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A1142EUA-T Datasheet(PDF) 2 Page - Allegro MicroSystems |
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A1142EUA-T Datasheet(HTML) 2 Page - Allegro MicroSystems |
2 / 13 page Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches A1140, A1141, A1142, and A1143 2 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com features on-chip transient protection and a Zener clamp to protect against overvoltage conditions on the supply line. The output currents of the A1141 and A1143 switch HIGH in the presence of a south (+) polarity magnetic field of sufficient strength, and switch LOW otherwise, as in the presence of a weak field or a north (–) polarity field. The other two devices in the family (A1140 and A1142) have an opposite output: the currents switch LOW in the presence of a south-polarity magnetic field of sufficient strength, and switch HIGH otherwise. The other differences in the switches are their defined low current levels and magnetic switchpoints. All versions are offered in two package styles. The LH is a SOT- 23W, miniature low-profile package for surface-mount applications. The UA is a three-lead ultramini SIP for through-hole mounting. Each package is available in a lead (Pb) free version (suffix, –T) with 100% matte tin plated leadframe. Field-programmable versions also available: A1180, A1181, A1182, and A1183. 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) NC 1 2 3 1. VCC 2. No connection 3. GND 1 2 3 1. VCC 2. GND 3. GND Package LH, 3-pin SOT Package UA, 3-pin SIP |
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