SLYU065 March 2023 TMAG6180-Q1 , TMAG6181-Q1
TMAG6180 and TMAG6181 are each magnetic sensors built on anisotropic magnetoresistive (AMR) sensing technology. Typically, AMR sensors are only able to resolve 180 degree rotation, but with addtional integrated Hall-effect sensing, each sensor produces both sine and cosine differential outputs which are used to measure the absolute angular position of a rotating magnet. Each sensor is capable of detecting a full 360 degree rotation unlike typical AMR sensors. TMAG6180 provides additonal outputs Q0 and Q1 which can be used to determine the quadrant of rotation, while TMAG6181 provides a pulse width moduled (PWM) turns counter output that increments or decrements at each quadrant change. Using the information from these outputs, extending the 180 degree output to a full 360 position calculation is possible.
| PRODUCT | INPUT RANGE | ANALOG OUTPUTS | DIGITAL OUTPUTS | SUPPLY VOLTAGE RANGE |
|---|---|---|---|---|
| TMAG6180-Q1 | 20 mT - 1T | Differential Sine and Cosine | Q0 and Q1 Quadrant | 2.7 V - 5.5 V |
| TMAG6181-Q1 | 20 mT - 1T | Differential Sine and Cosine | TURNS | 2.7 V - 5.5 V |
TMAG6180 is installed on the top side of the EVM and TMAG6181 is installed directly opposite on the bottom. During use with the EVM Graphical User Interface (GUI) differential outputs are sampled by an on-board ADS8354 which transmits the output readings over SPI to the TI sensor control board (TI-SCB).