Reflective Object Sensor Optek Technology OPB608A/B/C, OPB608R, OPB608V • • • • • Phototransistor Output Unfocused for sensing diffuse surface Low Cost Plastic Housing Enhanced signal to noise ratio Reduced ambient light sensitivity The OPB608 is a reflective switch that consist of an infrared emitting device (LED or VCSEL) and an NPN silicon phototransistor mounted “side-by-side” on a parallel axis in a black opaque plastic housing. Both the emitting device and phototransistor are encapsulated in a visible filtering epoxy except the OPB608R. The phototransistor responds to radiation from the emitter only when a reflective object passes within its field of view. The phototransistor has enhanced low current roll off to improve the contrast ratio and immunity to background irradiance. The LED versions are designed for near field applications with the VCSEL version being designed for longer distances. The OPB608A/B/C devices are designed for applications with reflective distances between 0.050” and 0.375” and when the light pattern is not to be seen by the human eye except for the OPB608R. By utilizing the night enhancement function of a camera, the near infrared light pattern can be seen. This allows the user to see the pattern shining on the reflective object. The OPB608R device is designed for applications with reflective distances between 0.050” and 0.300” and when the light pattern is to be seen by the human eye. The efficiency of the sensor is lower for optical wavelengths in the visible range thus reducing the distance that can be used. The OPB608V device is designed for applications with reflective distances between 0.050” and 1.5” and when the light pattern is not to be seen by the human eye. By utilizing the night enhancement function of a camera, the near infrared light pattern can be seen. This allows the user to see the pattern shining on the reflective object. Reflective distances are dependent upon the drive current for the light emitting device, the wavelength of the light source, and the type of reflective material, therefore each application should be checked for the ability to meet each application. Ordering Information OPB608A—880nm LED, IC(ON) 2.0 mA min. OPB608B—880nm LED, IC(ON) 1.0 mA min, 4.0 mA max. OPB608C—880nm LED, IC(ON) 0.5 mA min OPB608R—660nm LED, IC(ON) 1.0 mA min, 6.0 mA max. OPB608V—850nm VCSEL, IC(ON) 5.0 mA min. Additional laser safety information can be found on the Optek website. See application #221. Classification is not marked on the device due to space limitations. See package outline for centerline of optical radiance. Operating devices beyond maximum rating may cause devices to exceed rated classification 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.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com A subsidiary of TT electronics plc Issue A 06.04 Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Optek Technology Absolute Maximum Ratings TA = 25o C unless otherwise noted Storage and Operating Temperature -40° C to +85° C Lead Soldering Temperature (1/16” (1.6mm) from case for 5 seconds with soldering iron) 260° C (1) Infrared-LED (880nm) (OPB608A, OPB608B, OPB608C) Forward DC Current 50 mA Peak Forward Current (1µs pulse width, 300 pps) 3.0 A Reverse DC voltage 2.0 V Power Dissipation 75 mW (3) Visible Red-LED (660nm) (OPB608R) Forward DC Current 50 mA Reverse DC voltage 5.0 V Power Dissipation 100 mW (3) Infrared-VCSEL (850nm) (OPB608V) Forward DC Current 30 mA Reverse DC voltage 5.0 V Power Dissipation 75 mW (3) Phototransistor Collector-Emitter Voltage 30 V Emitter Reverse Current 10 mA Collector DC Current 25 mA Power Dissipation 100 mW (3) Notes: (1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. (2) Methanol or isopropanol are recommended as cleaning agents. The plastic housing is soluble in chlorinated hydrocarbons and keytones. (3) Derate Linearly 1.6 mW/°C above 25°C. OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com Issue A 06.04 Page 2 of 9 Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Optek Technology Electrical Characteristics (TA = 25°C unless otherwise noted) SYMBOL PARAMETER MIN Typ. MAX UNITS CONDITIONS Infrared-LED (880nm) VF Forward Voltage — 1.7 V IF = 20 mA IR Reverse Current — 100 µA VR = 2.0 V 2.5 V IF = 20 mA V IR = 10.0 µA Visible Red-LED (650nm) VF Forward Voltage — 1.9 VR Reverse Voltage 5.0 VF Forward Voltage — 2.15 V IF = 12 mA IR Reverse Current — 30 nA VR = 5 V ITH Threshold Current 2.0 5.5 mA θ Beam Divergence Infrared VCSEL (850) 12 Deg. IF = 12 mA Phototransistor VBR/CEO Collector Emitter Breakdown Voltage 30 — V IC = 100 µA IECO Emitter Collector Reverse Current — 100 µA VEC = 0.4 Volts ICEO Collector Emitter Dark Current — 100 nA VCE = 5.0 V, Ee = ≤ 0.10 µW/cm2, IF=0 OPB608A OPB608B OPB608C 2.0 1.0 0.5 — 4.0 — mA mA mA OPB608R 1.0 6.0 mA OPB608V 5.0 — mA — 100 nA Combined IC(ON) IC(OFF) On-State Collector Current Off-State Collector Current NOTES: (1) (2) (3) VCE = 5.0 V, IF = 20 mA d = 0.110 inch (2.79 mm)(1)(2) VCE = 5.0 V, IF = 20 mA No reflective surface Distance from the measurement surface to reflective surface (see mechanical page outline). Measured using Eastman Kodak Gray card. The white side of the card uses as a 90% diffuse reflective surface. Reference Eastman Kodak catalog # E152 7795 All parameters are tested using pulse techniques. OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com Issue A 06.04 Page 3 of 9 Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Optek Technology Collector Current vs Object Distance 100.000 Vce=5 Volts, IF = 20 mA Standard Test Conditions Ic - Typical Collector Current - mA 10.000 1.000 OPB608R OPB608V OPB608 0.100 0.010 0.001 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 Distance to Reflectave Surface - Inches Collector Current vs Diode Forward Current 20 Vce = 5 Volts Standard Test Conditions 18 Ic - Typical Collector Current - mA 16 OPB608R OPB608V OPB608 14 12 10 8 6 4 2 0 0 10 20 30 40 50 IF - Forward Current - mA OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com Issue A 06.04 Page 4 of 9 Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Optek Technology Rise and Fall vs Load Resistance 1000 Tr,Tf - Switching Speed - usec 10% Duty Cycle 1 ms Pulse Width Vce = 5 Volts Standard Test Conditons 100 10 OPB608R - Tr OPB608R - Tf OPB608 - Tr OPB608 - Tf OPB608V - Tr OPB608V - Tf 1 100 1000 10000 RL - Load resistance - Ohms Normalized Collector Current vs Ambient Temperature 140% OPB608R OPB608 OPB608V Normalized Collector Current - % 120% 100% 80% 60% Standard Test Conditions Vce=5 Volts Normalized to Ta=25 °C 40% 20% 0% -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 Ta - Ambient Temperature - °C OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com Issue A 06.04 Page 5 of 9 Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Optek Technology Reletive Response 100 90 80 70 60 50 40 30 20 10 Laserjet Black Inkjet Black 0 OPB608V Copier Black OPB608 OPB608R 1200 1000 800 600 400 200 Thermal Paper 0 Black Thermal Paper OPB608 OPB608R OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com Issue A 06.04 Page 6 of 9 Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Optek Technology Reletive Response 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 White 90% 0 OPB608V Gray 18% OPB608 OPB608R 6000 5000 4000 3000 2000 Inkjet 20% Black 1000 Laserjet 20% Black Laser 20% Black 0 Copier 20% Black OPB608V OPB608 OPB608R OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com Issue A 06.04 Page 7 of 9 Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V Optek Technology Reletive Response 5000 4500 4000 3500 3000 2500 2000 1500 Inkjet Green 1000 Inkjet Yellow 500 Inkjet Cyan 0 Inkjet Magenta OPB608V OPB608 OPB608R 3000 2500 2000 1500 1000 500 Silver Tape 0 White Plastic OPB608V OPB608 OPB608R OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com Issue A 06.04 Page 8 of 9 Reflective Object Sensor OPB608A, OPB608B, OPB608C, OPB608R, OPB608V 0.200 [5.08] 0.185 [4.70] Optek Technology CL 0.200 [5.08] 0.087 [2.21] 0.250 [6.35] 0.125 [3.18] 0.173 [4.39] 0.120 [3.05] 0.100 [2.54] 0.087 [2.21] Notes: (1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. (2) Methanol or isopropanol are recommended as cleaning agents. The plastic housing is soluble in chlorinated hydrocarbons and keytones. Ordering Information OPB608A—880nm LED, IC(ON) 2.0 mA min. OPB608B—880nm LED, IC(ON) 1.0 mA min, 4.0 mA max. OPB608C—880nm LED, IC(ON) 1.0 mA min OPB608R—650nm LED, IC(ON) 0.5 mA min, 6.0 mA max. OPB608V—850nm VCSEL, IC(ON) 5.0 mA min. OPTEK Technology Inc.— 1645 Wallace Drive, Carrollton, Texas 75006 Phone: (800) 341-4747 FAX: (972) 323– 2396 [email protected] www.optekinc.com Issue A 06.04 Page 9 of 9