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| GP1A33R GP1A33R s Features 1. 2-phase ( A, B ) digital output 2. Capable of using plastic disk 3. Sensing accuracy ( Disk slit pitch: 1.14mm ) 4. TTL compatible 5. Compact and light OPIC Photointerruper with Encoder Function s Outline Dimensions ( Unit: mm ) Internal connection diagram 0.1 1 2 OPIC 6 5 4 3 OPIC 4 GND 5 V CC 6 V OA 8.0 6.0 GP1A33R 2- 2.0 0.8 0.15 2.0 0.15 12.0 7.5 0.1 1 Anode 2 Cathode 3 V OB 4 - R2.5 1.4 0.15 4.0 0.15 6.4 0.15 s Applications 10.5MIN. 8.0MIN. 4.4 1. Electronic typewriters, printers 2. Numerical control machines (7.25) 2 (2.54) 3 (1.27) 4 3 - (1.27) 2.5 0.15 4- R1.3 0.15 15.0 0.15 20.0 * 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 Absolute Maximum Ratings Parameter Forward current *1 Peak forward current Input Reverse Voltage Power dissipation Supply voltage Low level output current Output Power dissipation Operating temperature Storage temperature *2 Soldering temperature *1 Pulse width<=100 s, Duty ratio= 0.01 *2 For 5 seconds ( Ta= 25C ) Symbol IF I FM VR P V CC IOL PO Topr Tstg Tsol Rating 65 1 6 100 7 20 250 0 to + 70 - 40 to + 80 260 Unit mA A V mW V mA mW C C C " 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." 6.4 11.4 9.9 GP1A33R 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 DA*5 DB*5 f MAX. ( Unless otherwise specified, Ta = 0 to + 70C ) Conditions Ta= 25C, I F = 30mA Ta= 25C, VR= 3V 5V, I F = 30mA IOL= 8mA, VCC = 5V, IF = 30mA *3*4 IF = 30mA, VCC= 5V *3 VCC= *3 *3 Output Transfer characteristics V CC = 5V, IF = 30mA, f=2.5kHz *3 V CC = 5V, IF = 30mA 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 Unit V A V V V mA % % kHz *3 Measured under the condition shown in Measurement Condition. *4 In the condition that output A and B are low level. t t *5 D A= t AH x 100, D B = t BH x 100 BP AP 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 T a ( C) Fig. 2 Output Power Dissipation vs. Ambient Temperature 300 250 200 Output power dissipation PO ( mW ) 150 100 50 0 0 25 50 70 75 100 Ambient temperature T a ( C) GP1A33R 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 Phase difference ABI ( deg. ) T a = 25C t AH ( ) t AP Output A 120 110 100 90 80 70 60 50 ABI = t ABI t AP x 360 Fig. 4 Phase Difference vs. Frequency Temperature 130 VCC = 5V I F = 30mA T a = 25C 1 2 5 Frequncy f ( kHz ) 10 20 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 ) t AH t AP ( Output A) t BH t BP ( Output B) VCC = 5V I F = 30mA f = 2.5kHz Fig. 6 Phase Difference vs. Ambient Temperature 140 130 Phase difference AB1 ( deg. ) 120 110 100 90 80 70 60 50 40 0 25 50 75 Ambient temperature Ta ( C ) 100 t AB1 AB1 =x t AP 360 VCC = 5V IF = 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 - 0.5 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 AB1 t AP x 360 VCC = 5V I F = 30mA f= 2.5kHz T a = 25C Reference position (-) (+) GP1A33R 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 ) GP1A33R Fig. 9 Duty Ratio vs. Distance ( Y direction ) 0.9 0.8 0.7 0.6 Duty ratio 0.5 0.4 0.3 0.2 0.1 - 1.0 - 0.5 t AH t AP t BH t BP VCC = 5V I F = 30mA f= 2.5kHz T a = 25C ( Output A ) ( Output B ) Fig.10 Phase Difference vs. Distance ( Y direction ) 130 120 Phase difference AB1 ( deg. ) 110 100 90 GP1A33R (+) 70 (-) 60 Disk Reference position 1.0 0.8 80 AB1 = t AB1 x 360 t AP V CC = 5V I F = 30mA f= 2.5kHz T a = 25C 0 0.5 1.0 50 - 1.0 - 0.5 0 0.5 Distance Y ( mm ) ( Shifting encoder ) Distance Y ( mm ) ( Shifting encoder ) Fig.11 Duty Ratio vs. Distance ( Z direction ) 0.9 0.8 0.7 0.6 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 ) VCC = 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 ) 130 120 Phase difference AB1 ( deg. ) 110 100 90 80 ( Detecting side) 70 60 ( Emitting side ) 50 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Z OPIC Disk AB1 = t AB1 x 360 t AP VCC = 5V I F = 30mA f = 2.5kHz T a = 25C Duty ratio Distance Z ( mm ) ( Shifting encoder ) GP1A33R 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 ) R O= 15 20 GP1A33R 4-R1.3 10 R 3 8 N 60 .8 9 x 10.89 ( mm ) N: number of slits P= 2x p x RO ( mm ) N 1.4 Disk center 6.4 S2 (15.825) 11.4 Disk 0.5 f 26.48, 0.1t 60 slits 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. 12 Enlarged drawing of A portion Slit pitch : P A 9.9 P r1 r1= r2 Disk center r2 S1 (9.125) ( Ex. ) In the case of N= 100P/R 100 R O= x 10.89 ( mm ) 60 = 18.15mm 2x p x 18.15 P= 100 = 1.14mm S 1= 18.15- 1.765 = 16.385mm S 2= 16.385+ 6.7 = 23.085mm s Precautions for Use ( 1 ) This module is designed to be operated at I F = 30mA TYP. ( 2 ) Fixing torque : MAX. 0.6N * m ( 3 ) In order to stabilize power supply line, connect a by-pass capacitor of more than 0.01 F between Vcc and GND near the device. ( 4 ) As for other general cautions, refer to the chapter " Precautions for Use " . 0.8 2 4 7.5 |
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