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| GP2A25 GP2A25 s Features 1. Light modulation system impervious to external disturbing light 2. Compact and 3-pin connector output type (Volume : 30% less than GP2A20) 3. Long focal distance type (Optimum detecting distance : 3 to 7 mm) 4. Capable of TTL direct connection Light Modulation, Reflection Type Photointerrupter s Outline Dimensions 3.2 33 3.1 4.5 17.7 3 7.8 9 (Unit : mm) Optical center 2 6.2 6 12 1 Connector JAPAN AMP made 175768-3 8 4.5 s Applications 1. Copiers 2. Facsimiles 3. LBPs 2.5 2 3 26.5 Internal connection diagram Amp. Comparator Constant voltage circuit Demodulator circuit 3 2 1 Sync. detector circuit Oscillator circuit 1 VCC 2 VO 3 GND * "OPIC" (Optical IC) is a trademark of the SHARP Corporation. An OPIC consists of a light-detecting element and signal-processing circuit integrated onto a single chip. s Absolute Maximum Ratings Parameter Supply voltage Output voltage Output current Operating temperature Storage temperature Symbol Rating VCC - 0.5 to+ 7 30 VO 50 IOL - 10 to+ 60 T opr T stg - 20 to+ 80 Unit V V mA C C Remarks Sink current *1 (Ta=25C) The connector should be plugged in/out at normal temperature. *1 Output current vs. ambient temperature : Per Fig. 1. " 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." GP2A25 s Electro-optical Characteristics Parameter Supply voltage Dissipation current (I) Dissipation current (II) Low level output voltage High level output voltage Non-detecting distance Symbol VCC I CC ICCP V OL V OH L LHL L HLS Detecting distance L HLL Response time External disturbing light illuminance tPHL tPLH EV1 EV2 Conditions *1 VCC= (Vcc=5V, Ta=25C) MIN. 4.75 4.5 9.0 7.0 3 000 1 500 TYP. MAX. 5.25 30 150 0.4 27.0 1.0 3.0 - VCC= 5V, R L= , smoothing value 5V, peak pulse value VCC =5V, I OL =16mA, at detecting time VCC =5V, R L =1k , at non-detecting time *2 Kodak 90% reflective paper, V CC =5V *2 Kodak *2 Unit V mA mA V V mm mm mm mm mm ms ms lx lx 90% reflective paper, VCC =5V Black paper, VCC =5V *2 Kodak 90% reflective paper, VCC =5V *2 Black paper, V CC =5V *3 VCC= 5V *4 1.0 1.0 - *1 Test Condition for Peak Pulse Value I CCP R= 1 VCC= 5V V GP2A25 RL = 1k VO GND tW tP ICCP= Vr /1 t W( TYP.) = 8 s t P( TYP.) = 130 s Vr *2 Test Condition for Detecting Distance Characteristics Output V O Reflective object VOH V OL Detecting distance L LHLS LHLL LLHS LLHL GP2A25 Detection surface *3 Test Circuit for Response Time Reflective object : Kodak 90% reflective paper Detection surface RL = 1k VCC = 5V GP2A25 VO GND Vout waveform L tPHL tPLH VOH 1.5V VOL Without reflective object With reflective object *4 Test Condition for External Disturbing Light Illuminance EV1 : At non-detecting time EV2 : At detecting time PPC paper Emission/detection surface Emission/detection surface Light source A Light source A Illuminance shall be that on the emission/detection surface. Output shall not go from "H" to "L". Illuminance shall be that on the reflective object. Output shall not go from "L" to "H". 7mm GP2A25 Fig. 1 Low Level Output Current vs. Ambient Temperature 60 Fig. 2 Low Level Output voltage vs. Ambient Temperature 0.3 VCC=5V At detecting time IOL= 30mA 0.2 ( mA) 50 Low level output current I 40 30 27 Low level output voltage V OL ( V) OL 16mA 0.1 5mA 20 10 0 - 10 0 25 50 60 75 0 - 10 0 25 50 60 75 Ambient temperature Ta (C) Ambient temperature Ta (C) Fig. 3 Low Level Output Voltage vs. Low Level Output Current 0.5 0.4 VCC=5V At detecting time 0.3 0.2 Fig. 4 Dissipation current (Smoothing Value) vs. Ambient Temperature 7 6 Low level output voltage V OL ( V) ( mA) 5 4 3 2 1 0 4.75 Ta=- 10C CC 0.1 Dissipation current I 25C 60C 0.05 0.04 0.03 0.02 0.01 1 2 3 45 10 20 30 4050 100 5.0 5.25 Low level output current I OL ( mA) Supply voltage V CC ( V) (Precautions for Use) 1) In order to stabilize power supply line, connect a by-pass capacitor of more than 0.33 F between VCC and GND near the device. 2) Please do not perform dip cleaning or ultrasonic cleaning because lens part of this product is an optical device of acrylic resin. 3) Remove dust or stains, using an air blower or a soft cloth moistened in cleaning agent. However, do not perform the above cleaning using a soft cloth with cleaning solvent in the marking portion. In this case, use only the following type of cleaning solvent used for wiping off: Ethyl alcohol, Methyl alcohol, Isopropyl alcohol When the cleaning solvents except for specified materials are used, please contact us. q As for other general precautions, refer to the chapter "Precautions for Use". |
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