Texas Instruments TMAG5328 Low-Power Hall-Effect Switch

Texas Instruments TMAG5328 Low-Power Hall-Effect Switch is a high precision, low-power, resistor adjustable Hall effect switch sensor with a low operating voltage. The TMAG5328 external resistor sets the operational BOP value. Users can follow a simple formula to calculate the resistor value needed to set up the correct BOP value. The Hysteresis value is fixed; therefore, the BRP value is defined as BOP Hysteresis.

The TI TMAG5328 Low-Power Hall-Effect Switch utilizes the adjustable threshold feature for easy and quick prototyping, fast design to market, reuse across different platforms, and easy last-minute modifications in case of unexpected changes. The device outputs a low voltage when the applied magnetic flux density exceeds the BOP threshold. The output stays low until the flux density decreases to less than BRP, and then the output drives a high voltage. By incorporating an internal oscillator, the device samples the magnetic field and updates the output at a rate of 20Hz for the lowest current consumption. The TMAG5328 supports an omnipolar magnetic response.

The TMAG5328 is housed in a standard SOT-23-6 package and operates from a V_CC range of 1.65V to 5.5V.

Features

• Supply range of 1.65V to 5.5V
• Adjustable BOP from 2mT to 15mT
  • Using 2kΩ to 15kΩ resistors or 160mV to 1200mV voltage source
• Omnipolar Hall switch
• Push-Pull output
• Low power consumption
  • 1.4µA at 3.3V 20Hz sampling rate
• Industry-standard package and pinout
  • SOT-23 package
  • –40°C to 125°C operating temperature range

Typical Schematic

more information: https://www.ti.com/product/TMAG5328

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