GP2A25 GP2A25 Light Modulation, Reflection Type Photointerrupter ■ Features ■ Outline Dimensions 1. Light modulation system impervious to external disturbing light 2. Compact and 3-pin connector output type Optical center 33 17.7 3.1 7.8 4.5 3 9 (Volume : 30% less than GP2A20) 3. Long focal distance type (Optimum detecting distance : 3 to 7 mm) 4. Capable of TTL direct connection φ 3.2 (Unit : mm) 2 6 12 1 Connector JAPAN AMP made 175768-3 2.5 2 8 4.5 6.2 ■ Applications φ 3 26.5 1. Copiers 2. Facsimiles 3. LBPs 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. ■ Absolute Maximum Ratings Parameter Supply voltage Output voltage Output current Operating temperature Storage temperature Symbol Rating V CC - 0.5 to+ 7 30 VO 50 I OL - 10 to+ 60 T opr T stg - 20 to+ 80 (Ta=25˚C) Unit V V mA ˚C ˚C Remarks Sink current *1 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 ■ Electro-optical Characteristics Parameter Supply voltage Dissipation current (I) Dissipation current (II) Low level output voltage High level output voltage Non-detecting distance (Vcc=5V, Ta=25˚C) Symbol V CC I CC ICCP V OL V OH Conditions VCC = 5V, R L= , smoothing value 5V, peak pulse value *1 V = CC VCC =5V, I OL =16mA, at detecting time VCC =5V, R L =1kΩ , at non-detecting time *2 Kodak 90% reflective paper, V CC =5V L LHL *2 Kodak 90% reflective paper, VCC =5V Black paper, VCC =5V *2 Kodak 90% reflective paper, VCC =5V *2 Black paper, V CC =5V L HLS *2 Detecting distance L HLL tPHL tPLH EV1 EV2 Response time External disturbing light illuminance *3 VCC = 5V *4 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 - 1.0 1.0 - Unit V mA mA V V mm mm mm mm mm ms ms lx lx *1 Test Condition for Peak Pulse Value I CCP R= 1Ω VCC= 5V V Vr RL = 1kΩ GP2A25 tW VO ICCP= Vr /1Ω t W( TYP.) = 8µ s t P( TYP.) = 130 µs tP GND *2 Test Condition for Detecting Distance Characteristics GP2A25 Output V O Reflective object VOH V OL Detecting distance L LHLS LHLL Detection surface LLHS LLHL *3 Test Circuit for Response Time Reflective object : Kodak 90% reflective paper Detection surface With reflective object RL = 1kΩ VCC = 5V GP2A25 VO Without reflective object tPHL tPLH VOH GND Vout waveform 1.5V VOL L *4 Test Condition for External Disturbing Light Illuminance EV1 : At non-detecting time EV2 : At detecting time Emission/detection surface Emission/detection surface Light source A Illuminance shall be that on the emission/detection surface. Output shall not go from "H" to "L". PPC paper Light source A Illuminance shall be that on the reflective object. Output shall not go from "L" to "H". 7mm GP2A25 Fig. 2 Low Level Output voltage vs. Ambient Temperature Fig. 1 Low Level Output Current vs. Ambient Temperature 0.3 Low level output voltage V OL ( V) 50 Low level output current I OL ( mA) 60 40 30 27 20 10 0 - 10 0 25 50 60 VCC=5V At detecting time IOL= 30mA 0.2 16mA 0.1 5mA 0 - 10 75 0 Fig. 3 Low Level Output Voltage vs. Low Level Output Current 7 0.5 0.4 VCC=5V At detecting time 0.3 ( mA) 6 Ta=- 10˚C 5 CC 0.2 0.1 0.05 0.04 0.03 0.02 0.01 75 Fig. 4 Dissipation current (Smoothing Value) vs. Ambient Temperature Dissipation current I Low level output voltage V OL ( V) 50 60 25 Ambient temperature Ta (˚C) Ambient temperature Ta (˚C) 25˚C 4 60˚C 3 2 1 1 2 3 4 5 10 20 30 4050 100 0 4.75 Low level output current I OL ( mA) 5.0 5.25 Supply voltage V CC ( V) (Precautions for Use) 1) In order to stabilize power supply line, connect a by-pass capacitor of more than 0.33µ 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. ● As for other general precautions, refer to the chapter "Precautions for Use".