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| GP1A30R GP1A30R s Features 1. 2-phase ( A, B ) digital output 2. Possible to use plastic disk 3. High sensing accuracy ( Disk slit pitch : 0.7mm ) 4. TTL compatible output 5. Compact and light OPIC Photointerrupter with Encoder Function s Outline Dimensions 1 2 1 Anode 2 Cathode 3 V OB 4 - R2.5 1.4 0.15 8.0 6.0 GP1A30R 11.4 OPIC ( Unit : mm ) 6 5 4 3 OPIC 4 GND 5 V CC 6 V OA Internal connection diagram 2- 2.0 0.1 0.8 0.15 2.0 0.15 12.0 7.5 0.1 s Applications 1. Electronic typewriters, printers 2. Numerical control machines 4 0.15 6.4 0.15 10.5MIN. 9.9 8.0MIN. 4.4 2.5 0.15 4 - R1.3 0.15 s Absolute Maximum Ratings Parameter Forward current *1 Peak forward current Input Reverse voltage Power dissipation Supply voltage Output Low level output current Power dissipation Operating temperature Storage temperature *2 Soldering temperature *1 Pulse width <= 100 s, Duty ratio= 0.01 ( Ta= 25C ) 2 (7.25) 3 (1.27) 4 3 - (1.27) 15.0 0.15 20.0 Symbol Rating Unit IF 65 mA I FM 1 A 6 V VR P 100 mW VCC 7 V IOL 20 mA 250 mW PO 0 to + 70 C Topr Tstg - 40 to + 80 C Tsol 260 C *2 For 5 seconds (2.54) * Tolerance : 0.3mm * ( ) : Reference dimensions 1 5 6 *" 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. s Electro-optical Characteristics Input Parameter Forward voltage Reverse current Operating supply voltage High level output voltage Low level output voltage Supply current Duty ratio Response frequency Symbol VF IR VCC VOH VOL ICC *5 DA *5 DB f MAX. ( Unless otherwise specified, Ta = 0 to + 70C ) Conditions Ta= 25C, I F = 30mA Ta= 25C, V R= 3V VCC= 5V, I F = 30mA IOL = 8mA, V CC = 5V, I F = 30mA *3*4 IF= 30mA, V CC= 5V VCC= 5V, I F = 30mA, *3 f= 2.5kHz *3 VCC= 5V, I F = 30mA *3 *3 Output Transfer characteristics MIN. 4.5 2.4 20 20 - TYP. 1.2 5.0 4.9 0.1 5 50 50 - MAX. 1.5 10 5.5 0.4 20 80 80 5 6.4 Unit V A V V V mA % % kHz *3 Measured under the condition shown in Measurement Conditions. *4 In the condition that output A and B are low level. *5 t AH t BH x 100 DA = x 100, DB = t AP t BP " 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." GP1A30R s Output Waveforms Output A ( VOA) t AH t AP Output B ( VOB) t AB1 t BH t BP Rotational direction: Counterclockwise when seen from OPIC light detector Fig. 1 Forward Current vs. Ambient Temperature 100 90 80 Forward current I F ( mA ) 70 65 60 50 40 30 20 10 0 0 25 50 70 75 100 Ambient temperature Ta ( C ) Fig. 2 Output Power Dissipation vs. Ambient Temperature 300 Output power dissipation Po ( mW ) 250 200 150 100 50 0 0 25 50 70 75 100 Ambient temperature Ta ( C ) Fig. 3 Duty Ratio vs. Frequency 0.9 VCC = 5V 0.8 0.7 0.6 Duty ratio 0.5 0.4 0.3 0.2 0.1 1 2 5 Frequency f ( kHz ) 10 20 t BH ( ) t BP Output B I F = 30mA Fig. 4 Phase Difference vs. Frequency 130 V CC = 5V 120 Phase difference AB1 ( deg. ) 110 100 90 80 70 60 50 AB1 =x I F = 30mA T a = 25C t ABI 360 t AP T a = 25C t AH t AP ( Output A ) 1 2 5 Frequency f ( kHz ) 10 20 GP1A30R Fig. 5 Duty Ratio vs. Ambient Temperature 1.0 0.9 0.8 0.7 Duty ratio 0.6 0.5 0.4 0.3 0.2 0.1 0 0 25 50 75 100 Ambient temperature Ta ( C ) V CC = 5V I F = 30mA f = 2.5kHz t AH t AP ( Output A ) t BH ( Output B ) t BP Phase difference AB1 ( deg. ) Fig. 6 Phase Difference vs. Ambient Temperature 140 130 120 110 100 90 80 70 60 50 40 0 25 50 75 Ambient temperature Ta ( C ) 100 AB1 = t AB1 x 360 t AP V CC = 5V I F = 30mA f = 2.5kHz Fig. 7 Duty Ratio vs. Distance ( X direction ) 0.9 0.8 0.7 0.6 Duty ratio 0.5 0.4 0.3 0.2 0.1 - 1.0 t AH t AP t BH t BP V CC = 5V I F = 30mA f= 2.5kHz T a = 25C ( Output A ) ( Output B ) Fig. 8 Phase Difference vs. Distance ( X direction ) 130 120 Phase difference AB1 ( deg. ) 110 100 90 80 70 60 Disk AB1= t ABI x 360 t AP Reference position (- ) ( +) GP1A30R V CC = 5V I F = 30mA f= 2.5kHz Ta = 25C - 0.5 0 0.5 1.0 50 - 1.0 - 0.5 0 0.5 1.0 Distance X ( mm ) ( Shifting encoder ) Distance X ( mm ) ( Shifting encoder ) Fig. 9 Duty Ratio vs. Distance ( Y direction ) 0.9 0.8 0.7 Duty ratio 0.6 0.5 0.4 0.3 0.2 0.1 - 1.0 - 0.5 t AH ( Output A ) t AP t BH ( Output B ) t BP V CC = 5V I F = 30mA f= 2.5kHz T a = 25C Fig.10 Phase Difference vs. Distance ( Y direction ) 130 120 Phase difference AB1 ( deg. ) 110 100 90 GP1A30R 80 70 60 Disk (+) Reference position (-) VCC = 5V I F = 30mA f= 2.5kHz T a = 25C AB1 = t AB1 x 360 t AP 0 0.5 1.0 50 - 1.0 - 0.5 0 0.5 1.0 Distance Y ( mm ) ( Shifting encoder ) Distance Y ( mm ) ( Shifting encoder ) GP1A30R Fig.11 Duty Ratio vs. Distance ( Z direction ) 0.9 0.8 0.7 0.6 Duty ratio 0.5 0.4 0.3 0.2 0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Distance Z ( mm ) ( Shifting encoder ) V CC = 5V I F = 30mA f= 2.5kHz T a = 25C t AH ( Output A ) t AP t BH ( Output B ) t BP Fig.12 Phase Difference vs. Distance ( Z direction ) 130 VCC = 5V I = 30mA 120 F f= 2.5kHz T = 25C 110 a 100 90 80 70 60 ( Emitting side ) 50 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Z ( Detecting side ) Disk OPIC AB1 = t AB1 t AP x 360 Phase difference AB1 ( deg. ) Distance Z ( mm ) ( Shifting encoder ) s Measurement Conditions A R O ( distance between the disk center and half point of a slit ) , P ( slit pitch ) , S 1 and S 2 ( installing position of photointerrupter ) will be provided by the following equations. Slit pitch : P ( slit center ) N R O= 120 x 13.45 ( mm ) N: number of slits 2x p x RO ( mm ) N S 1= R O- 1.765 ( mm ) , S 2= S 1+ 6.7( mm ) Note ) When the number of slits is changed, values in parenthesis are also changed according to the number. P= 4-R1.3 13 R .4 8 3 5 15 1.4 Disk center S2 (18.385) 6.4 Disk 31.6, 0.1t 120 slits 0.3 11.4 Enlarged drawing of A portion Slit pitch : P 20 GP1A30R ( Ex. ) In the case of N= 200P/R R O= 200 x 13.45 ( mm ) 120 = 22.42mm 0.8 2 S1 (11.685 ) 9.9 P r2 r1= r2 Disk center r1 A 4 7.5 12 s Precautions for Use ( 1 ) This module is designed to be operated at I F = 30mA TYP. ( 2 ) Fixing torque : MAX. 0.6Nm (6kgf * cm ) ( 3 ) In order to stabilize power supply line, connect a by-pass capacitor of more than 0.01F between Vcc and GND near the device. ( 4 ) As for other general cautions, refer to the chapter " Precautions for Use " . 2 x p x 22.42 ( mm ) 200 = 0.704mm S 1= 22.42- 1.765 = 20.655mm S 2= 20.655+ 6.7 = 27.355mm P= |
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