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| GP2Y0A21YK/GP2Y0D21YK I Features GP2Y0A21YK/ GP2Y0D21YK General Purpose Type Distance Measuring Sensors I Outline Dimensions (Unit : mm) 1. Less influence on the color of reflective objects, reflectivity 2. Line-up of distance output/distance judgement type Distance output type (analog voltage) : GP2Y0A21YK Detecting distance : 10 to 80cm Distance judgement type : GP2Y0D21YK Judgement distance : 24cm (Adjustable within the range of 10 to 80cm [Optionally available]) 3. External control circuit is unnecessary 4. Low cost 4.5 3.2 hole R3.75 3.75 # 37 29.5 # 200.1 Light detector side 6.3 R3.75 2 +0.5 18.9-0.3 Lens case 8.4 7.2 3.2 hole Connector 1.2 Made by 3.3 J.S.T. MFG, CO., LTD. S3B-PH 2-1.5 13.5 Light emitter side 10.1 13 I Applications 1. TVs 2. Personal computers 3. Cars 4. Copiers 7.5 PWB 14.75 4.15 16.3 1 3 I Absolute Maximum Ratings Parameter Supply voltage Output terminal voltage Operating temperature Storage temperature Terminal connection The dimensions marked # are described the dimensions of lens center position. Unspecified tolerance : 0.3mm 1 2 3 (Ta=25C, VCC=5V) Symbol Rating Unit VCC -0.3 to +7 V VO -0.3 to VCC +0.3 V Topr -10 to +60 C Tstg -40 to +70 C 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://sharp-world.com/ecg/ GP2Y0A21YK/GP2Y0D21YK I Recommended Operating Conditions Parameter Operating supply voltage Symbol VCC Rating 4.5 to +5.5 Unit V (Ta=25C, VCC=5V) MAX. Unit 80 cm V 0.55 V - V 0.6 V 2.15 27 40 cm mA I Electro-optical Characteristics Symbol Parameter L Distance measuring range VO GP2Y0A21YK Output terminal voltage VOH GP2Y0D21YK VOL Difference of output voltage GP2Y0A21YK VO Distance characteristics VO GP2Y0D21YK of output Average Dissipation current ICC Conditions *1 *3 MIN. 10 0.25 VCC -0.3 - 1.65 21 L=80cm *1 Output voltage at High *1 Output voltage at Low*1 Output change at L=80cm to 10cm*1 *1 *4 *2 *1 TYP. - 0.4 - - 1.9 24 30 L=80cm - 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=24cm3cm 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 GP2Y0A21YK GND VCC 5V Fig.2 Internal Block Diagram GP2Y0D21YK GND VCC 5V PSD Signal processing circuit Voltage regulator Oscillation circuit LED drive circuit LED Output circuit Vo Analog output PSD Signal processing circuit Voltage regulator Oscillation circuit LED drive circuit LED Output circuit VCC 12k VO Digital output Distance measuring IC Distance measuring IC Fig.3 Timing Chart VCC (Power supply) 38.3ms9.6ms Distance measuring operation VO (Output) Second measurment nth measurment First measurment Unstable output First output 5.0ms MAX. Second output nth output (GP2Y0A21YK) 7.6ms1.9msTYP.(GP2Y0D21YK) GP2Y0A21YK/GP2Y0D21YK Fig.4 Distance Characteristics GP2Y0D21YK Output H Output (V) (Detection) H L Hystersis width Output L L H 30 35 40 (Non detection) 45 50 55 60 65 70 75 80 0 5 10 15 20 25 Output switching point distance L=243cm Distance to reflective object L (cm) Fig.5 Analog Output Voltage vs. Distance to Reflective Object 3.5 3 Analog output voltage VO (V) 2.5 2 1.5 1 0.5 0 GP2Y0A21YK White paper (Reflective ratio:90%) Gray paper (Reflective ratio:18%) 0 10 20 30 40 50 60 70 80 Distance to reflective object L (cm) NOTICE q 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). q q q 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. q q q |
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