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A1220ELHLT-T2 Datasheet(PDF) 4 Page - Allegro MicroSystems |
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A1220ELHLT-T2 Datasheet(HTML) 4 Page - Allegro MicroSystems |
4 / 14 page Chopper Stabilized Precision Hall Effect Latches A1220, A1221, A1222, and A1223 4 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 VOUT = 24 V, B < BRP –– 10 μA Output Saturation Voltage VOUT(SAT) IOUT = 20 mA, B > BOP – 185 500 mV Output Current Limit IOM B > BOP 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, CL = 20 pF – 0.2 2 μs Output Fall Time3,4 tf RL = 820 Ω, CL = 20 pF – 0.1 2 μs Supply Current ICC(ON) B > BOP, VCC = 12 V – – 4 mA ICC(OFF) B < BRP, VCC = 12 V – – 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 A1220 5 22 40 G A1221 15 50 90 G A1222 70 110 150 G A1223 100 150 180 G Release Point BRP A1220 –40 –23 –5 G A1221 –90 –50 –15 G A1222 –150 –110 –70 G A1223 –180 –150 –100 G Hysteresis BHYS A1220 (BOP – BRP) 10 45 80 G A1221 30 100 180 G A1222 140 220 300 G A1223 200 300 360 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. 4CL = oscilloscope probe capacitance. |
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