Bipolar Hall Sensor, Ah3041n, Speed Sensor

FeaturesRated working voltage 4.5 V ~ 24 V, the limit voltages as low as 3.5 V;Operating temperature range: -55ºC ~ 150ºC;Rated output current(sink) : 25 mA, the maximum output current(sink): 50 mASwitch response time is about 1μs, the operating frequency DC ~ 100 kHz;Small temperature drift between operating point and release point;No mechanical contact, no spark, switch signal stability, no shaking moment, high reliability and safety;Products meet the EU RoHS instruction 2011/65 / EU and REACH regulations 1907/2006 / EU requirementsOutlineWhen the N pole of magnet faces the mark surface of the sensor and is closed to sensor(|B|≥|Bop|),the sensor outputs low level; When the N pole faces the mark surface and is closed to sensor (|B|≥|Brp|),the sensor outputs high level. When the magnet is far away from the sensor (B=0), the output status of the sensor is latched and remains constant. In order to change the output status, the applied magnetic field must be opposite polarity. The magnet and electric transfer characteristic curve of AH3041N is shown as the figure:Simply, the polarity of the operating magnetic field of AH3041N is opposite with normal Hall sensor.
Hall sensor AH3041N is one of bipolar excitation single-ended digital output Hall IC. The output signal owns latch function. The sensor chip has built-in reverse voltage protection, voltage regulators, temperature compensation circuit, Hall-voltage generator, signal amplifier, Schmitt trigger, and open collector output driver circuit unit. Excellent voltage regulator and temperature compensation circuit ensure the sensor stable operates over a wide voltage range and temperature range, and the reverse voltage protection circuit avoids the sensor to be damaged by reverse voltage.Limit ParameterParameterSymbolMin.Max.UnitStorage Temp.s-55175ºCSupply VoltageCC3.528VOutput Cut-off Voltage(off)-25VMagnetic InductionunlimitedunlimitedmTOutput CurrentO-50mAElectrostatic GradeUnder human being mode, the Electrostatic compression is large than ±6kV.
Operating ConditionParameterSymbolMin.Max.UnitSupply VoltageCC4.524VOperating Temp.a-55150ºCOutput CurrentO-8mAElectrical CharacteristicParameterSymbolTest Condition Typ. Max. Max. UnitOutput Low levelOL1=4.5,2=24V,O=25mA,≥OP0.20.4VOutput High LevelOH1=4.5,2=24V,O=25mA,RP23.524VOutput Leakage Current OHCC2=24V,CC1 Open Circuit0.110μASupply CurrentCCCC1=24V,o Open Circuit3.58mAOutput Rise Edge TimeRCC1=CC2=12V,
L=1.2kΩ, L=20pF125150nsOutput Fall Edge TimeF6080ns
Magnetic Characteristic
Test condition:VCC1 = VCC2 =24V,IO = 50mAParameterSymbolMin.Typ.Max.Operate Point OP-6-3Release Point RP-36Hysteresis
∣Operate point -Release Point ∣H
∣OP-RP∣3610Note 1: Unit is mT, 1mT=10Gs
Note 2: The triggering magnetic field of AH3041N is subject to "N" pole ( Detailed information please refer to the magnet and electric transfer characteristic curve in page one.)