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A1185LLHLT-T Datasheet(PDF) 2 Page - Allegro MicroSystems |
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A1185LLHLT-T Datasheet(HTML) 2 Page - Allegro MicroSystems |
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2 / 14 page  Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall Effect Switches A1185 and A1186 2 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com Selection Guide Part Number Pb-free1 Packing2 Mounting Ambient, TA (°C) Output South (+) Field3 Supply Current at Low Output, ICC(L) (mA) A1185ELHLT-T Yes 7-in. reel, 3000 pieces/reel Surface mount –40 to 85 Low 5 to 6.9 A1185EUA-T Yes Bulk, 500 pieces/bag 4-pin SIP through hole A1185LLHLT-T Yes 7-in. reel, 3000 pieces/reel Surface mount –40 to 150 A1185LUA-T Yes Bulk, 500 pieces/bag 4-pin SIP through hole A1186ELHLT-T Yes 7-in. reel, 3000 pieces/reel Surface mount –40 to 85 High A1186EUA-T Yes Bulk, 500 pieces/bag 4-pin SIP through hole A1186LLHLT-T Yes 7-in. reel, 3000 pieces/reel Surface mount –40 to 150 A1186LUA-T Yes Bulk, 500 pieces/bag 4-pin SIP through hole 1Pb-based variants are being phased out of the product line. Certain variants cited in this footnote are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because obsolescence in the near future is probable. Samples are no longer available. Status change: May 1, 2006. These variants include: A1185ELHLT, A1185EUA, A1185LLHLT, A1185LUA, A1186ELHLT, A1186EUA, A1186LLHLT, and A1186LUA. 2Contact Allegro for additional packing options. 3South (+) magnetic fields must be of sufficient strength. Additionally, the system designer gains inherent diagnostics because output current normally flows in either of two narrowly- specified ranges. This provides distinct current ranges for IOUT(H) and IOUT(L). Any output current level outside of these two ranges is a fault condition. Other features of the A1185 and A1186 devices include on-chip transient protection and a Zener clamp on the power supply to protect against overvoltage conditions on the supply line. The output current of the A1186 switches HIGH in the presence of a south polarity magnetic field of sufficient strength; and switches LOW otherwise, including when there is no significant magnetic field present. The A1185 has an inverted output current level: switching LOW in the presence of a south polarity magnetic field of sufficient strength, and HIGH otherwise. Both devices are offered in two package styles: LH, a SOT-23W miniature low-profile package for surface-mount applications, and UA, a three-lead ultramini Single Inline Package (SIP) for through- hole mounting. Each package is available in a lead (Pb) free version (suffix, –T) with 100% matte tin plated leadframe. Factory-programmed versions are also available. Refer to: A1145 and A1146. Absolute Maximum Ratings Characteristic Symbol Notes Rating Units Supply Voltage VCC 28 V Reverse Supply Voltage VRCC –18 V Magnetic Flux Density B Unlimited G Operating Ambient Temperature TA Range E –40 to 85 ºC Range L –40 to 150 ºC Maximum Junction Temperature TJ(max) 165 ºC Storage Temperature Tstg –65 to 170 ºC Description (continued) |
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