IS471F IS471F OPIC Light Detector with Built-in Signal Processing Circuit for Light Modulation System ■ Features ■ Outline Dimensions 1. Impervious to external disturbing lights due to light modulation system 2. Built-in pulse driver circuit and sync. detector circuit on the emitter side 3. A wide range of operating supply voltage ( VCC: 4.5 to 16V ) ( Unit : mm ) Internal connection diagram Voltage regulator Comparator 1 Sync. detector 2 circuit Demodulator circuit 4 Amp. Oscillator 1.8 ± 0.2 Visible light 4˚ cut-off black epoxy resin 4˚ Lustered face 0.45 2.5 4˚ 4˚ 2.0 0.95 1.27 0.6MAX. 2.5 ± 0.2 17.6 ± 1.0 4- 0.45 0.4 +0.2 - 0.1 P P P P = 1.27mm 15.5 ±1.0 4.4 ± 0.2 1. Optoelectronic switches 2. Copiers, printers 3. Facsimiles φ 0.8 2- C0.5 0.3MAX. 1.0MAX. ■ Applications 2.5 ± 0.2 1.8 1.7 ± 0.3 Detector center 3 P 1 2 3 4 6˚ 6˚ 1 2 3 4 2 3 1 4 6˚ 6˚ V CC VO GND GL out 2.5 *“OPIC ” ( Optical IC ) is a trademark of the SHARP Corporation. An OPIC consists of a light-detecting element and signalprocessing circuit integrated onto a single chip. ■ Absolute Maximum Ratings Parameter Supply voltage Output voltage Output Output current *1 GL output Output voltage Power dissipation Operating temperature Storage temperature *2 Soldering temperature Symbol V CC VO IO VGL P T opr T stg T sol ( Ta= 25˚C) Rating - 0.5 to 16 16 50 16 250 - 25 to + 60 - 40 to +100 260 Unit V V mA V mW ˚C ˚C ˚C Resin portion Soldering portion (Immersed up to bending portion ) *1 Applies to GL out terminal *2 For 5 seconds at the position shown in the right figure “ 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. ” IS471F ■ Electro-optical Characteristics Parameter Operating supply voltage Supply current Low level output voltage Output High level output voltage Output short circuit current Low level output current GL *4 Pulse cycle output *4 Pulse width *5 “ Low→High ” threshold irradiance *5 “ High→Low ” threshold irradiance Hysteresis “ High→Low” Response propagation delay time “ Low→High” time propagation dealy time *7 External disturbing light illuminance ( VCC= 5V, Ta= 25˚C ) Symbol V CC I CC V OL V OH I OS I GL tp tW E ePLH E ePHL E ePLH /E ePHL t PHL t PLH E VDX Conditions V O, GL out terminals shall be opened. IOL = 16mA, E VP = 500lx, E VD = 0*3 E VD = E VP = 0*3 E VP = E VD = 0*3 V GL = 1.2V E eD = 0*3 Light emitting diode ( λ p= 940nm ) *6 *6 *6 Eep= 7.5 µ W/mm 2, *3 λ p= 940nm MIN. 4.5 4.97 0.25 40 70 4.4 0.45 2000 TYP. 3.5 0.15 0.5 55 130 8 0.4 0.7 0.65 400 400 7500 MAX. 16 7.0 0.35 1.0 70 220 13.7 2.66 2.8 0.95 670 670 - Unit V mA V V mA mA µs µs µ W/mm 2 µ W/mm 2 µs µs lx *3 E eP represents illuminance of signal light in sync with the low level timing of output at GLout terminal. E eD represents illuminance of DC light. For detail, see Fig. 1. Light source: Infrared light emitting diode ( λ p= 940nm ) E VP represents illuminance of signal light in sync with the low level timing of output at GLout terminal. E VD represents illuminance of DC light. Note that the light source is CIE standard light source A. Fig.1 EeP EeD Ee Time 0 ( Note ) Fig. 1 shows the output waveform at GL out terminal with IS471F connected as shown in Fig. 3. Output waveform at GL out terminal *4 Pulse cycle (t P) , pulse width (t W) are defined as shown in Fig. 2. The waveform shown in Fig. 2 is the output voltage waveform at GLout terminal with IS471F connected as shown in Fig. 3 Fig.2 Fig.3 5V 0V tW tP *5 Defined as Eep that causes the output to go“ Low to High” ( or“ High to Low” ) . VCC 1 VO 2 GLout IS471F 4 GND 3 280Ω 0.33 µF 5V IS471F *6 Test circuit for response time, threshold irradiance is shown in Fig. 4. Fig. 4 Vin OFF VCC Light emitting diode 1 2 VO 280Ω Switch ON IS471F 5V 0.33 µF Switch 4 3 t PHL t PLH GND VOH GLout Output 1.5V VOL Light emitting diode : peak emission wavelengh λ P = 940nm *7 E VDX : Defined as the E VD at the limit of normal operation range. Fig. 6 Low Level Output Voltage vs. Low Level Output Current 300 1 250 0.5 Low level output voltage V OL ( V ) Power dissipation P ( mW ) Fig. 5 Power Dissipation vs. Ambient Temperature 200 150 100 50 0 - 25 V CC = 5V T a = 25˚C 0.2 0.1 0.05 0.02 0.01 0 25 50 60 75 100 1 125 2 Ambient temperature Ta ( ˚C ) 5 10 Fig. 7 Low Level Output Voltage vs. Ambient Temperature 50 20 Low level output current I OL 100 ( mA ) Fig. 8 Supply Current vs. Supply Voltage 0.6 8 0.5 7 Supply current I cc ( mA ) Low level output voltage V OL ( V ) V CC = 5V 0.4 0.3 I OL = 30mA 0.2 16mA T a =- 25˚C 6 25˚C 5 60˚C 4 3 0.1 5mA 0 - 25 2 0 25 50 75 Ambient temperature Ta ( ˚C ) 100 0 2 4 6 8 10 12 Supply voltage Vcc ( V ) 14 16 IS471F Fig.10 Sensitivity Diagram ( Ta = 25˚C ) Fig. 9 Low Level Output Current vs. Supply Voltage -20˚ -10˚ 0˚ - 30˚ T a =-25˚C 60 25˚C 50 - 40˚ 60˚C 40 - 50˚ 30 (%) 70 +20˚ +30˚ 80 60 +40˚ 40 +50˚ +60˚ - 60˚ 20 20 - 70˚ 10 0 +10˚ 100 Relative sensitivity Low level output current I OL ( mA ) 80 +70˚ +80˚ - 80˚ 2 4 6 8 10 12 Supply voltage V cc 14 16 +90˚ - 90˚ 18 0 Angular displacement θ (V) Fig.11 Spectral Sensitivity 100 T a = 25˚C 90 Relative sensitivity ( % ) 80 70 60 50 40 30 20 10 0 400 500 600 700 800 900 1000 1100 1200 1300 1400 Wavelength λ ( nm ) ■ Basic Circuit Voltage regulator Infrared light emitting diode Comparator Sync.detector circuit Demodulator circuit Amp. Oscillator ❈ In order to stabilize power supply line, connect a by-pass capacitor of 0.33µ F or more between Vcc and GNP near the device. ● Please refer to the chapter “Precautions for Use.” V cc ( Power supply) Vo ( Signal output) ❈ C = 0.33 µ F 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