OPIC Photointerruper with
s
Features
s
Applications
2. Numerical control machines
*1 Pulse width<=100
µ
s, Duty ratio= 0.01
*2 For 5 seconds
( Ta= 25°C)
GP1A33R
GP1A33R
s
Outline Dimensions
( Unit: mm)
1. 2-phase ( A, B ) digital output
3. Sensing accuracy
OPIC
12.0
9.9
4.4
(7.25)
(1.27)
6.0
8.0
11.4
6.4
( 2.54
)
20.0
GP1A33R
4
-
R2.5
3
-
( 1.27
)
1
2
3
4
5
6
1
6
2
5
4
3
1 Anode
2 Cathode
4 GND
OPIC
Internal connection
diagram
Parameter
Symbol
Rating
Unit
Input
Forward current
I
F
65
mA
*1
Peak forward current
I
FM
1
A
Reverse Voltage
V
R
6
V
P
100
mW
Output
Supply voltage
V
CC
7
V
I
OL
20
mA
Power dissipation
P
O
250
mW
Operating temperature
T
opr
0 to + 70
°C
Storage temperature
T
stg
- 40 to + 80
°C
*2
Soldering temperature
T
sol
260
°C
Encoder Function
2. Capable of using plastic disk
( Disk slit pitch: 1.14mm )
4. TTL compatible
5. Compact and light
Power dissipation
Low level output current
1. Electronic typewriters, printers
4.0
±
0.15
An OPIC consists of a light-detecting element and signal-
processing circuit integrated onto a single chip.
*" OPIC" (Optical IC ) is a trademark of the SHARP Corporation.
data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.
"
"
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs,
s
Absolute Maximum Ratings
*
Tolerance
:±
0.3mm
*
( )
:
Reference dimensions
5 V
CC
6 V
OA
3 V
OB
2
-
2.0
±
0.1
0.8
±
0.15
2.0
±
0.15
7.5
±
0.1
6.4
±
0.15
10.5
MIN.
8.0
MIN.
2.5
±
0.15
1.4
±
0.15
4
-
R1.3
±
0.15
15.0
±
0.15
GP1A33R
( Unless otherwise specified, Ta = 0 to + 70°C )
*3 Measured under the condition shown in Measurement Condition.
*4 In the condition that output A and B are low level.
t
AH
t
AP
t
t
*5 D
A
=
s
Output Waveforms
Symbol
MIN.
TYP.
MAX.
Unit
V
F
-
1.2
1.5
V
I
R
-
-
10
µ
A
V
CC
4.5
5.0
5.5
V
V
OH
2.4
4.9
-
V
V
OL
-
0.1
0.4
V
I
CC
-
5
20
mA
D
A*5
D
B*5
f
MAX.
-
-
kHz
Conditions
Ta= 25°C, V
R
= 3V
CC
= 5V, I
F
= 30mA
s
Electro-optical Characteristics
Parameter
Input
Forward voltage
Reverse current
Output
High level output voltage
Low level output voltage
Supply current
Transfer
charac-
teristics
Duty ratio
Response frequency
t
AH
t
AP
t
AB1
t
BH
t
BP
Output A
( V
OA
)
Output B
( V
OB
)
Rotational direction
:
Counterclockwise when seen
from OPIC light detector
Ta= 25°C, I
F
= 30mA
70
0
25
50
75
100
60
50
40
30
20
10
0
70
0
50
100
150
200
250
300
100
75
50
25
0
70
80
90
100
65
Fig. 1 Forward Current vs. Ambient
Temperature
Fig. 2 Output Power Dissipation vs.
Ambient Temperature
Forward current I
F
(
mA
)
Ambient temperature T
a
(°C)
Ambient temperature T
a
( °C)
Output power dissipation P
O
(
mW
)
5
B
BH
BP
*3
V
V
CC
= 5V, I
F
= 30mA,
*3*4
I
F
= 30mA, V
CC
= 5V
*3
f=2.5kHz
*3
V
CC
= 5V, I
F
= 30mA
*3
I
OL
= 8mA, V
CC
= 5V, I
F
= 30mA
Operating supply voltage
20
20
50
50
80
80
%
%
=
x 100, D
x 100
(Output B )
1
10
2
5
( Output A )
Frequency f ( kHz )
0.6
0.7
0.1
0.2
0.3
0.4
0.5
90
80
70
100
110
120
130
20
0.9
0.8
1
2
5
10
20
50
60
Fig. 3 Duty Ratio vs. Frequency
Temperature
Phase difference
ABI
t
AH
t
AP
t
BH
t
BP
V
CC
= 5V
I
F
= 30mA
T
a
= 25°C
V
CC
= 5V
I
F
= 30mA
T
a
= 25°C
ABI
=
x 360°
t
AP
t
ABI
GP1A33R
( Output A)
( Output B)
f = 2.5kHz
Duty ratio
0.4
0.3
0.2
0.1
0
0.6
0.5
25
0
50
75
100
130
120
110
100
90
80
70
Distance X ( mm ) ( Shifting encoder )
(Output B)
(Output A)
0.6
0.7
0.1
0.2
0.3
0.4
0.5
Duty ratio
f= 2.5kHz
1.0
0
- 1.0
( + )
( - )
Disk
Reference position
Distance X ( mm ) ( Shifting encoder )
70
80
90
100
110
120
130
1.0
0.9
0.8
0.7
f = 2.5kHz
100
75
50
0
25
40
50
60
140
- 0.5
0.5
0.9
0.8
f= 2.5kHz
- 1.0
- 0.5
0
0.5
1.0
50
60
Temperature
Fig. 6 Phase Difference vs. Ambient
Fig. 5 Duty Ratio vs. Ambient Temperature
V
CC
= 5V
I
F
= 30mA
t
AH
t
AP
t
BH
t
BP
V
CC
= 5V
I
F
= 30mA
AB1
=x
360°
t
AB1
t
AP
V
CC
= 5V
I
F
= 30mA
V
CC
= 5V
I
F
= 30mA
AB1
=
x 360°
t
AB1
t
AP
GP1A33R
Phase difference
AB1
t
AH
t
AP
t
BH
t
BP
T
a
= 25°C
T
a
= 25°C
Phase difference
AB1
Fig. 8 Phase Difference vs.
Duty ratio
Fig. 4 Phase Difference vs. Frequency
(
deg.
)
(
deg.
)
(
deg.
)
Ambient temperature T
a
( °C)
Ambient temperature T
a
( °C)
Frequncy f ( kHz )
Fig. 7 Duty Ratio vs. Distance (X direction )
Distance (X direction )
Duty ratio
Distance Y ( mm ) ( Shifting encoder )
position
Distance Y ( mm ) ( Shifting encoder )
( - )
( + )
- 1.0
- 0.5
0
0.5
1.0
0.8
0.9
0.5
0.4
0.3
0.2
0.1
0.7
0.6
f= 2.5kHz
- 1.0
- 0.5
0
0.5
1.0
60
50
130
120
110
100
90
80
70
f= 2.5kHz
(Output A )
(Output B )
Disk
V
CC
= 5V
I
F
= 30mA
AB1
=
x 360°
t
AB1
t
AP
GP1A33R
V
CC
= 5V
I
F
= 30mA
t
AH
t
AP
t
BH
t
BP
T
a
= 25°C
T
a
= 25°C
Phase difference
AB1
Fig.10 Phase Difference vs.
GP1A33R
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
f = 2.5kHz
Duty ratio
( Output A)
( Output B)
Distance Z ( mm ) ( Shifting encoder )
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
50
70
80
90
100
110
120
130
60
f = 2.5kHz
Distance Z ( mm ) ( Shifting encoder )
Disk
( Detecting side)
( Emitting side )
OPIC
Z
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
V
CC
= 5V
I
F
= 30mA
t
AH
t
AP
t
BH
t
BP
V
CC
= 5V
AB1
=
x 360°
t
AB1
t
AP
T
a
= 25°C
T
a
= 25°C
Phase difference
AB1
Fig.12 Phase Difference vs.
(
deg.
)
Reference
(
deg.
)
I
F
= 30mA
Fig. 9 Duty Ratio vs. Distance (Y direction )
Distance (Y direction )
Fig.11 Duty Ratio vs. Distance (Z direction )
Distance ( Z direction )
15
20
1.4
6.4
(15.825)
A
4-R1.3
Disk center
R10.89
8
9.9
7.5
12
11.4
0.5
2
0.8 A
P
Disk center
Slit pitch
:
P
Measurement Conditions
(9.125)
Enlarged drawing
of A portion
GP1A33R
r
2
r
1
r
1
=
r
2
S
2
<Basic Design>
R
O
( distance between the disk center and half point of a slit ) ,
Slit pitch : P ( slit center )
N
2x p x R
O
P=
( mm )
N
S
1
= R
O
- 1.765 (mm ), S
2
= S
1
+ 6.7 (mm )
( Ex. ) In the case of
R
O
s
Precautions for Use
Disk
60 slits
60
= 18.15mm
2x p x 18.15
100
P =
= 1.14mm
S
1
= 18.15- 1.765
= 16.385mm
S
2
= 16.385+ 6.7
= 23.085mm
60
R
O
=
x 10.89 ( mm ) N: number of slits
S
1
GP1A33R
P ( slit pitch ) , S
1
and S
2
( installing position of photoint-
parenthesis are also changed according to the number.
( 2) Fixing torque : MAX. 0.6N · m
errupter ) will be provided by the following equations.
N= 100P/R
100
=
x 10.89 ( mm )
4
Note ) When the number of slits is changed, values in
3
f 26.48, 0.1t
( 1) This module is designed to be operated at I
F
= 30mA TYP.
between Vcc and GND near the device.
( 3) In order to stabilize power supply line, connect a by-pass capacitor of more than 0.01
µ
F
( 4) As for other general cautions, refer to the chapter " Precautions for Use .
"
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