Datasheet RPI-441C1 Datasheet (ROHM)

RPI-441C1

Photointerrupter, Small type

Absolute maximum ratings (Ta=25°C)

)
LED

(

Input

Output

photo-

Input

charac-

Output

charac-

Transfer

charac-

Infrared

light

emitter

Photo

transistor

Parameter Symbol
Forward current
Reverse voltage
Power dissipation
Collector-emitter voltage

)

Emitter-collector voltage
Collector current

transistor

(

Collector power dissipation
Operating temperature
Storage temperature

IF
VR
PD

VCEO
VECO

I

C

PC

Topr
Tstg

Electrical and optical characteristics (Ta=25°C)

V

IR

ICEO

λ

IC

tr tf

fC

tr tf

λ

Min.

−

F

−

−

−

P

0.2

−

−

− 1 − MHz

λ

P

− 950 −

P

−

Parameter Symbol
Forward voltage
Reverse current

teristics

Dark current
Peak sensitivity wavelength

teristics

Collector current
Collector-emitter saturation

voltage

teristics

VCE(sat)

Response time
Cut-off frequency

Peak light emitting wavelength

diode

Response time − 10 −

Maximum sensitivity wavelength

Limits

50

5
80
30

4.5
30
80

−25 to +85

−30 to +85

Max.

Typ.

1.3

−

−

800

0.55

−

10

800

1.6
10

0.5

0.4

−

−

−

−

Unit

mA

V

mW

Applications

Optical control equipment
Facsimiles
Printers

V
V

mA

mW

°C
°C

Unit

VI

V

μA

V

μA

F=50mA

R=5V
CE=10V

Conditions

nm

V

mA

CE=5V, IF=20mA

V

F=20mA, IC=0.1mA

I

CC=5V, IF=20mA, RL=100Ω

μs

V

IF=50mA

∗ Non-coherent Infrared light emitting diode used.

nm

VCC=5V, IC=1mA, RL=100Ω

μs

∗ This product is not designed to be protected against electromagnetic wave.

nm

Features

1) Compact with a 4mm gap.

2) High precision position detection
(slit width of 0.5mm).

3) Minimal influence from stray light.

4) Low collector-emitter voltage.

−

−

Electrical and optical characteristics curves

)
%

100

75

50

25

d

RELATIVE COLLECTOR CURRENT : Ic (

0

0 3.01.0 2.0

DISTANCE : d (mm)

Fig.1 Relative output current vs.

distance ( )

)
%

100

75

50

25

RELATIVE COLLECTOR CURRENT : Ic (

0

0 3.01.0 2.0

DISTANCE : d (mm)

Fig.4 Relative output current vs.

distance ( )

VCE=5V

F=20mA

I
Ta=25°C

VCE=5V

F=20mA

I

a=25°C

T

d

50

40

30

20

10

FORWARD CURRENT : IF (mA)

0

120

/ Pc (mW)

D

100

80

60

40

20

0

POWER DISSIPATION /

COLLECTOR POWER DISSIPATION : P

Fig.5 Power dissipation / collector power

−20 0 20 40 60 80 100
AMBIENT TEMPERATURE : Ta (°C)

Fig.2 Forward current falloff

PD

PC

−20 0 40 60 8020 100
AMBIENT TEMPERATURE : Ta (°C)

dissipation vs. ambient temperature

50

40

30

20

10

FORWARD CURRENT : IF (mA)

0

0.40 0.8 1.2 2.01.6

FORWARD VOLTAGE : VF (V)

Fig.3 Forward current vs. forward

voltage

)
%

100

50

RELATIVE COLLECTOR CURRENT : Ic (

0

0 −25 250 1007550

AMBIENT TEMPERATURE : Ta (°C)

Fig.6 Relative output vs. ambient

temperature

−25°C
0°C

25°C
50°C
75°C

External dimensions (Unit : mm)

4.2

5.2

3.6±0.5

0.5

4.2

Gap

3.25±0.1

8±0.5

4±0.5

3.6

(6.7)

A

C0.4

A

φ1.2

+0

-0.1

1.2

Optical axis center

4-0.2

Through hole

Cross-section A-A

(2.4)

1.2

Cathode

(2.5)

2.5

Collector

C0.6

4-0.5

2.6

6.7
4-φ0.8

φ1.4

2.0

1.0

COLLECTOR CURRENT : Ic (mA)

0

0403010 20 50

FORWARD CURRENT : IF (mA)

Fig.7 Collector current vs.

forward current

2.5

2

1.5

1

0.5

COLLECTOR CURRENT : Ic (mA)

0

COLLECTOR TO EMITTER VOLTAGE : VCE (V)

4861020

IF=50mA

40mA

30mA

20mA

10mA

Anode

100

RL=1kΩ

10

RESPONSE TIME : t (μs)

1

COLLECTOR CURRENT : Ic (mA)

Fig.8 Response time vs.

VCCInput

td :

Delay time
Rise time (time for output current to rise

tr :

from 10% to 90% of peak current)

tf :

Fall time (time for output current to fall
from 90% to 10% of peak current)

RL=500Ω

RL=100Ω

collector current

Input

Output

RL

Output

td

tr

Emitter

100.1 1

90%
10%

tf

Notes:

1. Unspecified tolerance

shall be ±0.2 .

2. Dimension in parenthesis are
show for reference.

1000

100

VR=10V

10

1

DARK CURRENT : ID (nA)

0.1

0 25 50 75 100−25

AMBIENT TEMPERATURE : Ta (°C)

Fig.9 Dark current vs.

ambient temperature

VR=20V

VR=30V

Fig.10 Output characteristics

Fig.11 Response time measurement circuit

2012.10.23 Rev.B

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R1120A