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A1422LK-T Datasheet(PDF) 5 Page - Allegro MicroSystems |
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A1422LK-T Datasheet(HTML) 5 Page - Allegro MicroSystems |
5 / 16 page 5 A1421-DS Worcester, Massachusetts 01615-0036 (508) 853-5000 115 Northeast Cutoff, Box 15036 www.allegromicro.com Allegro MicroSystems, Inc. High Precision Hall Effect AC-Coupled Differential Sensor with Integrated Filter Capacitor A1421, A1422, A1423 OPERATING CHARACTERISTICS, continued Valid at TA = – 40ºC to 150ºC, TJ ≤ 165°C; over operational air gap range and VCC within operating range, unless otherwise noted. Typical operating parameters: VCC=12 V and TA=25°C. Characteristic Symbol Test Conditions Min. Typ. Max. Units MAGNETIC CHARACTERISTICS5,6 Operate Point BOP 1421, Bdiff increasing, fBdiff = 200 Hz, Bdiff = 50 Gp-p VOUT switches from low (on) to high (off) 0.0 15.0 27.5 G 1422, Bdiff increasing, fBdiff = 200 Hz, Bdiff = 50 Gp-p VOUT switches from high (off) to low (on) 5.0 15.0 35.0 G 1423, Bdiff increasing, fBdiff = 200 Hz, Bdiff = 200 Gp-p VOUT switches from high (off) to low (on) 10.0 65.0 100.0 G Release Point BRP 1421, Bdiff decreasing, fBdiff = 200 Hz, Bdiff = 50 Gp-p VOUT switches from high (off) to low (on) -12.5 0.0 7.5 G 1422, Bdiff decreasing, fBdiff = 200 Hz, Bdiff = 50 Gp-p VOUT switches from low (on) to high (off) -35.0 -15.0 -5.0 G 1423, Bdiff decreasing, fBdiff = 200 Hz, Bdiff = 200 Gp-p VOUT switches from low (on) to high (off) -100.0 -65.0 -10.0 G Hysteresis BHYS 1421, fBdiff = 200 Hz, Bdiff = 50 Gp-p 5 15 35 G 1422, fBdiff = 200 Hz, Bdiff = 50 Gp-p – 30 – G 1423, fBdiff = 200 Hz, Bdiff = 200 Gp-p – 130 – G Applied Magnetic Field7 Bdiff Differential p-p magnetic field – – 1250 G 1ICC is equivalent to ICC(max) + 3 mA. 2Time required to initialize device. 3Time required for the output switchpoints to be within specification. 4Output Rise Time will be dominated by the RC time constant. 5For lower frequencies, the absolute values of BOP, BRP, and BHYS may decrease due to delay induced by the high-pass filter. 6 See Definitions of Terms section. 7 Exceeding the maximum magnetic field may result in compromised absolute accuracy. |
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