GP2Y0A21YK0F

Distance Measuring Sensor Unit Measuring distance: 10 to 80 cm Analog output type

Description

Agency approvals/Compliance
1. Compliant with RoHS directive (2002/95/EC)
GP2Y0A21YK0F is a distance measuring sensor unit, composed of an integrated combination of PSD (position sensitive detector) , IRED (infrared emitting diode) and signal processing circuit. The variety of the reflectivity of the object, the environmental temperature and the operating duration are not influenced easily to the distance detection because of adopting the triangulation method. This device outputs the voltage corresponding to the detection distance. So this sensor can also be used as a proximity sensor.

Applications

1. Touch-less switch (Sanitary equipment, Control of illumination, etc. ) 2. Robot cleaner 3. Sensor for energy saving (ATM, Copier, Vending machine) 4. Amusement equipment (Robot, Arcade game machine)

Features

1. Distance measuring range : 10 to 80 cm 2. Analog output type 3. Package size : 29.51313.5 mm 4. Consumption current : Typ. 30 mA 5. Supply voltage : 4.5 to 5.5 V
Notice The content of data sheet is subject to change without prior 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. Sheet No.: E4-A00201EN 1 Date Dec.01.2006 SHARP Corporation
GP2Y0A21YK0F Block diagram
Signal processing circuit

Voltage regulator

Oscillation circuit

LED drive circuit

Output circuit

Distance measuring IC

Outline Dimensions
(Stamp) Stamp(Example) 2Y0A21 F Model name 4 Z Month(1 to 9,X,Y,Z) Year(2005:5)

(Unit : mm)

Light emitter *4.5
8.4 7.(18.9 +0.5 ) -0.3 1.2 (3.3)

3.75 10.1 14.75

Connector signal

signal name

VO GND VCC
Connector : J.S.T.TRADING COMPANY,LTD, S3B-PH
Note 1. The dimensions marked * are described the dimensions of lens center position. Note 2. Unspecified tolerances shall be 0.3 mm. Note 3. The dimensions in parenthesis are shown for reference.
2Y0A21 F 4Z 37 29.5 * 200.1

Light detector 2

Lens case

Connector PWB

Materials Lens :Acrylic acid resin (Visible light cut-off resin) Case :Carbonic ABS (Conductive resin) PWB :Paper phenol
Product mass : Approx. 3.6g

Sheet No.: E4-A00201EN

GP2Y0A21YK0F Absolute Maximum Ratings
Parameter Supply voltage Output terminal voltage Operating temperature Storage temperature Symbol VCC VO Topr Tstg (Ta=25,VCC=5V) Rating -0.3 to +7 -0.3 to VCC+0.3 -10 to +60 -40 to +70 Unit V V
Electro-optical Characteristics
Parameter Average supply current Distance measuring Output voltage Output voltage differential Symbol ICC L VO VO Conditions L=80cm (Note 1) (Note 1) L=80cm (Note 1) Output voltage differece between L=10cm and L=80cm (Note 1) MIN. 10 0.25 1.65

(Ta=25,VCC=5V) TYP. 30 0.4 1.9 MAX. 0.55 2.15 Unit mA cm V V
* L : Distance to reflective object Note 1 : Using reflective object : White paper (Made by Kodak Co., Ltd. gray cards R-27white face, reflectance; 90%)
Recommended operating conditions
Parameter Supply voltage Symbol VCC Rating 4.5 to 5.5 Unit V
GP2Y0A21YK0F Fig. 1 Timing chart
Vcc(Power supply) 38.3ms9.6ms Distance measuring operating First measurement Second measurement nth measurement

Vo(Output)

Unstable output

First output MAX 5.0ms

Second output

nth output

Fig. 2 Example of distance measuring characteristics(output)
White paper (Reflectance ratio 90%)
3 2.5 Output voltage (V) 2 1.0.5 0
Gray paper (Reflectance ratio 18%)
60 Distance to reflective object L(cm)

6cm 5cm

Output voltage (V)

25cm 20cm 15cm

1 0.5 0

50cm 80cm

30cm 40cm
White paper (Reflectance ratio 90%) Gray paper (Reflectance ratio 18%)
0.1 0.15 0.05 Inverse number of distance (1/cm)
Notes Advice for the optics
The lens of this device needs to be kept clean. There are cases that dust, water or oil and so on deteriorate the characteristics of this device. Please consider in actual application. Please dont do washing. Washing may deteriorate the characteristics of optical system and so on. Please confirm resistance to chemicals under the actual usage since this product has not been designed against washing.
Advice for the characteristics
In case that an optical filter is set in front of the emitter and detector portion, the optical filter which has the most efficient transmittance at the emitting wavelength range of LED for this product ( = 870 70nm), shall be recommended to use. Both faces of the filter should be mirror polishing. Also, as there are cases that the characteristics may not be satisfied according to the distance between the protection cover and this product or the thickness of the protection cover, please use this product after confirming the operation sufficiently in actual application. In case that there is an object near to emitter side of the sensor between sensor and a detecting object, please use this device after confirming sufficiently that the characteristics of this sensor do not change by the object. When the detector is exposed to the direct light from the sun, tungsten lamp and so on, there are cases that it can not measure the distance exactly. Please consider the design that the detector is not exposed to the direct light from such light source. Distance to a mirror reflector can not be sometimes measured exactly. In case of changing the mounting angle of this product, it may measure the distance exactly. In case that reflective object has boundary line which material or color etc. are excessively different, in order to decrease deviation of measuring distance, it shall be recommended to set the sensor that the direction of boundary line and the line between emitter center and detector center are in parallel.

(Incorrect)

(Correct)
In order to decrease deviation of measuring distance by moving direction of the reflective object, it shall be recommended to set the sensor that the moving direction of the object and the line between emitter center and detector center are vertical. (Incorrect) (Correct)

(Moving direction)

Advice for the power supply Notes on handling
In order to stabilize power supply line, we recommend to insert a by-pass capacitor of 10F or more between Vcc and GND near this product.
There are some possibilities that the internal components in the sensor may be exposed to the excessive mechanical stress. Please be careful not to cause any excessive pressure on the sensor package and also on the PCB while assembling this product.

Presence of ODC etc.

This product shall not contain the following materials. And they are not used in the production process for this product. Regulation substances : CFCs, Halon, Carbon tetrachloride, 1.1.1-Trichloroethane (Methylchloroform) Specific brominated flame retardants such as the PBB and PBDE are not used in this product at all. This product shall not contain the following materials banned in the RoHS Directive (2002/95/EC). Lead, Mercury, Cadmium, Hexavalent chromium, Polybrominated biphenyls (PBB), Polybrominated diphenyl ethers (PBDE).

Package specification

Package composition
Pad (2 sheeets/case: top and bottom) Product Tray put products (10-tray/case) Pad (10 sheeets/case)

Tray (Fig.2)

Packing case

Craft tape (Fig.1)

(Fig.3)

Model No. Quantity Date

Packaging method 1.Put products of 100pcs. in tray. packing method is showed in the above fig.(Fig.1)
2.Put them(10-tray) in the packing box. Put pads on their top and bottom. And put pads on each trays(Total 10 sheets) (Fig.2). 3.Seal the packing box with craft tape. Print the model No.,quantity,inspection date (1000 pcs./a packing box)(Fig.3).

Important Notices

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). If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign Exchange and Foreign Trade 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.