TMAG5231 Low-Voltage Low-Noise Hall Effect Switch

Product Highlights > TMAG5231 Low-Voltage Low-Noise Hall Effect Switch

            TMAG5231 Low-Voltage Low-Noise Hall Effect Switch
                    Texas Instruments' low-power magnet sensor is designed for battery-operated consumer and industrial applications
    

Image of TMAG5231 Low-Voltage Low-Noise Hall Effect Switch Texas Instruments' TMAG5231 is a 2nd-generation, low-power Hall effect switch sensor that is designed to optimize the total system cost for compact, battery-operated consumer and industrial applications. When the applied magnetic flux density exceeds the operating point (BOP) threshold, the device outputs a low voltage. The output stays low until the flux density decreases to less than the release point (BRP), and then the device outputs a high voltage.

The Omnipolar magnetic response allows the output to be sensitive to north and south magnetic fields. The TMAG5231 can operate at a very low current consumption. To achieve 2 μA of current consumption, the device is internally power-cycled at a 20 Hz rate. The TMAG5231 is available in the industry-standard package and pinout SOT-23. The device operates at a V_CC range of 1.65 V to 5.5 V and a temperature range of -40°C to +125°C.

Features

Low power consumption: 2 µA at 3 V (20 Hz versions)
Operating V_CC range: 1.65 V to 5.5 V
Magnetic threshold option (typ. BOP): 2.85 mT with 1.35 mT hysteresis
Omnipolar response

Push-pull output
Industry-standard package and pinout SOT-23 package
Operating temperature range: -40°C to +125°C

Applications

Cell phones, laptops, or tablet case sensing
Electricity meter tamper detection
E-locks
Smoke detectors
Home appliance open/close detection

Medical devices
IoT systems
Valve and solenoid position detection
Contactless diagnostics or activation