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E2P0054-37-X2 PHOTOSENSOR UNITS
This version: Jan. 1998 Previous version: May. 1997 OC808
electronic components OC808
Reflector-Type Photo Interrupter
GENERAL DESCRIPTION
The OC808 is a reflector-type photo interrupter that contains a high-output infrared light emitting diode and high-sensitivity phototransistor.
FEATURES
* High output * Compact, capable of reading 0.5 mm bar codes * Outstanding durability and high reliability
APPLICATIONS
* * * * Bar code reader Photoswitch Position detector Paper edge sensor
PIN CONFIGURATION
(Unit: mm)
16.0
11.9min.
2.54 q LED 0.45
w
e
14.0
45
Phototransistor
2-M2.5 10.0 (valid 4.5)
7.0
4.0
11.0 20.0 * Pin Connection Diagram q
r
w
e
1: Anode 2: Cathode 3: Emitter 4: Collector
19 .
0. 45
5m
in
.
2. 54
r
1/6
PHOTOSENSOR UNITS
OC808
ABSOLUTE MAXIMUM RATINGS
Parameter Foward Current Input Pulse Forward Current *1 Reverse Voltage Power Dissipation Collector-emitter Voltage Output Emitter-collector Voltage Power Dissipation Operating Temperature Storage Temperature *1 Pulse width tw=100 ms, cycle T=10 ms Symbol IF IFRM VR PD VCEO VECO PC Topr Tstg -- -- Ta=25C Test Condition Rating 100 1 6 200 20 5 150 -20 to +65 -20 to +85 Unit mA A V mW V V mW C C
* Wavelength at Peak Emission/Sensitivity Light source : 910 nm Photodetector : 800 nm
ELECTRICAL CHARACTERISTICS
Parameter Input Output Coupled Foward Voltage Reverse Current Dark Current Photocurrent S/N Photocurrent Symbol VF IR ID IP -- IP Min. -- -- -- 8.0 2.5 10.0 Typ. 1.55 -- -- -- -- -- Max. 2.0 10 100 80 -- 100
(Ambient Temperature Ta=25C) Unit V mA nA mA -- mA Test Condition IF=100 mA VR=6 V VCE=9 V *1 *2
*1 IF=50 mA, VCC=10 V, RL=10 kW; distance between paper surface and sensor g=1.0 mm Facsimile chart 0.5mm bar code *2 IF=50 mA, VCC=10 V, RL=10 kW; distance between paper surface and sensor g=1.0 mm White area of facsimile chart
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PHOTOSENSOR UNITS
OC808
TYPICAL CHARACTERISTICS
* Output Current vs. Paper Surface-Sensor Spacing (Ta=25C)
IF=50 mA VCC=10 V RL=10 kW Facsimile chart White area
1.0
Relative Output Current
Conditions
0.8 0.6 0.4 0.2 0 0.5 1.0 1.5 2.0 2.5
3.0
3.5
4.0
Paper Surface-Sensor Distance g (mm)
* Output Current vs. Paper Surface-Sensor Spacing
60 White Area 50
Output Current IP (mA)
Conditions 40 30 20 10 Black Area 0 0.5 1.0 1.5 2.0
IF=50 mA VCC=10 V RL=10 kW Facsimile chart White area and Black area
2.5
3.0
3.5
4.0
Paper Surface-Sensor Distance g (mm)
3/6
PHOTOSENSOR UNITS * Output Current vs. Forward Current (Ta=25C)
100
OC808
Output Current IP (mA)
10
1.0
0.1
Conditions VCC=10 V RL=10 kW Distance between paper surface and sensor g=1.0 mm White area of facsimile chart 1 10 Foward Current IF (mA) 100
* Switching Time vs. Load Resistance (Ta=25C)
Switching Time tON, tOFF (ms)
Conditions IF=50 mA VCC=10 V Pulse width 500 ms Duty R : 10 % Distance between paper surface and sensor g=1.0 mm White area of facsimile chart
100
tON tOFF
Input Pulse 90% 10% 90% 10%
10
tON 103 Load Resistance RL (W) 104 Output Pulse
tOFF
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PHOTOSENSOR UNITS * Bar Code (0.5mm) Output Current vs. Travel length (Ta=25C)
OC808
60
Output Current IP (mA)
50 40 30 20 10 0 1.0 Travel Length L (mm) 2.0 Conditions IF=50 mA VCC=10 V RL=10 kW Distance between paper surface and sensor g=1.0 mm Facsimile chart bar code 0.5 mm
* Output Current vs. Bar Code Width (Ta=25C)
60
Output Current IP (mA)
50 40 30 20 10 0 Black Bar 0 0.2 0.4 0.6 0.8
White Bar Conditions IF=50 mA VCC=10 V RL=10 kW Distance between paper surface and sensor g=1.0 mm Facsimile chart bar code
1.0
Bar Code Width W (mm)
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PHOTOSENSOR UNITS * Output Current vs. Ambient Temperature
OC808
Relative Output Current
1.0
0.5 -20 0 20 40 60 80
Conditions IF=50 mA VCC=10 V RL=10 kW Distance between paper surface and sensor g=1.0 mm White area of facsimile chart 100
Ambient Temperature Ta (C)
* Test Circuit
+ - +VCC G
IF
RL
V
Facsimile Chart
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