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A3230 Datasheet(PDF) 3 Page - Allegro MicroSystems |
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A3230 Datasheet(HTML) 3 Page - Allegro MicroSystems |
3 / 12 page Chopper-Stabilized Hall Effect Bipolar Switch A3230 3 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com OPERATING CHARACTERISTICS valid over full operating voltage and ambient temperature ranges, unless otherwise noted Characteristic Symbol Test Conditions Min. Typ. Max. Units Electrical Characteristics Supply Voltage1 VCC Operating, TJ < 165°C 3.6 – 24 V Output Leakage Current IOUTOFF VOUT = 24 V, B < BRP –– 10 μA Output On Voltage VOUT(SAT) IOUT = 20 mA, B > BOP – 250 500 mV Output Current Limit IOM B > BOP 30 – 60 mA Power-On Time tPO VCC > 3.6 V – 8 50 μs Chopping Frequency fc – 200 – kHz Output Rise Time2 tr RLOAD = 820 Ω, CS = 20 pF – 0.2 1 μs Output Fall Time2 tf RLOAD = 820 Ω, CS = 20 pF – 0.2 1 μs Supply Current ICCON B > BOP – 1.6 3.5 mA ICCOFF B < BRP – 1.6 3.5 mA Reverse Battery Current IRCC VRCC = –18 V – – –2 mA Supply Zener Clamp Voltage VZ ICC = 6.5 mA; TA = 25°C 28 – – V Supply Zener Current3 IZ VS = 28 V – – 6.5 mA Magnetic Characteristics4 Operate Point BOP South pole adjacent to branded face of device –10 7.5 25 G Release Point BRP North pole adjacent to branded face of device –25 –7.5 10 G Hysteresis BHYS BOP – BRP 515 25 G 1 Maximum voltage must be adjusted for power dissipation and junction temperature, see Power Derating section. 2 CS = oscilloscope probe capacitance. 3 Maximum current limit is equal to the maximum ICC(MAX) + 3 mA. 4 Magnetic flux density, B, is indicated as a negative value for north-polarity magnetic fields, and as a positive value for south-polarity magnetic fields. This so-called algebraic convention supports arithmetic comparison of north and south polarity values, where the relative strength of the field is indicated by the absolute value of B, and the sign indicates the polarity of the field (for example, a –100 G field and a 100 G field have equivalent strength, but opposite polarity). DEVICE QUALIFICATION PROGRAM Contact Allegro for information. EMC (Electromagnetic Compatibility) REQUIREMENTS Contact Allegro for information. |
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