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Latch Type Hall Sensor AH4158
  • Latch Type Hall Sensor AH4158
Latch Type Hall Sensor AH4158

Latch Type Hall Sensor AH4158

    ◆ Features

    Rated working voltage 4.5 V ~ 24 V, the limit voltages as low as 3.5 V;

    Operating temperature range: -55℃ ~ 150℃;

    Rated output current (sink) : 300 mA, it can directy drive the coils of DC motor (Fan );

    Special design make the sensor owns imunity to logic race condition, short switch time and good switch sensitivity;

    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 requirements.

PRODUCTS DETAILS

◆ Outline

AH4158 unipolar two ends complementary output switch type Hall Sensor, when the “S” pole faces the sensor’s mark surface and is closed to sensor (B≥Bop),output terminal VO1 outputs low level, and the output terminal VO2 outputs high level; when the magnet is far away from the sensor (B≤Brp),output terminal VO1 outputs high level, the output terminal VO2 output low level. Stable hysteresis (Bh= Bop- Brp) ensures stable switch status, The magnetic and electric transfer characteristic curve of AH4158 is shown as the figure:

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◆ Block Diagram

2.png

AH4158 Hall Sensor is a kind of unipolar field excitation two ends complementary output switch type Hall IC. Complementary output Hall sensor is particularly suitable for double coil DC motor, double coil DC fan, speed measurement and rotation control. The sensor chip intergrated bandgap reference voltage source, Hall voltage generator, signal amplifier, hysteresis controller, reverse voltage protection diode, and two way complementary output open collector output driver which sink current reaches 300mA and so on circuit unit. Excellent bandgap reference voltage source ensures the sensor can keep concordant sensitivity in a wide temperature range. Reverse voltage protection diode can avoid reverse power failure.


◆ Limit Parameter

ParameterSymbolMin.Max.Unit
Storage Temp.Ts-55150
Supply VoltageVCC3.528V
Output Cut-off VoltageVO(off)25V
Magnetic InductionBunlimitedunlimitedmT
Output CurrentIO500mA


◆ Electrostatic Grade

Under human being mode, the Electrostatic compression is large than ±6kV.


◆ Operating Condition

ParameterSymbolMin.Max.Unit
Supply VoltageVCC4.524V
Operating Temp.Ta-2585
Output CurrentIO300mA


◆ Electrical Characteristc

ParamaterSymbolTest    ConditionTyp.MaxUnit
Output Low LevelVOLVCC1=4.5, VCC2=24V, IO=25mA,BBOP0.20.4V
Output High LevelVOHVCC1=4.5, VCC2=24V, IO=25mA,B≤BRP23.524V
Output Leakage CurrentIOHVCC2=24V,VCC1 open    circuit0.110μA
Supply CurrentICCVCC1=24V,Vo open circuit612mA
Output Rise Edge TimetRVCC1=VCC2=12V,
     RL=1.2kΩ,    CL=20pF
125150ns
Output Fall Edge TimetF6080ns


◆ Magnetic Characteristic

Test condition:VCC1 = VCC2 =24V,IO = 50mA


ParameterSymbolMin.Typ.Max.
Operate PointBOP1020
Release PointBRP35
Hysteresis
     ∣Operate point-Release point∣
BH
     ∣BOP-BRP∣
3-16


Note 1: Unit is mT, 1mT=10Gs.

Note 2:  When the “S” Pole of the magnetic field is vertical to the front mark of product, we call the magnetic field B>0.


◆ Package Outline

TO-92UA/TO-92S Package outline(unit: mm)

3.png

Note: In the above package outline figure, Pin 1: Vcc, Pin 2: GND, Pin 3: Output terminal.


Mark

Mark “XX” or “AHXX” are abbreviation form of the parts No.  

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