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| Product Bulletin OPB685 July 1996 Photologic(R) Optical Flag Switch Types OPB685, OPB686, OPB687, OPB688 Features *Photologic(R) output *Four output options *Mechanical switch replacement *Printed circuit board mounting Description The OPB685 series flag switches consist of an infrared emitting diode and a monolithic integrated circuit, which incorporates a photodiode, a linear amplifier and a Schmitt trigger. A lever arm actuated flag interrupts the light beam switching the output between states that can readily drive logic gates. Customized lever arms and spring torques can be designed for specific applications. The device features TTL/LSTTL compatible logic level output which can drive up to 10 TTL loads over a voltage range from 4.5 V to 16 V. Absolute Maximum Ratings (TA = 25o C unless otherwise noted) Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +100o C Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +100o C Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 sec. with soldering iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240o C Input Diode Forward DC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Peak Forward Current (1s pulse width, 300 pps) . . . . . . . . . . . . . . . . . . . . . . . . 3.0 A Reverse DC Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW(2) Output Photologic(R) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V Duration of Output Short To VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.00 sec Voltage at Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Low Level Output Current (sinking) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 mA Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 mW(3) Notes: (1) RMA flux is recommended. Duration can be extended to 10 sec. max. when flow soldering. (2) Derate linearly 1.33 mW/o C above 25o C. (3) Derate linearly 2.50 mW/o C above 30o C. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 12-56 (972)323-2200 Fax (972)323-2396 Types OPB685, OPB686, OPB687, OPB688 Electrical Characteristics (TA = 25o C unless otherwise noted) SYMBOL Input Diode VF IR VCC IF(+) IF(+)/IF(-) ICCH PARAMETER MIN TYP MAX UNITS 1.6 100 V A V mA TEST CONDITIONS IF = 10 mA VR = 3.0 V Forward Voltage Reverse Current Operating D.C. Supply Voltage LED Positive-Going Threshold Current Hysteresis Ratio High Level Supply Current: Buffer, 10K Pull-up Buffer, Open-Collector Inverter, 10K Pull-up Inverter, Open-Collector Low Level Supply Current: Buffer, 10K Pull-up Buffer, Open-Collector Inverter, 10K Pull-up Inverter, Open-Collector High Level Output Voltage: Buffer, 10K Pull-up Inverter, 10K Pull-up High Level Output Current: Buffer, Open-Collector Inverter, Open-Collector OPB685 OPB686 OPB687 OPB688 OPB685 OPB686 OPB687 OPB688 (5) OPB685 (VCC-1.5) OPB687 (VCC-1.5)(5) Output Photologic(R) Sensor 4.5 0.1 1.05 1.8 1.20 5.0 16.0 10.0 1.60 12.0 mA VCC = 5.0 V VCC = 5.0 V VCC = 16 V, No Load On Output, IF = 10 mA VCC = 16 V, No Load On Output, IF = 0 mA VCC = 16 V, No Load On Output, IF = 0 mA VCC = 16 V, No Load On Output, IF = 10 mA IOH = 100 A, IF = 10 mA IOH = 100 A, IF = 0 mA(4) VCC = 16 V, VOH = 30 V, IF = 10 mA VCC = 16 V, VOH = 30 V, IF = 0 mA VCC = 4.5 V, IOL = 16 mA, IF = 0 mA(4) VCC = 4.5 V, IOL = 16 mA, IF = 10 mA 4.0 12.0 mA mA mA ICCL 5.5 4.0 6.5 5.0 12.0 12.0 12.0 12.0 VOH V V 100 100 0.4 0.4 30 1.0 IOH OPB686 OPB688 A A V V ns s s s s VOL tr, tf tPLH Low Level Output Voltage: Buffer, 10K Pull-up OPB685 Buffer, Open-Collector OPB686 Inverter, 10K Pull-up OPB687 Inverter, Open-Collector OPB688 Output Rise Time, Output Fall Time Propagation Delay, Low-High Buffer, 10K Pull-up Buffer, Open-Collector Inverter, 10K Pull-up Inverter, Open-Collector Propagation Delay, High-Low Buffer, 10K Pull-up Buffer, Open-Collector Inverter, 10K Pull-up Inverter, Open-Collector OPB685 OPB686 OPB687 OPB688 OPB685 OPB686 OPB687 OPB688 2.0 2.0 1.0 VCC = 5 V, IF = 0 or 10 mA, f = 10 kHz, D.C. = 50%, RL = 300 tPHL (4) Normal application would be with light source blocked, simulated by IF = 0mA. (5) VOH = VCC-1.5V for VCC = 4.5V to 16V. Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 (972)323-2200 Fax (972)323-2396 12-57 Types OPB685, OPB686, OPB687, OPB688 Typical Performance Curves Switching Time vs Ambient Temperature Rise Time vs Output Load vs Ambient Temperature VCC = 5 V IF = 0 or 10 mA f = 10 kHz DC = 50% tf tr RL = 2 * * - Equivalent Output Load Including Pull-up if Applicable VCC = 5 V IF = 0 or 10 mA f = 10 KHz D.C. = 50% RL = 300 TA - Ambient Temperature - oC RL = 1* RL = 390* RL = 300 * TA - Ambient Temperature - oC Typical Thermal Derating Curve Safe Operating Area No Heat Sink; Derate 2.50 mW/o C Above 30o C TA - Ambient Temperature - oC Schematics OPB685...Buffer/10K PU VCC OUT OPB686...Buffer/OC VCC OUT GND OPB688...Inverter/OC VCC OUT A GND K VCC OUT GND A K OPB687...Inverter/10K PU A GND K A K Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 (972)323-2200 Fax (972)323-2396 12-59 Types OPB685, OPB686, OPB687, OPB688 Typical Performance Curves Normalized Forward Voltage vs Ambient Temperature Forward Current vs Forward Voltage Input Diode Trigger Current vs Ambient Temperature VCE = 5 V IF = 5 mA Normalized to TA = 25o C ITLH ITHL IF @ 500 ms pulse width VCC = 5 V Output Unloaded TA - Ambient Temperature - oC IF - Forward Current - mA TA - Ambient Temperature - oC Normalized Supply Current vs Ambient Temperature OPB685, OPB687 Normalized High Level Output Voltage vs Ambient Temperature VCC = 16 V IOH = 100 A OPB686, OPB688 High Level Output Current vs Ambient Temperature VCC = 16 V VOH = 30 V ICCH, ICCL VOH IOH VCC = 5 V Output Unloaded TA - Ambient Temperature - oC TA - Ambient Temperature - oC TA - Ambient Temperature - oC Low Level Output Voltage vs Ambient Temperature OPB685, OPB686 Propagation Delay vs Ambient Temperature OPB687, OPB688 Propagation Delay vs Ambient Temperature tPHL VOL tPLH tPLH tPHL VCC = 4.5 V IOL = 16 mA VCC = 5 V IF = 0 or 10 mA f = 10 kHz DC = 50% RL = 300 VCC = 5 V IF = 0 or 10 mA f = 10 kHz DC = 50% RL = 300 TA - Ambient Temperature - oC TA - Ambient Temperature - oC TA - Ambient Temperature - oC Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 12-58 (972) 323-2200 Fax (972) 323-2396 |
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