Sharp GPD12 User Manual

GP2D12/GP2D15

GP2D12/GP2D15

General Purpose Type Distance

Measuring Sensors

■

Features

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

■

Applications

1. TVs

2. Personal computers

3. Cars

4. Copiers

■

Absolute Maximum Ratings

(Ta

=

25

°

C, Vcc

=

5V)

Parameter Symbol

Supply voltage

Output terminal voltage

Operating temperature

Storage temperature

V

CC

V

O

T opr

T stg

Rating Unit

−

0.3 to

+

7 V

−

0.3 to Vcc

+

0.3

V

−

10 to

+

60

−

40 to

+

70

°

°

C

C

■

Outline Dimensions

(Unit : mm)

★ 4.5

φ 3.2 hole

R3.75

3.75

Light emitter side

7.5

★

37

29.5

20

10.1

14.75

4.15

±

0.1

16.3

Light detector side

R3.75

2

6.3

Lens case

φ

3.2 hole

Connector

Made by

J.S.T. MFG,

CO., LTD.

S3B-PH

1.2

3.3

PWB

1 3

❈ The dimensions marked ★ are described the dimensions of lens center position.

❈ Unspecified tolerance : ± 0.3mm

Terminal connection

1

2

3

V

O

GND

V

CC

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/

■

Recommended Operating Conditions

Parameter

Operating supply voltage

Symbol

V

CC

Rating

4.5 to

+

5.5

Unit

V

■

Electro-optical Characteristics

Parameter

Distance measuring range

Output terminal voltage

GP2D12

GP2D15

Difference of output voltage

Distance characteristics of output

GP2D12

GP2D15

Average Dissipation current

Symbol

∆

L

V

V

OL

∆

V

O

V

O

I

V

O

OH

CC

*1 *3

L

=

80cm

*1

*1

Output voltage at High

*1

Output voltage at Low

Output change at L

=

80cm to 10cm

*1 *2 *4

L

=

80cm

*1

Conditions

*1

MIN.

10

0.25

Vcc

−

0.3

−

1.75

21

−

TYP.

−

0.4

−

−

2.0

24

33

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.

GP2D12/GP2D15

(Ta

=

25

°

C, V

CC

=

5V)

MAX.

Unit

80

0.55

−

0.6

2.25

27

50 cm

V

V

V

V cm mA

Fig.1 Internal Block Diagram

GP2D12

GND V

CC

5V

PSD

LED

Signal processing circuit

Voltage regulator

LED drive circuit

Oscillation circuit

Output circuit

Distance measuring IC

V o

Analog output

Fig.2 Internal Block Diagram

GP2D15

GND V

CC

5V

PSD

LED

Signal processing circuit

Voltage regulator

LED drive circuit

Oscillation circuit

Output circuit

Distance measuring IC

V

CC

12k

Ω

V o

Digital output

Fig.3 Timing Chart

V

CC

(Power supply)

Distance measuring operation

V

O

(Output)

38.3ms

±

9.6ms

First measurment

Second measurment

Unstable output nth measurment

First output Second output

5.0ms

MAX.

(GP2D12)

7.6ms

±

1.9ms

TYP.

(GP2D15) nth output

GP2D12/GP2D15

Fig.4 Distance Characteristics

GP2D15

(Detection)

H L

Output H

Hystersis width

L H

(Non detection)

Output L

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

Output switching point distance

L

=

24

±

3cm

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

2.0

Reflective object

Kodak Co., Ltd. gray cards R-27

(reflective ratio : 90%) illuminance meter

Light source equivalent to sun light

GP2D12

1.6

1.2

L

=

30cm

0.8

0.4

L

=

60cm

0

0 2000 4000 6000 8000 10000 12000

Surface illuminance of reflective object (lx)

14000

Fig.7 Analog Output Voltage vs.Ambient

Temperature

GP2D12

3.0

2.8

L

=

10cm

2.4

2.0

1.6

L

=

15cm

1.2

L

=50 cm

L

=

L

=

20cm

40cm L

=

30cm

0.8

0.4

0

−

20

−

10

L

=

60cm

0 10 20 30

L

=

40

70cm

50 60

L

Ambient temperature T a

(

°

C)

=

80cm

70 80 90

Fig.6 Analog Output Voltage vs.Distance to

Reflective Object

GP2D12

3.0

2.8

Draft Reflectivity

White

Gray

90%

18%

2.4

2.0

1.6

1.2

0.8

Gray

0.4

White

0

0 10 20 30 40 50 60

Distance to reflective object L (cm)

70 80

Fig.8 Analog Output Voltage vs.Detection

Distance

GP2D12

3.0

2.8

Kodak Co., Ltd. gray cards R-27

(reflective ratio : 90%)

L (Distance to reflective object)

X (Detection

distance)

2.4

L

=

10cm Sensor

GP2D12

2.0

−

X (Detection

distance)

1.6

1.2

0.8

L

=

L

=

20cm

30cm

L

=

40cm

L

=

80cm

0.4

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.

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