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    S3144
    General Description The S3144 is a unipolar Hall-effect sensor IC fabricated from bipolar technology. The device integrates a voltage regulator, reverse battery protection diode, Hall sensor with dynamic offset cancellation system, temperature compensation circuitry, small signal amplifier, Schmitt trigger and an open-collector output to sink up to 25 mA. With suitable output pull up, they can be used with bipolar or CMOS logic circuits.
    These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150°C,and are more stable with both temperature and supply voltage changes. The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet.
    Thanks to its wide operating voltage range and extended choice of temperature range, it is quite suitable for use in automotive, industrial and consumer applications.
    The device is delivered in a Small Outline Transistor (SOT) or in a Plastic Single In Line (SIP 3L flat). Both 3-lead packages are RoHS compliant.
    Features and Benefits 4.5V to 24V Operation
     -40°C to 150°C Superior temperature operation
    Bipolar technology
    Open-collector 25 mA output
     Reverse battery protection
    Small Size-SOT23 3L or SIP 3L
    Solid-state reliability
    Resistant to physical stress
    Activate with small, commercially available Permanent magnets
    Application Examples Automotive, Consumer and Industrial
     Solid-state switch
     Brushless DC motor commutation
     Speed detection
     Linear position detection
    Angular position detection
     Proximity detection
    Packages 3 pin SOT23W (suffix SO) 3 pin SIP (suffix UA)
    Detail DataSheet S3144_UN_N.pdf

     

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