Melexis MLX90427 Triaxis® Magnetic Position Sensor ICs
Melexis MLX90427 Triaxis® Magnetic Position Sensor ICs consist of a Triaxis® Hall magnetic front end, an analog-to-digital signal conditioner, a DSP for advanced signal processing, and an output stage driver. These monolithic magnetic position sensor ICs are sensitive to three (BX, BY, and BZ) flux density components applied to the IC. This allows the MLX90427 to sense any magnet moving in its surroundings and decode its position through appropriate signal processing. Using a serial interface, the MLX90427 transmits a digital output (SP – 64-bits per frame).
The Melexis MLX90427 is intended for embedded position sensor applications (vs. stand-alone “Remote” sensor) for which the output is directly provided to a microcontroller (Master) close to the MLX90427 (Slave). The SPI protocol confirms this. The MLX90427 uses a full duplex SPI protocol and requires separated SPI signal lines, including MOSI, MISO, /CS, and SCLK.
The MLX90427 is also tailored for embedded position sensor applications requiring high functional safety levels. Next to offering customer stray field immunity and EMC robustness, the cost-effective MLX90427 features an SPI output with four distinct modes. It includes a rotary, joystick, and rotary stray field with internal angle computation alongside one mode for raw data output.
Features
- Triaxis® Hall technology
- On-chip signal processing for robust position sensing
- ISO26262 ASIL C safety element out of context
- AEC-Q100 qualified (Grade 0)
- High-speed serial interface (SPI compatible, full duplex)
- 16-bit RISC μController based digital signal processing
- Enhanced self-diagnostics
- 5V and 3V3 application compatible
- 14-bit output resolution
- 48-bit ID number
- Single-die SOIC-8 and dual-die TSSOP-16 (fully redundant) package options
- -40°C to +160°C operating temperature range
- RoHS-compliant
Applications
- Absolute contactless position sensors
- Steering wheel position sensors
- 3D joystick position sensors
Videos
Triaxis Motion
Block Diagram
Publié le: 2024-05-21
| Mis à jour le: 2024-11-04