Sharp GP1A71R, GP1A70R Datasheet
OPIC Photointerrupter with
GP1A70R/GP1A71R
Encoder Functions
GP1A70R/GP1A71R
■ Features ■ Outline Dimensions
1. 2-phase (A, B) digital output
2. Sensing accuracy
(GP1A70R Disk slit pitch : 1.14mm
(GP1A71R Disk slit pitch : 0.7mm
3. PWB mounting type
(Lead bending type
)
4. TTL compatible output
5. Compact, lightweight
■ Applications
1. Printers
2. Copiers
3. Numerical control machines
)
)
0.15
±
10.5
2 - C0.2
*“OPIC” (Optical IC) is a trademark of the SHARP Corporation.
An OPIC consists of a light-detecting element and signal processing circuit integrated onto a single chip.
7.2
6.5
6.0
0.2-0.1
+
2.0
0.75
GP1A70R
6.0
12.5
13.0
2- φ 2.0
12.0
(
)
6.56
2
1
4.0
5
± 0.1
2 -(1.75
±
0.1
6
3
(
Unit : mm
Internal connection diagram
1
2
1 Anode
2 Cathode
3 V
OB
3456
MIN.
2.5
)
4
)
1.27
(
)
3 -
*Tolerance :± 0.3mm
2.54
(
*( ): Reference dimensions
6
5
4
3
4 GND
5 V
CC
6 V
OA
12
)
OPIC
■ Absolute Maximum Ratings
Parameter
Forward current I
*1
Input
Peak forward current I
Reverse voltage
(
Ta = 25˚C
Symbol Rating Unit
F
FM
V
R
50 mA
1A
6V
)
Power dissipation P 75 mW
Supply voltage V
Output
Low level output current I
Power dissipation P
Operating temperature T
Storage temperature T
*2
Soldering temperature T
*1 Pulse width<=100µs, Duty ratio 0.01
*2 For 5 seconds
“ 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,
data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device.”
CC
OL
O
opr
stg
sol
7V
20 mA
250 mW
0 to + 70 ˚C
- 40 to + 80 ˚C
260 ˚C
GP1A70R/GP1A71R
■ Electro-optical Characteristics
Parameter Symbol
Input
Forward voltage V
Reverse current I
Operating supply voltage V
Output
High level output voltage V
Low level output voltage V
Supply current I
Transfer
characteristics
Duty ratio
Response frequency f
*3 Measured under the condition shown in Measurement Conditions.
*4 In the condition that output A and B are low level.
t
AH
: x 100, DB: x 100, Duty ratio: Average disk rotation time per turn
*5 D
A
t
AP
t
BH
t
BP
GP1A70R
GP1A71R
*5
DA, D
F
R
CC
OH
OL
CC
B
MAX.
■ Output Waveforms
Output A
)
(V
OA
Output B
(V
OB
)
t
AH
t
AP
t
AB1
t
BH
t
BP
Rotational direction: Counterclockwise when seen
(
Ta= 25˚C unless otherwise specified
Conditions MIN. TYP. MAX. Unit
= 20mA, Ta= 25˚C - 1.2 1.4 V
I
F
VR= 3V, Ta= 25˚C
--10µA
4.5 5.0 5.5 V
*3
VCC= 5V, IF= 20mA 2.4 4.9 - V
*3
IOL= 8mA, VCC= 5V, IF= 20mA
*4
VCC= 5V, IF= 20mA - 5 20 mA
*3
VCC= 5V, IF= 20mA, f = 2.5kHz
*3
VCC= 5V, IF= 20mA - - 10 kHz
from OPIC light detector
- 0.1 0.4 V
25 50 75 %
25
50 %
75
)
Fig. 1 Forward Current vs. Ambient
Temperature
60
50
)
40
mA
(
F
30
20
Forward current I
10
0
0
Ambient temperature Ta (˚C
70
)
Fig. 2 Output Power Dissipation vs.
Ambient Temperature
300
)
250
mW
(
O
200
150
100
50
Output power dissipation P
0
100755025
0
Ambient temperature Ta (˚C
70
100755025
)
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