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A3212 Datasheet(PDF) 5 Page - Allegro MicroSystems |
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A3212 Datasheet(HTML) 5 Page - Allegro MicroSystems |
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5 / 13 page  Micropower, Ultrasensitive Hall-Effect Switches A3211 and A3212 5 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com A3211 MAGNETIC CHARACTERISTICS over operating voltage range (unless otherwise specified) Characteristic Symbol Test Conditions Limits Min. Typ. Max. Units Over Temperature Range E: T A = –40°C to 85°C Operate Points BOPS South pole to branded side; B > BOP, VOUT = High (Output Off) – 37 55 G BOPN North pole to branded side; B > BOP, VOUT = High (Output Off) –55 –40 – G Release Points BRPS South pole to branded side; B < BRP, VOUT = Low (Output On) 10 31 – G BRPN North pole to branded side; B < BRP, VOUT = Low (Output On) – –34 –10 G Hysteresis BHYS |BOPx - BRPx| – 5.9 – G NOTES: 1. Negative flux densities are defined as less than zero (algebraic convention), i.e., -50 G is less than +10 G. 2. BOPx = operate point (output turns off); BRPx = release point (output turns on). 3. Typical Data is at TA = +25°C and VDD = 2.75 V and is for design information only. 4. 1 gauss (G) is exactly equal to 0.1 millitesla (mT). Characteristic Symbol Test Conditions Limits Min. Typ. Max. Units Over Temperature Range E: T A = –40°C to 85°C Operate Points BOPS South pole to branded side; B > BOP, VOUT = Low (Output On) – 37 55 G BOPN North pole to branded side; B > BOP, VOUT = Low (Output On) –55 –40 – G Release Points BRPS South pole to branded side; B < BRP, VOUT = High (Output Off) 10 31 – G BRPN North pole to branded side; B < BRP, VOUT = High (Output Off) – –34 –10 G Hysteresis BHYS |BOPx - BRPx| – 5.9 – G Over Temperature Range L: T A = –40°C to 150°C Operate Points BOPS South pole to branded side; B > BOP, VOUT = Low (Output On) – 37 65 G BOPN North pole to branded side; B > BOP, VOUT = Low (Output On) –65 –40 – G Release Points BRPS South pole to branded side; B < BRP, VOUT = High (Output Off) 10 31 – G BRPN North pole to branded side; B < BRP, VOUT = High (Output Off) – –34 –10 G Hysteresis BHYS |BOPx - BRPx| – 5.9 – G NOTES: 1. Negative flux densities are defined as less than zero (algebraic convention), i.e., -50 G is less than +10 G. 2. BOPx = operate point (output turns on); BRPx = release point (output turns off). 3. Typical Data is at TA = +25°C and VDD = 2.75 V and is for design information only. 4. 1 gauss (G) is exactly equal to 0.1 millitesla (mT). A3212 MAGNETIC CHARACTERISTICS over operating voltage range (unless otherwise specified) |
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