Overview
The TMAG5273A2QDBVT is a low-power linear 3D Hall-effect sensor designed by Texas Instruments. This device is tailored for a wide range of industrial and personal electronics applications. It integrates three independent Hall-effect sensors in the X, Y, and Z axes, along with a precision analog signal-chain and an integrated 12-bit ADC to digitize the measured analog magnetic field values. The sensor features an I2C interface that supports multiple operating VCC ranges, ensuring seamless data communication with low-voltage microcontrollers. Additionally, it includes an integrated temperature sensor for various system functions such as thermal budget checks and temperature compensation calculations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Active Mode Current | 2.3 | mA |
| Wake-up and Sleep Mode Current | 1 | µA |
| Sleep Mode Current | 5 | nA |
| Linear Magnetic Range (X, Y, Z axis) | ±40 mT, ±80 mT (TMAG5273x1), ±133 mT, ±266 mT (TMAG5273x2) | mT |
| Single Axis Conversion Rate | 20 kSPS | - |
| I2C Clock Speed | 1 MHz | - |
| Supply Voltage VCC Range | 1.7 V to 3.6 V | V |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | SOT-23 (DBV) | - |
| Number of Pins | 6 | - |
Key Features
- Configurable power modes including active, wake-up, and sleep modes with respective currents of 2.3 mA, 1 µA, and 5 nA.
- Selectable linear magnetic range at X, Y, or Z axis: ±40 mT, ±80 mT (TMAG5273x1), and ±133 mT, ±266 mT (TMAG5273x2).
- Interrupt signal from user-defined magnetic and temperature threshold cross.
- 5% (typical) sensitivity drift.
- Integrated angle CORDIC calculation with gain and offset adjustment for full 360° angular position information.
- 20 kSPS single axis conversion rate.
- Configurable averaging up to 32x for noise reduction.
- Conversion trigger by I2C or dedicated INT pin.
- Optimized I2C interface with cyclic redundancy check (CRC) and maximum 1-MHz I2C clock speed.
- Integrated temperature compensation for multiple magnet types and built-in temperature sensor.
Applications
The TMAG5273A2QDBVT is suitable for a wide range of industrial and personal electronics applications. These include but are not limited to:
- Industrial automation and control systems.
- Consumer electronics requiring precise magnetic field measurements.
- Automotive systems for position sensing and angle measurement.
- Medical devices that require accurate and low-power magnetic sensing.
- IoT devices and smart home applications where low power consumption is crucial.
Q & A
- What is the TMAG5273A2QDBVT?
The TMAG5273A2QDBVT is a low-power linear 3D Hall-effect sensor designed by Texas Instruments for various industrial and personal electronics applications.
- What are the configurable power modes of the TMAG5273A2QDBVT?
The device has configurable power modes including active mode (2.3 mA), wake-up and sleep mode (1 µA), and sleep mode (5 nA).
- What are the selectable linear magnetic ranges for the TMAG5273A2QDBVT?
The device offers selectable linear magnetic ranges at X, Y, or Z axis: ±40 mT, ±80 mT (TMAG5273x1), and ±133 mT, ±266 mT (TMAG5273x2).
- What is the single axis conversion rate of the TMAG5273A2QDBVT?
The single axis conversion rate is 20 kSPS.
- What is the maximum I2C clock speed supported by the TMAG5273A2QDBVT?
The maximum I2C clock speed is 1 MHz.
- What is the operating temperature range of the TMAG5273A2QDBVT?
The operating temperature range is –40°C to +125°C.
- Does the TMAG5273A2QDBVT have integrated temperature compensation?
Yes, the device includes integrated temperature compensation for multiple magnet types and a built-in temperature sensor.
- How does the TMAG5273A2QDBVT handle noise reduction?
The device supports configurable averaging up to 32x for noise reduction.
- What is the purpose of the dedicated INT pin on the TMAG5273A2QDBVT?
The dedicated INT pin can act as a system interrupt during low power wake-up and sleep mode and can also trigger a new sensor conversion by a microcontroller.
- Does the TMAG5273A2QDBVT support user-configurable I2C addresses?
Yes, the device supports factory-programmed and user-configurable I2C addresses.
