Monolithic Power Systems (MPS) MagAlpha™ MA780 Low-Power Angle Sensor
Monolithic Power Systems (MPS) MagAlpha™ MA780 Low-Power Angle Sensor is used to detect the absolute angular position of a permanent magnet. For example, a diametrically magnetized cylinder on a rotating shaft. This sensor, with its power-cycling ability, is suitable for applications requiring low average power. The timing can be controlled via an on-chip clock or external controller. Flags are available for detecting a definable amount of angle change. The MA780 supports a wide range of magnetic field strengths and spatial configurations. Both end-of-shaft and off-axis (side-shaft mounting) configurations are supported. On-chip, non-volatile memory (NVM) provides storage for configuration parameters, including the reference zero angle position, power-cycling parameters, and the filter window affecting the output resolution.The Monolithic Power Systems (MPS) MagAlpha MA780 Low-Power Angle Sensor is available in a 3mm x 3mm QFN-16 package.
Features
- 8-bit to 12-bit resolution absolute contactless angle encoder
- 1µA current consumption in idle mode
- 10mA current consumption in active mode
- Internal or external power-cycling control
- Warning on change flags
- SPI serial interface for digital angle readout and chip configuration
- 3.3V supply
- -40°C to +125°C operating temperature
- Available in a QFN-16 (3mm x 3mm) package
Applications
- General-purpose angle measurement
- Battery-powered devices
- Multi-turn encoders
- Low-power rotary knob interfaces
Videos
Typical Application Circuit
发布日期: 2021-04-13
| 更新日期: 2022-07-05
