TI TMAG5231C1DQDMRR

The TMAG5231 is a second-generation, low-power Hall-effect switch sensor designed to reduce the total system cost of compact, battery-powered consumer and industrial applications. When the applied magnetic flux density exceeds the operating point (B₀P) threshold, the device outputs a low voltage. The output remains low until the magnetic flux density drops below the release point (Bᵣₚ), after which the device outputs a high voltage. The omnipolar magnetic response makes the output sensitive to both north and south magnetic fields.

The TMAG5231 can operate with ultra-low current consumption. To achieve a current consumption of 2 μA, the device powers on and off internally at a frequency of 20 Hz. The TMAG5231 comes in the industry-standard packages and pinouts of SOT - 23 and X2SON. The device can operate normally within a Vcc range of 1.65 V to 5.5 V and an extended operating temperature range of -40 °C to 125 °C.

The TMAG5231 device is a magnetic sensor with a digital output that indicates when the magnetic flux density threshold is exceeded. It includes a push-pull output that goes low in the presence of a magnetic field or high in the absence of a magnetic field. As an omnipolar switch, the output is sensitive to both north and south poles. The device integrates a Hall-effect element, analog signal conditioning, and a low-frequency oscillator to achieve ultra-low average power consumption. To achieve low power consumption, the device periodically measures the magnetic flux density, updates the output, and enters a low-power sleep state. The device has a power supply voltage range of 1.65 V to 5.5 V and is designed for battery-powered applications.

• Low power consumption:
  • 10Hz version: 1.3μA (at 3V)
  • 20Hz version: 2μA (at 3V)
  • 216Hz version: 16μA (at 3V)
• 1.65V to 5.5V operating Vcc range
• Magnetic threshold options (typical BOP):
  • 1.8mT (0.6mT hysteresis)
  • 2.85mT (1.35mT hysteresis)
  • 3mT (0.8mT hysteresis)
  • 40mT (6.5mT hysteresis)
• Omnipolar response
• Push-pull output
• Industry-standard package and pinout:
  • SOT-23 package
  • X2SON package
• Operating temperature range: -40℃ to +125℃

• Mobile phone, laptop, or tablet case sensing
• Electricity meter tamper detection
• Electronic locks
• Smoke detectors
• Home appliance switch detection
• Medical devices
• IoT systems
• Valve and solenoid position detection
• Non-contact diagnostics or activation