EVB90393

MLX90393 Triaxis Magnetic Node Datasheet 1. Features and Benefits 3. Description Absolute Position Sensor IC featuring The MLX90393 brings the highest flexibility in the Triaxis Hall Technology Triaxis portfolio s smallest packaged assembly. Simple & Robust Magnetic Design Additionally, the MLX90393 is designed for micropower applications, with programmable Miniature size for tiny assemblies duty cycles in the range of 0.1% to 100% allowing 2 Selectable SPI and I C bus protocols for configurable power consumption based on system requirements. Wide dynamic range (5-50mT) with on-the- fly programmable gain The MLX90393 magnetic field sensor can be 2.2V-3.6V supply for battery powered reprogrammed to different modes and with applications, down to 1.8V IO voltage different settings at run-time to fine-tune the performance and power consumed. The sensor On board filter settings offers a 16-bit output proportional to the On the fly programmable operating modes magnetic flux density sensed along the X, Y, and Z and sleep times for micro-power use axes using the Melexis proprietary Triaxis technology and offers a 16-bit temperature External and internal acquisition triggering output signal. These digital values are available via modes 2 I C and SPI, where the MLX90393 is a slave on the External interrupt pin when the field bus. Multiple sensors can be connected to the changes same bus, by A and A hardwired connection (4x) 0 1 but also through ordering codes with different SW On board temperature sensor address (4x). By selecting which axes are to be measured, the raw data can be used as input for further post- processing, such as for joystick applications, rotary knobs, and more complex 3D position sensing applications. Unparalleled performance is achieved with this sensor, which is primarily targeting industrial and consumer applications. VDD VDD IO A0 A1 2. Application Examples State Machine SDA/ MOSI Non-contacting HMI applications with Bias RAM EEPROM SCL/ SCLK VX push-pull functionality VY Triaxis MISO VZ Control ADC SPI/ I2C G VT Interface MS/ CS Rotary knobs & dials Temp Compensation Interrupt Temp Sensor Trigger (Long stroke) Linear motion in one or two axes for levers & sliding switches Low Power Oscillator Wake-Up VSS Oscillator Joystick (gimbal or ball & socket) Home Security 3D closure detection Figure 1: General Block Diagram Accurate liquid level sensing Factory automation position sensing Magnetic fingerprint detection REVISION 007 JAN 14, 2021 3901090393 MUXMLX90393 Triaxis Magnetic Node Datasheet Contents 1. Features and Benefits ............................................................................................................................... 1 2. Application Examples ................................................................................................................................ 1 3. Description ............................................................................................................................................... 1 4. Ordering Information ............................................................................................................................... 5 5. Functional Diagram .................................................................................................................................. 6 5.1. QFN-16 Block Diagram ..................................................................................................................... 6 5.2. UTDFN-8 Block Diagram ................................................................................................................... 6 6. Glossary of Terms ..................................................................................................................................... 7 7. QFN-16 Pinout .......................................................................................................................................... 8 8. UTDFN-8 Pinout ........................................................................................................................................ 9 9. Absolute Maximum Ratings .................................................................................................................... 10 10. General Electrical Specifications ........................................................................................................... 11 11. Thermal Specification ........................................................................................................................... 12 12. Timing Specification ............................................................................................................................. 13 13. Magnetic Specification ......................................................................................................................... 14 13.1. Noise vs Conversion Time ............................................................................................................ 16 14. Mode Selection ..................................................................................................................................... 17 14.1. Burst mode ................................................................................................................................... 18 14.2. Single Measurement mode ......................................................................................................... 18 14.3. Wake-Up on Change mode .......................................................................................................... 19 15. Digital Specification .............................................................................................................................. 19 15.1. Command List .............................................................................................................................. 20 15.2. Status Byte ................................................................................................................................... 21 15.3. SPI Communication ...................................................................................................................... 22 15.3.1. Command implementation .................................................................................................... 22 15.3.2. SPI Timing Specification ......................................................................................................... 24 2 15.4. I C Communication ...................................................................................................................... 24 15.4.1. Command Implementation .................................................................................................... 25 2 15.4.2. I C Timing Specification ......................................................................................................... 27 16. Memory Map ........................................................................................................................................ 28 16.1. General Description ..................................................................................................................... 28 REVISION 007 JAN 14, 2021 Page 2 of 43 3901090393