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A1125LUA-T Datasheet(PDF) 3 Page - Allegro MicroSystems |
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A1125LUA-T Datasheet(HTML) 3 Page - Allegro MicroSystems |
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3 / 9 page  Chopper Stabilized Precision Hall Effect Switches A1120 and A1125 3 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com ELECTRICAL CHARACTERISTICS Valid valid over full operating voltage and ambient temperature ranges; unless otherwise noted Characteristics Symbol Test Conditions Min. Typ.1 Max. Unit2 Electrical Characteristics Forward Supply Voltage VCC Operating, TJ < 165°C 3 – 24 V Output Leakage Current IOUTOFF A1120 VOUT = 24 V, B < BRP –– 10 μA A1125 VOUT = 24 V, B > BOP –– 10 μA Output Saturation Voltage VOUT(SAT) A1120 IOUT = 20 mA, B > BOP – 185 500 mV A1125 IOUT = 20 mA, B < BRP – 185 500 mV Output Current Limit IOM A1120 B > BOP 30 – 60 mA A1125 B < BRP 30 – 60 mA Power-On Time3 tPO VCC > 3.0 V, B < BRP(min) – 10 G, B > BOP(max) + 10 G –– 25 μs Chopping Frequency fC – 800 – kHz Output Rise Time3,4 tr RL = 820 Ω, CS = 20 pF – 0.2 2 μs Output Fall Time3,4 tf RL = 820 Ω, CS = 20 pF – 0.1 2 μs Supply Current ICC(ON) A1120 VCC = 12 V, B > BOP –– 4 mA A1125 VCC = 12 V, B < BRP –– 4 mA ICC(OFF) A1120 VCC = 12 V, B < BRP –– 4 mA A1125 VCC = 12 V, B > BOP –– 4 mA Reverse Supply Current IRCC VRCC = –30 V – – –5 mA Supply Zener Clamp Voltage VZ ICC = 5 mA; TA = 25°C 28 – – V Zener Impedance IZ ICC = 5 mA; TA = 25°C – 50 – Ω Magnetic Characteristics Operate Point BOP A1120 – 35 50 G A1125 – 35 50 G Release Point BRP A1120 5 25 – G A1125 5 25 – G Hysteresis BHYS (BOP – BRP)– 10 – G 1Typical data are are at TA = 25°C and VCC = 12 V, and are for initial design estimations only. 21 G (gauss) = 0.1 mT (millitesla). 3Guaranteed by device design and characterization. 4CS = oscilloscope probe capacitance. |
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