SS1344
Unipolar Hall Switch-Low Sensitivity
Features and Benefits
– 3.5V to 24V Operation – -40°C to 150°C Superior tem...
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...