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RPR-220_05 Datasheet, PDF (1/2 Pages) Rohm – Reflective photosensor (photoreflector) | |||
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RPR-220
Reflective photosensor (photoreflector)
Absolute maximum ratings (Ta=25°C)
Parameter
Forward current
Reverse voltage
Power dissipation
Collector-emitter voltage
Emitter-collector voltage
Collector current
Collector power dissipation
Operating temperature
Storage temperature
Symbol
Limits
Unit
IF
50
mA
VR
5
V
PD
80
mW
VCEO
30
V
VECO
4.5
V
IC
30
mA
PC
80
mW
Topr
â25 to +85
°C
Tstg
â30 to +85
°C
Applications
Compact disc players
Copiers
Game machines
Office automation equipment
Features
1) A plastic lens is used for high sensitivity.
2) A built-in visible light filter minimizes the
influence of stray light.
3) Lightweight and compact.
Electrical and optical characteristics (Ta=25°C)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Forward voltage
VF
â
1.34 1.6
V IF=50mA
Reverse current
IR
â
â
10
µA VR=5V
Dark current
ICEO
â
â
0.5 µA VCE=10V
Peak sensitivity wavelength
λP
â 800 â
nm
â
Collector current
IC
0.08 0.3 0.8 mA VCE=2V, IF=10mA
â
Collector-emitter saturation
voltage
VCE(sat)
â
0.1 0.3
V IF=20mA, IC=0.1mA
â
Response time
tr tf
â
10
â
µs VCE=5V, IF=20mA, RL=100â¦
â
Cut-off frequency
fC
Peak light emitting wavelength
λP
Response time
tr tf
â
1
â
MHz IF=50mA
â
940 â
nm
â Non-coherent Infrared light emitting diode used.
â
10
â
µs
VCC=5V, IC=1mA, RL=100â¦
â This product is not designed to be protected against electromagnetic wave.
Maximum sensitivity wavelength λP
â
800 â
nm
â
â Reflector object : Standard white paper. (Reflection ratio = 90%)
Electrical and optical characteristics curves
Reflector
d = 6mm
Reflective
photointerrupter
100
10
10 2 4 6 8 10 12 14
DISTANCE : d (mm)
Fig.1 Relative output vs. distance
2.0
1.6
1.2
10mA
1mA
0.8
0.4
0
0
20
40
60
80 100
AMBIENT TEMPERATURE : Ta (ËC)
Fig.4 Forward voltage vs.ambient
temperature
100
80
60
40
20
0
0
20
40
60
80 100
AMBIENT TEMPERATURE : Ta (ËC)
Fig.2 Forward current vs.
ambient temperature
100
PC
80
PD
60
40
20
0
0
20
40
60
80 100
AMBIENT TEMPERATURE : Ta (°C)
Fig.5 Power dissipation / collector power
dissipation vs. ambient temperature
1A
Ta=25°C
100
10
1
0.1
0.8
1.0 1.2 1.4 1.6 1.8 2.0
FORWARD VOLTAGE : VF (V)
Fig.3 Forward current vs.
forward voltage
160
140
120
100
80
60
40
20
0
â60 â40 â20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta (ËC)
Fig.6 Relative output vs. ambient
temperature
External dimensions (Unit : mm)
6.4
2.8
2-Ï2.2
0.35
Through hole
2.8
4-Ï 1.0
4-0.6
4- 0.5±0.1
(2.8)
(2.5)
Anode
Cathode
Collector
Emitter
Notes:
1. Unspecified tolerance
shall be ±0.2 .
2. Dimension in parenthesis are
show for reference.
VCE=2V
2.5
d=6mm
2.0
1.5
1.0
0.5
0
0
10
20
30
40
50
FORWARD CURRENT : IF (mA)
Fig.7 Collector current vs. forward current
2.4
Standard paper(90%reflection)
2.2
d=6mm
2.0
1.8
1.6
IF=40mA
1.4
1.2
30mA
1.0
0.8
20mA
0.6
15mA
0.4
10mA
0.2
5mA
0
0
5
10
15
20
25
COLLECTORâEMITTER : VCE (V)
Fig.8 Output characteristics
1
VCE=30V
20V
10V
0.1
0.01
0.001
â100 â80 â60 â40 â20 0 20 40 60 80 100 120 140
AMBIENT TEMPERATURE : Ta (ËC)
Fig.9 Dark current vs. ambient
temperature
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