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Texas Instruments TMAG5253 Low-Power Linear Hall-Effect Sensors

Texas Instruments TMAG5253 Low-Power Linear Hall-Effect Sensors are designed to respond proportionally to magnetic flux density. The TMAG5253 offers an enable pin to enter ultra-low power (nA) shutdown mode. The TMAG5253 supplies a fast start-up time (<25µs) developed for low-power position sensing applications. The device is engineered in an industry-leading 1.54mm2 ultra-small footprint for space-constrained applications. The sensors have a vast supply range and can operate from 1.65V to 3.6V.

The TI TMAG5253 utilizes a ratiometric architecture to eliminate errors from VCC tolerance when the external analog-to-digital converter (ADC) uses the same VCC for reference. Furthermore, the device features magnet temperature compensation to counteract the magnetic sensitivity drifts across a wide range of temperatures, from 40°C to 125°C. The device also allows the output to be placed in a high-impedance state during shutdown mode. This mode enables multiple devices to be connected to a single ADC.

Features

  • Industry-leading low power:
    • 1.65V to 3.6V supply voltage, VCC
    • <20nA (1.8V at 25°C) shutdown current
    • 2mA (1.8V at 25°C) active current
    • <10µA at 100Hz duty cycling average current
  • Dedicated enable pin
  • <25µs fast power-on time
  • Ratiometric analog output proportional to VCC
  • High impedance output during shutdown mode
  • Low-noise output with ±1mA drive
  • Wide operating temperature range of -40°C to 125°C
  • Bipolar sensitivity option to support both positive and negative magnetic fields
  • Magnetic sensitivity range options:
    • A1: ±20mT range
    • A2: ±40mT range
    • A3: ±80mT range
    • A4: ±160mT range
  • Sensitivity compensation to support temperature drift of Neodymium magnet
  • 1.54mm2 Ultra-small X2SON 4-pin package

Applications

  • Gaming controller and peripherals
  • Magnetic proximity sensor
  • Mobile robot motor control
  • Cordless power tools
  • Vacuum robots
  • Drone payload control

Additional Resources

Typical Schematic

Schematic - Texas Instruments TMAG5253 Low-Power Linear Hall-Effect Sensors

Functional Block

Block Diagram - Texas Instruments TMAG5253 Low-Power Linear Hall-Effect Sensors

Hall Element Location

Location Circuit - Texas Instruments TMAG5253 Low-Power Linear Hall-Effect Sensors

Related Development Tool

Texas Instruments TMAG5253EVM Sensor Evaluation Module (EVM)

Enables users to assess the performance of the TMAG5253 low-power, linear Hall-effect sensor.

Learn Moreacerca de Texas Instruments TMAG5253EVM Sensor Evaluation Module (EVM) View Productsrelacionado con Texas Instruments TMAG5253EVM Sensor Evaluation Module (EVM)
Publicado: 2024-02-15 | Actualizado: 2024-10-23