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A1146EUATI-T Datasheet(PDF) 4 Page - Allegro MicroSystems |
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A1146EUATI-T Datasheet(HTML) 4 Page - Allegro MicroSystems |
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4 / 13 page  4 A1145-DS, Rev. 6 Worcester, Massachusetts 01615-0036 (508) 853-5000 115 Northeast Cutoff, Box 15036 www.allegromicro.com Allegro MicroSystems, Inc. Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches A1145 and A1146 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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