The TMAG5170D-Q1 IC is based on the Hall-effect technology and precision mixed signal circuitry from Texas Instruments. The output signals (raw X, Y, Z magnetic data and die temperature data) is provided through the SPI. The device can be configured in multiple settings through user access registers in the SPI.
The IC consists of the following functional and building blocks:
- The Power Management & Oscillator block contains a low-power oscillator, biasing circuitry, undervoltage and overvoltage detection circuitry, and a fast oscillator.
- The sensing and temperature measurement block contains the Hall biasing, Hall sensors with multiplexers, noise filters, integrator circuit, temperature sensor, and the ADC. The Hall sensor data and temperature data are multiplexed through the same ADC.
- The Interface block contains the SPI control circuitry, ESD protection circuits, and all the I/O circuits. The TMAG5170D-Q1 supports SPI along with an integrated cyclic redundancy check (CRC).
- The diagnostic blocks are embedded in the circuitry to enable mandatory and user-enabled diagnostic checks.