Light modulation photo IC S4282-51, S6809, S6846, S6986, S7136/-10, S10053 Fewer detection errors even under disturbance background light These light modulation photo ICs were developed for optical synchronous detection under disturbance background light. A photodiode, preamplifier, comparator, oscillator, LED driver and signal processing circuit, etc. are all integrated on a monolithic photo IC chip. Optical synchronous type photoreflectors and photointerrupters, which less susceptible to disturbance background light, can be easily configured by just connecting an external LED to this photo IC. Our unique circuit design achieves an allowable background light level of 10000 lx typ. (S4282-51, S6986, S10053) and a minimum detection level of 0.2 μW/mm2 typ. (S6809, S6846, S7136/-10). Features Applications Large allowable background light level S4282-51, S6986, S10053: 10000 lx typ. S6809, S6846, S7136/-10 : 3000 lx typ. Paper detection in office machine (copiers, fax machines, etc.) Minimum detection level S4282-51, S6986, S10053: 0.7 μW/mm2 typ. S6809, S6846, S7136/-10 : 0.2 μW/mm2 typ. Optical switches Digital output (Output appears “L” by light input.) Small hysteresis (S6809) Small SMD package (S10053) Absolute maximum ratings (Ta=25 °C) Parameter Supply voltage Output voltage Output current Cathode output voltage Cathode output current Power dissipation*1 Operating temperature Storage temperature Symbol Vcc Vo Io Vcath Icath P Topr Tstg S4282-51, S6986, S10053 S6809, S6846, S7136/-10 -0.5 to +16 -0.5 to +16 50 -0.5 to +16 70 250 -25 to +60 -40 to +100 Unit V V mA V mA mW °C °C Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum ratings. *1: Power dissipation decreases at a rate of 3.3 mW/°C above Ta=25 °C Products other than the S10053 do not support lead-free soldering. For details on reflow soldering conditions for surface mount types, please contact our sales office. www.hamamatsu.com 1 Light modulation photo IC S4282-51, S6809, S6846, S6986, S7136/-10, S10053 Spectral response (typical example) S4282-51, S6986, S10053 (Ta=25 °C) 100 Relative sensitivity (%) 80 60 40 20 0 400 600 800 1000 1200 Wavelength (nm) KPICB0001EB S6809, S6846, S7136/-10 (Ta=25 °C) 100 Relative sensitivity (%) 80 60 40 20 0 400 600 800 1000 1200 Wavelength (nm) KPICB0002EA 2 Light modulation photo IC S4282-51, S6809, S6846, S6986, S7136/-10, S10053 Electrical and optical characteristics (Ta=25 °C, Vcc=5 V) Parameter Supply voltage Symbol S4282-51, S6986, S10053 Output: built-in pull-up resistor*2 Cathode: constant current drive Min. Typ. Max. 4.5 16 Condition Vcc Icc Low level output voltage VOL IOL=16 mA High level output voltage VOH 4.7 kΩ between Vcc and Vo Cathode Output Current consumption Vo, LED terminals open Low level output voltage Low level output current Pulse cycle Pulse width H→L threshold light level Vcath Icath=40 mA Icath Vcath=1.2 V Hysteresis - Frequency response f Allowable background light level *2: Ex Cathode V - 4 11 - 4 11 mA - 0.2 0.4 - 0.2 0.4 V 4.9 - - V 4.9 - - V - - 0.8 V 35 60 65 4 130 8 220 13.7 65 4 130 8 220 13.7 μs μs - 0.7 2 - 0.2 1.0 μW/mm2 0.45 0.65 0.95 0.5 1.25 - 0.45 0.65 (S6809) 0.5 0.65 0.8 (S6809) 1.25 0.95 0.95 (S6809) - kHz 5000 10000 - 2000 3000 - lx λ=940 nm No background light Signal light: 5 μW/mm2, λp=940 nm Background light: “A” light source Unit 15 Tp Tw EHL S6809, S6846, S7136/-10 Output: open collector*3 Cathode: open collector drive Min. Typ. Max. 4.5 16 mA - Output Vcc Cathode (LED) Vcc 10 k Vout GND GND KPICC0009EA *3: Cathode Output Vcc Vcc Cathode (LED) Vout GND GND KPICC0010EA 3 Light modulation photo IC S4282-51, S6809, S6846, S6986, S7136/-10, S10053 Block diagram and internal functions Constant voltage Vcc Buffer Comparator PD Preamp Vref Signal processing circuit Timing generator Oscillator Vout Output circuit LED Driver Cathode (LED) GND Truth table Input Output level Light on low Light off high KPICC0002EA (a) Oscillator and timing signal generator The oscillator produces a reference oscillation output by charging and discharging the built-in capacitor with constant current. The oscillation output is fed to the timing signal generator, which then creates LED drive pulses and various timing pulses for digital signal processing. (b) LED driver circuit This circuit drives an external LED using the LED drive pulses created by the timing signal generator. The duty cycle is 1/16. (c) Photodiode and preamplifier circuit The photodiode is formed on the same monolithic chip. A photocurrent generated in the photodiode is converted to a voltage by a preamplifier circuit. The preamplifier circuit uses an AC amplifier to expand the dynamic range versus DC or low-frequency background light, without impairing signal detection sensitivity. (d) Capacitive coupling, buffer amplifier and reference voltage generator Capacitive coupling removes low-frequency noise and also cancels the DC offset in the preamplifier. The buffer amplifier boosts the signal up to the comparator level, and the reference voltage generator produces a comparator level voltage. (e) Comparator circuit The comparator circuit has a hysteresis function to prevent chattering caused by small fluctuations in the input light. (f) Signal processing circuit The signal processing circuit consists of a gate circuit and digital integrator circuit. The gate circuit discriminates input pulses during synchronous detection, to prevent operational errors caused by asynchronous background light. Background light which is synchronized with the signal detection timing cannot be eliminated by the gate circuit, but is canceled out by the digital integrator circuit at the latter stage. (g) Output circuit This circuit serves as an output buffer for the signal processing circuit and outputs the signal to an external circuit. 4 Light modulation photo IC S4282-51, S6809, S6846, S6986, S7136/-10, S10053 Dimensional outlines (unit: mm) S6809, S6846, S6986 5.2 ± 0.3 (Including burr) 5° 2.0 (Depth 0.15 max.) 10° 5.2 ± 0.3 (Including burr) 5.0 1.0 (1.0) 2.5 ± 0.2 1.0 (Depth 0.15 max.) 2.0 2.05 ± 0.2 5.0 Center of photosensitive area 0.45 16.5 ± 1.0 (0.8) 0.55 +0.15 0.25 -0.1 1.27 1.27 1.27 (Specified at lead root) 10° 5° 0.7 ± 0.15 Photosensitive surface Vout GND Cathode (LED) Vcc Tolerance unless otherwise noted: ±0.1, ±2° Shaded area indicates burr. Values in parentheses are not guaranteed, but for reference. KPICA0008EC 5 Light modulation photo IC S4282-51, S6809, S6846, S6986, S7136/-10, S10053 S4282-51, S7136 4.6 ± 0.2 (Including burr) 3.1 ± 0.4 5.6 ± 0.2 (Including burr) 5.5 3° 10° 2.54 5.4* 0.7 Center of photosensitive area 0.5 4.5* 1.0 2.0 Photosensitive surface 0.7 ± 0.15 5.75 ± 0.2 0.25 3° 4.5* 7.5 ± 5° Cathode (LED) Vcc Vout GND (Short lead) Tolerance unless otherwise noted: ±0.1, ±2° Shaded area indicates burr. 4.5 ± 0.4 5° Chip position accuracy with respect to package dimensions marked * X≤±0.2 Y≤±0.2 2.0 (Depth 0.15 max.) KPICA0009EB S7136-10 3° 10° 2.54 5.5* Center of photosensitive area 5.6 ± 0.2 (Including burr) 5.4* 4.6 ± 0.2 (Including burr) 0.5 0.6 Index mark 0.7 ± 0.15 1.5 ± 0.4 4.5* 1.5 ± 0.4 1.0 7.5 ± 0.3 2.0 0.7 ± 0.3 Photosensitive surface 0.7 ± 0.3 5° 3° 0.1 ± 0.1 0.25 Cathode (LED) Vcc Vout GND Tolerance unless otherwise noted: ±0.1, ±2° Shaded area indicates burr. Chip position accuracy with respect to package dimensions marked * X≤±0.2 Y≤±0.2 KPICA0034JB 6 Light modulation photo IC S4282-51, S6809, S6846, S6986, S7136/-10, S10053 S10053 1.0 ± 0.4 1.0 ± 0.4 4.0* 3.9 3.4 Mirror area range 3.8 4.2 ± 0.2 (Including burr) 0.8 0.8 0.8 0.8 0.4 Center of photosensitive area 0.3 3.2 ± 0.2 (Including burr) 0.05 0.5 5.0 ± 0.3* 0.45 ± 0.3 0.75 0.45 ± 0.3 2.8 0.1 ± 0.1 0.15 2.4 Mirror area range 2.9 3.0* 1.3 Photosensitive surface Vout (GND) (GND) (GND) GND Cathode (LED) (GND) (GND) (Short lead) (GND) Vcc (GND) terminals should be connected to GND terminal on board. Tolerance unless otherwise noted: ±0.1 Shaded area indicates burr. Chip position accuracy with respect to the package dimensions marked * X≤±0.2 Y≤±0.2 KPICA0076EC 7 Light modulation photo IC S4282-51, S6809, S6846, S6986, S7136/-10, S10053 Measured example of temperature profile with our hot-air reflow oven for product testing (S10053) The S10053 supports lead-free soldering. After unpacking, store it in an environment at a temperature of 30 °C or less and a humidity of 60% or less, and perform soldering within 24 hours. 300 °C 240 °C max. Temperature 220 °C 190 °C 170 °C Soldering 40 s max. Preheat 70 to 90 s Time KPICB0171EA Information described in this material is current as of March, 2013. Product specifications are subject to change without prior notice due to improvements or other reasons. This document has been carefully prepared and the information contained is believed to be accurate. In rare cases, however, there may be inaccuracies such as text errors. Before using these products, always contact us for the delivery specification sheet to check the latest specifications. Type numbers of products listed in the delivery specification sheets or supplied as samples may have a suffix "(X)" which means preliminary specifications or a suffix "(Z)" which means developmental specifications. The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that one year period. However, even if within the warranty period we accept absolutely no liability for any loss caused by natural disasters or improper product use. Copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission. www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184 U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 8152-375-0, Fax: (49) 8152-265-8 France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Thorshamnsgatan 35 16440 Kista, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1 int. 6, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741 China: Hamamatsu Photonics (China) Co., Ltd.: 1201 Tower B, Jiaming Center, No.27 Dongsanhuan Beilu, Chaoyang District, Beijing 100020, China, Telephone: (86) 10-6586-6006, Fax: (86) 10-6586-2866 Cat. No. KPIC1002E08 Mar. 2013 DN 8