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| ENCODERS KE2108 KE2108-15/18/30 KE2108ch Photo IC KE2108 series is an encorder module in the shape of trans-mission photointerrupter. Red-pin point LED and photo IC of photodiodes with the specific active area are combined. A position detection system of high quality and high reli-ability can be built easily with this module and down sizing is possible. FEATURES CMOS MAXIMUM RATINGS Item Input Ta25 Symbol Power dissipation Forward current Reverse voltage Supply voltage Power dissipation Low level output current *1 *1 *2 Rating 65 40 3 7 30 4 060 4070 260 Unit mW mA V V mW mA Directly connectable to CMOS Built in comparator circuit of push-pull system 10 Built in degital output and pull-up resistor of 10 The characteristic change possibly caused by the mounting position error would be limited to a minimum range. Vcc=3V PD IF VR VCC P IOL Topr. Tstg. Tsol. Output Operating temp. Storage temp. Soldering temp. Operation voltage:Vcc=3V 150LPI/180LPI/300LPI Resolution: 150LPI/180LPI/300LPI APPLICATIONS Disc drives, Copiers, Facsimile, Printer 1. No icebound or dew 2. mm5s For MAX. 5 seconds at the position of 1mm from the resin edge ELECTRO-OPTICALCHARACTERISTICS Ta25 Item Input A,B Output Forward voltage Peak wavelength Symbol VF P VCC VOL VOH DA DB *3 Conditions IF=20mA IF=20mA Min. 2.7 Vccx0.8 Typ. 1.8 740 50 50 90 Max. 2.2 5.5 0.4 60 60 120 20 Unit. V nm V V V % % deg KHz Operating supply voltage range Low level output voltage High level output voltage Duty ratio VCC=2.7 to 5.5V IF=20mA Gap 0.1 to 0.9mm 40 40 60 Transmission Phase difference fmax Response Frequency 3. No reverce in phase difference The contents of this data sheet are subject to change without advance notice for the purpose of improvement. When using this product, wouldyoupleaserefer to the latest specifications. Apr.2009 ENCODERS KE2108 KE2108-15/18/30 mA 50 40 IF Forward current 30 PIC mW 50 40 PIC P PIC dissipation 30 90 80 DA.DB Duty ratio 70 60 50 40 30 20 DB DA Ta=25 IF=20mA VCC=5V Gap=0.5mm 20 10 0 20 10 0 0 25 50 Ta Ambient temperature 75 100 0 25 50 Ta Ambient temperature 75 100 10 1 10 f Frequency 20 30(KHz 130 120 Phase difference 110 100 90 80 70 60 50 1 10 f Frequency 20 30 KHz Ta=25 IF=20mA VCC=5V Gap=0.5mm 90 80 DA.DB Duty ratio 70 60 50 DB 40 30 20 10 0 25 50 Ta Ambient temperature 75 100 DA IF=20mA VCC=5V Gap=0.5mm 130 120 Phase difference 110 100 90 80 70 60 50 0 25 50 Ta Ambient temperature 75 100 IF=20mA VCC=5V Gap=0.5mm Gap 90 80 DA.DB Duty ratio 70 60 50 40 30 20 10 0 0.3 0.6 GapG Gap 0.9 1.0 mm 1.5 DB DA Ta=25 IF=20mA VCC=5V Gap 130 120 Phase difference 110 100 90 80 70 60 50 0 0.4 0.6 0.8 GapG Gap 1.0 mm Ta=25 IF=20mA VCC=5V 90 80 DA.DB Duty ratio 70 60 50 40 30 20 10 0 10 20 30 40 mA DB DA VCC=5V Gap=0.5mm Ta=25 IF Forward current 130 120 Phase difference 110 100 90 80 70 60 50 0 10 20 30 40 50 mA Ta=25 VCC=5V Gap=0.5mm 90 80 70 Duty ratio 60 50 40 30 20 10 2 3 4 5 6 7 V DB DA Ta=25 IF=20mA Gap=0.5mm 130 120 Phase difference 110 100 90 80 70 60 50 2 3 4 5 6 7 V Ta=25 IF=20mA Gap=0.5mm IF Forward current VCC Supply voltage VCC Supply voltage contents of this data sheet are subject to change without advance notice for the purpose of improvement. When using this product, wouldyoupleaserefer to the latest specifications. The Apr.2009 ENCODERS KE2108 KE2108-15/18/30 .5 2C0 DIMENSIONSUnit : mm 1.5 20.2 15 8.8 6 2- 1.6 2-2.8x4.2 (0.6) 1.8 0.8 Anodemark 3.90.1 1.7 (3.9) 7.8 OPTICAL CENTER 8 7.3 5.71 4-0.45 2-0.4x 0.45 (2.54) 5.4(P1.8 x3) 1 2 3 4 5 6 4R2 .6 Min. 2.3 11.1 1.8 6 5 4 3 2 1 Anode Cathode Vcc GND Vout(A) Vout(B) 360 OUTPUT SIGNAL T1 VOH T2 13 7.8 Unit:mm Scale Design B A phase VOL DISK SLIT Ro(mm) SLIT PITCH P(mm) SLIT CENTER SENSOR L1L2(mm) P B phase Duty=T2/T1x100 A output waveform at figure below A 2min 150/180/300LPI X Gap A 2min-4max X' 0 Scale Ro Ro = P/2 x N P= 25.4/150/180/300 N Slit 20Ro =Linear Scale RRo+4 L1=Ro SLIT L2=L1+4.9 DISK R r2 r1 2mm r1 4mm 2mm r2 (3.9) GAP L2 B L1 PIC LED /A REFERENCE /TOKYO SALES /KYOTO SALES /OVERSEAS URL http://www.kodenshi.co.jp TEL 03-5496-4711 FAX 03-5496-4710 TEL 0774-20-3559 FAX 0774-24-1031 TEL +81-(0)774-24-1138 FAX +81-(0)774-24-1031 The contents of this data sheet are subject to change without advance notice for the purpose of improvement. When using this product, wouldyoupleaserefer to the latest specifications. Apr.2009 |
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