MultiDimension Technology Co., Ltd. MicroAmpere High Frequency Response Omnipolar Magnetic Switch Sensor TMR1348

Description TMR1348 is an omnipolar magnetic switch integrated the tunneling magnetoresistance (TMR) magnetic sensor and CMOS circuitry, which is able to detect the change of magnetic field and output high and low voltage signals for high accuracy position detection. Unlike Hall/AMR sensors, TMR sensors with extremely high resistance values allows TMR1348 to achieve the supply current as low as 1.5 μA while operating in the full-time power supply mode, and maintaining high-speed operation with the response frequency at 1 kHz. Therefore, TMR1348 can provide true continuous detection of magnetic field signals, avoiding sampling errors from the traditional time-sharing power supply mode. TMR1348 allows a wide range of operating supply voltages from 1.8 V to 5.5 V with excellent temperature characteristics, and can meet the requirements of most applications. SOT23-3 Features and Benefits Tunneling magnetoresistance (TMR) technology High sensitivity High frequency response: typ.1 kHz Omnipolar operation Wide range supply voltages: 1.8 V to 5.5 V Open-drain output Low power consumption: supply current 1.5 μA Excellent temperature stability High tolerance to external magnetic field interference RoHS & REACH compliant AEC-Q100 qualified MSL1 Applications Utility meters: water, gas, and heat meters Proximity switches Speed sensing Linear and rotation position sensing Wake-up switch Liquid level sensors