RPI-121 Ver la hoja de datos (PDF) - ROHM Semiconductor
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RPI-121 Datasheet PDF : 2 Pages
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RPI-121
Photointerrupter, Ultraminiature type
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
−25 to +85
°C
Tstg
−40 to +100
°C
Applications
Optical control equipment
Cameras
Floppy disk drives
Features
1) Ultra-small.
2) Minimal influence from stray light.
3) Low collector-emitter saturation voltage.
Electrical and optical characteristics (Ta=25°C)
Parameter
Forward voltage
Reverse current
Dark current
Peak sensitivity wavelength
Collector current
Collector-emitter saturation
voltage
Response time
Cut-off frequency
Symbol Min. Typ. Max. Unit
VF
−
1.3 1.6
V
IR
−
−
10 µA
ICEO
−
−
0.5 µA
λP
− 800
−
nm
IC1
0.7
−
IC2
0.2
−
−
mA
−
mA
VCE(sat)
−
−
0.3
V
tr tf
−
10
−
µs
fC
−
1
− MHz
Peak light emitting wavelength
λP
−
950
−
nm
Response time
tr tf
−
10
−
µs
Maximum sensitivity wavelength λP
−
800
−
nm
IF = 50mA
VR = 5V
VCE = 10V
Conditions
−
VCE = 5V, IF = 20mA
VCE = 5V, IF = 5m
IF = 20mA, IC = 0.3mA
VCC = 5V, IF = 20mA, RL =100Ω
IF=50mA
∗ Non-coherent Infrared light emitting diode used.
VCC=5V, IC=1mA, RL=100Ω
∗ This product is not designed to be protected against electromagnetic wave.
−
Electrical and optical characteristics curves
125
100
d
75
50
25
00
0.5
1.0
1.5
2.0
2.5
DISTANCE : d (mm)
Fig.1 Relative output current vs.
distance ( )
125
100
75
50
25
0
0
0.5
1.0
1.5
2.0
2.5
DISTANCE : d (mm)
Fig.4 Relative output current vs.
distance ( )
50
40
30
20
10
0
−20 0
20 40 60 80 100
AMBIENT TEMPERATURE : Ta (˚C)
Fig.2 Forward current falloff
120
100
PD PC
80
60
40
20
0 −20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta (˚C)
Fig.5 Power dissipation / collector power
dissipation vs. ambient temperature
50
−25˚C
0˚C
40
25˚C
50˚C
75˚C
30
20
10
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
FORWARD VOLTAGE : VF (V)
Fig.3 Forward current vs. forward
voltage
160
140
120
100
80
60
40
20
0
−40 −20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta (˚C)
Fig.6 Relative output vs. ambient
temperature
External dimensions (Unit : mm)
3.6
Through hole
2.65
Gap 1
0.8
A
Cross-section A-A 0.4
Optical axis center
4-φ 0.8
C0.7
2-R0.1
A
2-R0.3
(2.65)
4-0.2
4-0.5
4-0.4
(2)
Anode
Collector
Cathode
Emitter
Notes:
1. Unspecified tolerance
shall be ±0.2 .
2. Dimension in parenthesis are
show for reference.
5
4
3
2
1
0
0
10
20
30
40
50
FORWARD CURRENT : IF (mA)
Fig.7 Collector current vs.
forward current
10
8
IF=50mA
40mA
6
30mA
4
20mA
2
10mA
00
2
4
6
8
10
COLLECTOR TO EMITTER VOLTAGE: VCE (V)
Fig.10 Output characteristics
100
RL=1kΩ
10
RL=500Ω
RL=100Ω
1
0.05 0.1
1
10
COLLECTOR CURRENT : IC (mA)
Fig.8 Response time vs.
collector current
Input VCC
Input
Output
RL
90%
Output
td
tr
10%
tf
td : Delay time
t r :Rise time (time for output current to rise from
10% to 90% of peak current)
t f : Fall time (time for output current to fall from 90%
to 10% of peak current)
Fig.11 Response time measurement circuit
1000
100
VCE=30V
VCE=20V
10
VCE=10V
1
0.1
−25 0
25 50 75 100
AMBIENT TEMPERATURE : Ta (˚C)
Fig.9 Dark current vs.
ambient temperature
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