Product Bulletin OMH360 June 1996 High Reliability Hallogic® Hall Effect Sensor Types OMH360B, OMH360S Features Absolute Maximum Ratings (TA = 25o C unless otherwise noted) • Lead finish is hot solder dip • Hermetic ceramic package • Operates over a broad range of Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . -65o C to +150o C Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . -55o C to +125o C Lead Soldering Temperature [1/8 inch (3.2mm) from case for 5 sec. with soldering iron]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260o C Output ON Current, ISINK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA Output OFF Voltage, VOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V Magnetic Flux Density, B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited supply voltages • Excellent temperature stability to operate in harsh environments • Hall element, linear amplifier, and Schmitt trigger on a single Hallogic® silicon chip • Processing patterned after class B or class S of MIL-STD-883 • Suitable for military and space applications Functional Block Diagram Description The chip contains a monolithic integrated circuit which incorporates a Hall element, a linear amplifier, and Schmitt trigger on a single silicon chip. Included on-chip is a bandgap voltage regulator to allow operation with a wide range of supply voltages. The device features logic level output and is capable of 25 mA of sink current. Output amplitude is constant at switching frequencies from DC to over 200 kHz. The OMH360B is processed to Optek’s own screening procedures patterned after class B of MIL-STD-883. OMH360S is patterned after class S. Typical screening and lot acceptance provided on page 13-4. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 14-14 (972) 323-2200 Fax (972) 323-2396 Types OMH360B, OMH360S Electrical Characteristics (TA = 25o C, VCC = 4.5 V to 24 V unless otherwise noted) SYMBOL MIN TYP MAX UNITS Magnetic Operate Point 235 360 465 Gauss BRP Magnetic Release Point 170 280 360 Gauss BH Magnetic Hysteresis 30 80 150 Gauss BOP PARAMETER TEST CONDITIONS ICC Supply Current 5.0 9.0 mA VCC = 24 V, Output On VOL Output Saturation Voltage 125 300 mV VCC = 4.5 V, IOL = 15 mA IOH Output Leakage Current 0.1 10.0 µA VCC = 24 V, VOUT = 24 V tr Output Rise Time 0.13 1.00 µs RL = 820 Ω , CL = 20 pF tf Output Fall Time 0.19 1.00 µs RL = 820 Ω , CL = 20 pF Typical Performance Curves Magnetic Operate Point vs. Ambient Temperature TA - Ambient Temperature - oC Magnetic Release Point vs. Ambient Temperature TA - Ambient Temperature - oC Supply Current vs. Ambient Temperature TA - Ambient Temperature - oC Output Saturation Voltage vs. Ambient Temperature TA - Ambient Temperature - oC 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 14-15