Sharp GPD12 User Manual
GP2D12/GP2D15
GP2D12/GP2D15
General Purpose Type Distance
Measuring Sensors
■ Features
■ Outline Dimensions
6.3
Lens case
R3.75
φ3.2 hole
3.75
Light emitter side 10.1
4.15
1
16.3
3
Connector 1.2
Made by
3.3
J.S.T. MFG,
CO., LTD.
S3B-PH
13
2
+0.5
18.9−0.3
R3.75
7.5
1. TVs
2. Personal computers
3. Cars
4. Copiers
Light detector side
8.4
7.2
4.5
φ3.2 hole
14.75
■ Applications
PWB
Terminal connection
■ Absolute Maximum Ratings
(Ta=25°C, Vcc=5V)
Parameter
Supply voltage
Output terminal voltage
Operating temperature
Storage temperature
★
37
29.5
★20±0.1
2-1.5
13.5
1. Less influence on the color of reflective objects, reflectivity
2. Line-up of distance output/distance judgement type
Distance output type (analog voltage) : GP2D12
Detecting distance : 10 to 80cm
Distance judgement type : GP2D15
Judgement distance : 24cm
(Adjustable within the range of 10 to 80cm)
3. External control circuit is unnecessary
4. Low cost
(Unit : mm)
Symbol
Rating
−0.3 to +7
VCC
VO
−0.3 to Vcc +0.3
Topr
−10 to +60
−40 to +70
Tstg
Unit
V
V
°C
°C
❈ The dimensions marked ★ are
described the dimensions of
lens center position.
❈ Unspecified tolerance : ±0.3mm
1
2
3
VO
GND
VCC
Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Internet Internet address for Electronic Components Group http://www.sharp.co.jp/ecg/
GP2D12/GP2D15
■ Recommended Operating Conditions
Parameter
Operating supply voltage
Symbol
VCC
Rating
4.5 to +5.5
Unit
V
■ Electro-optical Characteristics
Parameter
Distance measuring range
GP2D12
Output terminal voltage
GP2D15
Difference of output voltage GP2D12
Distance characteristics of output
GP2D15
Average Dissipation current
Symbol
∆L
VO
VOH
VOL
∆VO
VO
ICC
MIN.
10
0.25
Conditions
*1 *3
L=80cm *1
*1
Output voltage at High
*1
Output voltage at Low
Output change at L=80cm to 10cm
*1
*1 *2 *4
L=80cm
*1
Vcc −0.3
−
1.75
21
−
TYP.
−
0.4
−
−
2.0
24
33
(Ta=25°C, VCC=5V)
MAX.
Unit
80
cm
V
0.55
−
0.6
2.25
27
50
V
V
V
cm
mA
Note) L : Distance to reflective object.
*1 Using reflective object : White paper (Made by Kodak Co. Ltd. gray cards R-27 ⋅ white face, reflective ratio ; 90%).
*2 We ship the device after the following adjustment : Output switching distance L=24cm±3cm must be measured by the sensor.
*3 Distance measuring range of the optical sensor system.
*4 Output switching has a hysteresis width. The distance specified by Vo should be the one with which the output L switches to the output H.
Fig.1 Internal Block Diagram
Fig.2 Internal Block Diagram
GP2D12
GP2D15
VCC 5V
GND
PSD
Signal
processing
circuit
PSD
Signal
processing
circuit
Voltage
regulator
Oscillation
circuit
LED drive
circuit
LED
VCC 5V
GND
Voltage
regulator
Oscillation
circuit
Vo
Analog output
Output
circuit
LED drive
circuit
LED
Distance measuring IC
Output
circuit
Distance measuring IC
Fig.3 Timing Chart
VCC
(Power supply)
38.3ms±9.6ms
Distance
measuring
operation
First measurment
VO (Output)
Unstable output
Second
measurment
First output
nth
measurment
Second output
5.0msMAX.(GP2D12)
7.6ms±1.9msTYP.(GP2D15)
nth output
VCC
12kΩ
Vo
Digital output
GP2D12/GP2D15
Fig.4 Distance Characteristics
GP2D15
(Detection)
H
L
Output (V)
Output H
Hystersis width
L
Output L
(Non detection)
H
0
5
10 15 20 25
Output switching point distance
L=24±3cm
30
35
40
45
50
55
60
65
70
75
80
Distance to reflective object L (cm)
Fig.5 Analog Output Voltage vs. Surface
Illuminance of Reflective Object
GP2D12
3.0
2.8
L=10cm
2.4
Light source
equivalent to
sun light
Reflective object
Kodak Co., Ltd.
gray cards R-27
(reflective ratio : 90%)
illuminance
meter
2.0
1.6
GP2D12
L=30cm
1.2
0.8
Analog output voltage VO (V)
Analog output voltage VO (V)
3.0
2.8
Fig.6 Analog Output Voltage vs.Distance to
Reflective Object
GP2D12
Draft
White
Gray
2.4
2.0
1.6
1.2
Gray
0.8
0.4
0.4
L=60cm
White
0
0
0
2000
4000
6000
0
8000 10000 12000 14000
10
Fig.7 Analog Output Voltage vs.Ambient
Temperature
GP2D12
3.0
2.8
20
30
40
L=15cm
1.6
L=20cm
L=50cm
L=40cm
L=30cm
0.8
70
80
GP2D12
3.0
2.8
Analog output voltage VO (V)
Analog output voltage VO (V)
2.0
60
Fig.8 Analog Output Voltage vs.Detection
Distance
Kodak Co., Ltd. gray cards R-27
(reflective ratio : 90%)
L(Distance to
reflective object)
X(Detection
L=10cm
2.4
50
Distance to reflective object L (cm)
Surface illuminance of reflective object (lx)
1.2
Reflectivity
90%
18%
distance)
2.4
L=10cm
Sensor
GP2D12
2.0
−X(Detection
distance)
1.6
L=20cm
1.2
0.8
L=40cm
L=30cm
L=80cm
0.4
0.4
L=60cm
L=70cm
L=80cm
0
−20 −10 0 10 20 30 40 50 60 70 80 90
Ambient temperature Ta (°C)
0
−5
−4
−3
−2
−1
0
1
2
Detection distance X (cm)
3
4
5
Application Circuits
NOTICE
●The circuit application examples in this publication are provided to explain representative applications of
SHARP devices and are not intended to guarantee any circuit design or license any intellectual property
rights. SHARP takes no responsibility for any problems related to any intellectual property right of a
third party resulting from the use of SHARP's devices.
●Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
SHARP reserves the right to make changes in the specifications, characteristics, data, materials,
structure, and other contents described herein at any time without notice in order to improve design or
reliability. Manufacturing locations are also subject to change without notice.
●Observe the following points when using any devices in this publication. SHARP takes no responsibility
for damage caused by improper use of the devices which does not meet the conditions and absolute
maximum ratings to be used specified in the relevant specification sheet nor meet the following
conditions:
(i) The devices in this publication are designed for use in general electronic equipment designs such as:
--- Personal computers
--- Office automation equipment
--- Telecommunication equipment [terminal]
--- Test and measurement equipment
--- Industrial control
--- Audio visual equipment
--- Consumer electronics
(ii)Measures such as fail-safe function and redundant design should be taken to ensure reliability and
safety when SHARP devices are used for or in connection with equipment that requires higher
reliability such as:
--- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.)
--- Traffic signals
--- Gas leakage sensor breakers
--- Alarm equipment
--- Various safety devices, etc.
(iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely
high level of reliability and safety such as:
--- Space applications
--- Telecommunication equipment [trunk lines]
--- Nuclear power control equipment
--- Medical and other life support equipment (e.g., scuba).
●Contact a SHARP representative in advance when intending to use SHARP devices for any "specific"
applications other than those recommended by SHARP or when it is unclear which category mentioned
above controls the intended use.
●If the SHARP devices listed in this publication fall within the scope of strategic products described in the
Foreign Exchange and Foreign Trade Control Law of Japan, it is necessary to obtain approval to export
such SHARP devices.
●This publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. Under
the copyright laws, no part of this publication may be reproduced or transmitted in any form or by any
means, electronic or mechanical, for any purpose, in whole or in part, without the express written
permission of SHARP. Express written permission is also required before any use of this publication
may be made by a third party.
●Contact and consult with a SHARP representative if there are any questions about the contents of this
publication.
115
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