Equipments

Theory of Operation

The photo-interrupter consists of an Infrared light source and a photo-diode in a single Dual-in-Line package. The photo-interrupter could be mounted onto a PC board with a current-limiting resistor in series externally with the Infrared Emitting Diode. With this, such input voltage for the emitting diode could share the same voltage level as VCC.

Regarding the photo-interrupter output, there will always be current output measured but with the external resistor, RL connected as shown in Figure1, analog voltage output could then be obtained.

Sensing Position Characteristics

Typical

I F =20mA V CE =5V Ta=25 o C

I F =20mA V CE =5V Ta=25 o C

Relative Light Current IL %
0 -3 -2 -1 0 1 2 3 -3 -2 -1 0 1 2 3 Distance d mm

X-Direction

With both the infrared light source and the photo diode in a single package, the photo-interrupter employs transmissive technology to sense obstacles existence, acts as on / off switchers or even to sense lowresolution rotary or linear motions. The photointerrupter is specified for operation over -25 °C to +85 ºC temperature range.

As a basic switcher, the photo-interrupter would have a position detecting characteristics as shown in Figure These characteristic diagrams give the relationship between Relative Light Current, IL and Distance of displacement, d. Note that the slot obstacle introduced in between the emitting diode and the photo-diode could applied in two directions. One is of X-axis and another would be of Y-axis.

Therefore, with the presence of slot, the photointerrupter would actually give a low logic output. Vice versa, the photo-interrupter will provide a high logic output without the existence of the slot. Refer to Figure Typically, Rise Time, tr and Fall Time tf will have the same value, 15µs.

With special design of the slots, periodic presence and absence could be generated. Such output signal is useful in determining low-resolution >0.5mm pitch motor rotation positioning and motor spinning speed.

Input Output
90 % 10 %

Figure 3 Response Time Measurement of Output Signal.

Output

Y-Direction

Figure 4 Periodical Output signal could be used to determine the Motor Spinning Speed and Rotation positioning.

Figure 2 Illustrates Photo-Interrupter Positioning Sensing Characteristics. Obstacles Slots could interrupt along X-axis or Y-axis

Absolute Maximum Ratings TA=25°C

Maximum Rating 5 50 1 30 5 175 -25°C to 85°C -40°C to 85°C 260°C for 5 seconds

Unit V mA A V mW

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

VF IC VCEO VECO ICEO VCE SAT Tr Tf

V IF=20mA
10 mA IF=20mA, Vce = 5V

Ie=0.1mA, Ee=0mW/cm2

Ie=0.1mA, Ee=0mW/cm2
100 nA VCE=10V, Ee=0mW/cm2

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Datasheet ID: AEDS-9300 520025