Product Bulletin OPB950 April 2006 Dual Channel Encoder Type OPB950 Features Absolute Maximum Ratings (TA = 25o C unless otherwise noted) • Dual channel outputs • 0.010" (0.254 mm) sensor apertures Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +85o C Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +85o C for high resolution • Open collector inverter outputs • Snap mount • 4-pin connector 0.98" (2.5 mm) Mates with Molex 22-01-1042 and terminal # 08-70-0069 Description The OPB950 consists of an infrared emitting diode and a monolithic integrated circuit which incorporates two independent photodiodes, linear amplifiers, Schmitt trigger circuits and output transistors. The outputs are TTL/LSTTL compatible and can drive 8 TTL loads. Input Diode Forward DC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Peak Forward Current (1µs Pulse Width, 300 pps) . . . . . . . . . . . . . . . . . . . . . . . 3.0 A Reverse D. C. Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW(1) Output Photologic® Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 V Voltage at Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mW(2) Low Level Output Current (Sinking) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA Notes: (1) Derate linearly 1.67 mW/o C above 25o C. (2) Derate linearly 3.33 mW/o C above 25o C. Schematic Applications include linear and rotary encoders with high resolution provided by internal 0.010" (0.254 mm) apertures located in front of Photologic® sensor on 0.040" (1.02 mm) center line spacing. For RoHS compliant devices add "Z" to the end of the part number: OPB950Z RoHS Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 12-152 (972) 323-2200 Fax (972) 323-2396 Type OPB950 Electrical Characteristics (TA = 25o C unless otherwise noted) SYMBOL PARAMETER MIN TYP MAX UNITS VCC Operating D.C. Supply Voltage 4.75 VOH High Level Output Voltage (per channel) 2.4 VOL Low Level Output Voltage (per channel) 5.0 5.25 0.4 TEST CONDITIONS V V VCC = 5.0 V, Blocked Condition V VCC = 5.0 V, Unblocked Condition 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 12-153