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A3281LLT Datasheet(PDF) 2 Page - Allegro MicroSystems |
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A3281LLT Datasheet(HTML) 2 Page - Allegro MicroSystems |
2 / 8 page 3185 THRU 3189 HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 ELECTRICAL CHARACTERISTICS over operating temperature range, at VCC = 12 V. Limits Characteristic Symbol Test Conditions Min. Typ. Max. Units Supply Voltage VCC Operating 3.8 — 24 V Output Saturation Voltage VOUT(SAT) IOUT = 20 mA, B > BOP — 175 400 mV Output Leakage Current IOFF VOUT = 24 V, B < BRP — 0.05 5.0 µA Supply Current ICC B < BRP (Output OFF) — 4.75 8.0 mA B > BOP (Output ON) — 5.7 — mA Output Rise Time tr RL = 820 Ω, CL = 20 pF — 100 — ns Output Fall Time tf RL = 820 Ω, CL = 20 pF — 100 — ns MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range. Part Numbers* A3185 A3187 A3188 A3189 Characteristic Min. Max. Min. Max. Min. Max. Min. Max. BOP at TA = 25 °C 170 270 50 150 100 180 50 230 over operating temp. range 140 300 50 175 80 200 50 250 BRP at TA = 25 °C -270 -170 -150 -50 -180 -100 -230 -50 over operating temp. range -300 -140 -175 -50 -200 -80 -250 -50 Bhys at TA = 25 °C 340 540 100 300 200 360 100 460 over operating temp. range 280 600 100 350 160 400 100 500 FUNCTIONAL BLOCK DIAGRAM NOTES: BOP = operate point (output turns ON); BRP = release point (output turns OFF); Bhys = hysteresis (BOP - BRP). As used here, negative flux densities are defined as less than zero (algebraic convention). *Complete part number includes a suffix to identify operating temperature range (E or L) and package type ( LT, U, or UA). VCC X REG. Dwg. FH-005-3 GROUND OUTPUT 1 3 2 Copyright © 1995, 1999, Allegro MicroSystems, Inc. |
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