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A1146EUA-T Datasheet(PDF) 3 Page - Allegro MicroSystems |
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A1146EUA-T Datasheet(HTML) 3 Page - Allegro MicroSystems |
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3 / 12 page  Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches A1145 and A1146 3 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com ELECTRICAL CHARACTERISTICS over the operating voltage and temperature ranges, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ. Max. Units Supply Voltage1 VCC 3.5 – 24 V Supply Current2 ICCL B > BOP for A1145; B < BRP for A1146 5 – 6.9 mA ICCH B > BOP for A1146; B < BRP for A1145 12 – 17 mA Reverse Supply Current IRCC VRCC = –18 V – – –1.6 mA Supply Zener Clamp Voltage VZSUPPLY ICC = ICCL(max) + 3 mA; TA = 25°C 28 – 40 V Supply Zener Clamp Current3 IZSUPPLY VZSUPPLY = 28 V – – 9.9 mA Output Slew Rate4 di/dt Capacitance of the oscilloscope performing the measurement = 20 pF – 36 – mA/μs Chopping Frequency fC – 200 – kHz Power-On Time5 ton CBYPASS = 0.01 μF –– 25 μs Power-On State6,7 POS t < ton; VCC slew rate > 25 mV/μs – HIGH – – 1VCC represents the generated voltage between the VCC pin and the GND pin. 2Relative values of B use the algebraic convention, where positive values indicate south magnetic polarity, and negative values indicate north magnetic polarity; therefore greater B values indicate a stronger south polarity field (or a weaker north polarity field, if present). 3IZSUPPLY(max) = ICCL(max) + 3 mA. 4Measured without bypass capacitor between VCC and GND. Use of a bypass capacitor results in slower current change. 5Measured with and without bypass capacitor of 0.01 μF. Adding a larger bypass capacitor causes longer Power-On Time. 6POS is defined as true only with a VCC slew rate of 25 mV/μs or greater. Operation with a VCC slew rate less than 25 mV/μs can permanently harm device performance. 7POS is undefined for t > ton or BRP < B < BOP. MAGNETIC CHARACTERISTICS over the operating voltage and temperature ranges, unless otherwise specified Characteristic Symbol Test Conditions Min. Typ.* Max. Units Operate Point BOP A1145 ICC = ICCL 20 37 60 G A1146 ICC = ICCH Release Point BRP A1145 ICC = ICCH 10 22 55 G A1146 ICC = ICCL Hysteresis BHYS BHYS = BOP – BRP 515 30 G *Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions, such as TA = 25°C and VCC = 12 V. Performance may vary for individual units, within the specified maximum and minimum limits. |
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