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A3245LUA-T Datasheet(PDF) 3 Page - Allegro MicroSystems |
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A3245LUA-T Datasheet(HTML) 3 Page - Allegro MicroSystems |
3 / 12 page 3 A3245-DS, Rev. 1 Worcester, Massachusetts 01615-0036 (508) 853-5000 115 Northeast Cutoff, Box 15036 www.allegromicro.com Allegro MicroSystems, Inc. Chopper-Stabilized Omnipolar Hall Effect Switches A3245 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 – – 500 mV Output Current Limit IOM B > BOP 30 – 60 mA Power-On Time tPO VCC > VCC(MIN) –– 50 μs Chopping Frequency fc – 200 – kHz Output Rise Time2 tr RLOAD = 820 Ω, CS = 20 pF – – 1 μs Output Fall Time2 tf RLOAD = 820 Ω, CS = 20 pF – – 1 μs Supply Current ICCON B > BOP – 1.5 3.5 mA ICCOFF B < BRP – 1.5 3.5 mA Reverse Battery Current IRCC VRCC = –18 V – – –2 mA Supply Zener Clamp Voltage VZSupply ICC = 6.5 mA; TA = 25°C 28 – – V Supply Zener Current3 IZSupply VS = 28 V – – 6.5 mA Magnetic Characteristics4 Operate Point BOPS South pole adjacent to branded face of device 15 38 55 G BOPN North pole adjacent to branded face of device –55 –38 –15 G Release Point BRPS South pole adjacent to branded face of device 5 20 50 G BRPN North pole adjacent to branded face of device –50 –20 –5 G Hysteresis BHYS |BOPX – BRPX| 518 30 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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