SS1344

SS1344 Unipolar Hall Switch-Low Sensitivity Features and Benefits – 3.5V to 24V Operation – -40°C to 150°C Superior temperature operation – CMOS technology – Low current consumption – Chopper-stabilized amplifier stage – Open drain output – Low sensitivity – Small Size SOT23 3L or SIP 3L – both RoHS compliant packages Application Examples – Automotive, Consumer and Industrial – Solid-state switch – Brushless DC motor commutation – Speed detection – Angular position detection – Proximity detection – Current detector 3 pin SOT23 (suffix SO) 3 pin SIP (suffix UA) Functional Block Diagram VDD Voltage Regulator Chopper Hall Plate GND SIP Package Pin 1 – VDD Pin 2 – GND Pin 3 – OUT SOT Package Pin 1 – VDD Pin 2 – OUT Pin 3 – GND OUT 1 3.10 Nov 1, 2013 SS1344 Unipolar Hall Switch-Low Sensitivity General Description The SS1344 is a unipolar Hall-effect sensor IC fabricated from CMOS technology. The device integrates a voltage regulator, Hall sensor with dynamic offset cancellation system, small signal amplifier, Schmitt trigger and an open-drain output driver. 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 o...