Overview
The TMAG5273A1QDBVR, produced by Texas Instruments, is a low-power linear 3D Hall-effect sensor designed for a wide range of industrial and personal electronics applications. This device integrates three independent Hall-effect sensors in the X, Y, and Z axes, providing precise measurements of magnetic fields. It features a precision analog signal-chain along with an integrated 12-bit ADC to digitize the measured analog magnetic field values. The sensor is equipped with 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 | - |
| Magnetic Field Range (TMAG5273x1) | ±40 mT, ±80 mT | - |
| Magnetic Field Range (TMAG5273x2) | ±133 mT, ±266 mT | - |
| Sensitivity Drift | 5% (typical) | - |
| Single Axis Conversion Rate | 20 kSPS | - |
| Supply Voltage Range | 1.7 V to 3.6 V | - |
| Operating Temperature Range | –40°C to +125°C | - |
| I2C Clock Speed | Up to 1 MHz | - |
Key Features
- Configurable power modes including active, wake-up, and sleep modes to optimize power consumption.
- Selectable linear magnetic range at X, Y, or Z axis with different field strengths.
- Interrupt signal from user-defined magnetic and temperature threshold cross.
- Integrated angle CORDIC calculation with gain and offset adjustment for full 360° angular position information.
- 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 special I2C frame reads for improved throughput.
- Factory-programmed and user-configurable I2C addresses.
- Integrated temperature compensation for multiple magnet types and a built-in temperature sensor.
Applications
- Electricity meters
- Electronic smart locks
- Smart thermostats
- Joystick and gaming controllers
- Drone payload control
- Door and window sensors
- Magnetic proximity sensors
- Mobile robot motor control
- E-bike applications
Q & A
- What is the TMAG5273A1QDBVR?
The TMAG5273A1QDBVR is a low-power linear 3D Hall-effect sensor produced by Texas Instruments.
- What are the key power modes of the TMAG5273A1QDBVR?
The device features active, wake-up, and sleep modes with currents of 2.3 mA, 1 µA, and 5 nA respectively.
- What are the magnetic field ranges available for the TMAG5273?
The TMAG5273 offers magnetic field ranges of ±40 mT, ±80 mT, ±133 mT, and ±266 mT.
- What is the sensitivity drift of the TMAG5273?
The sensitivity drift is typically 5%.
- What is the single axis conversion rate of the TMAG5273?
The single axis conversion rate is 20 kSPS.
- What is the supply voltage range of the TMAG5273?
The supply voltage range is from 1.7 V to 3.6 V.
- What is the operating temperature range of the TMAG5273?
The operating temperature range is from –40°C to +125°C.
- Does the TMAG5273 support I2C communication?
- What are some common applications of the TMAG5273?
- Does the TMAG5273 have integrated temperature compensation?
