The MLX90397 brings the Triaxis® Hall magnetic-sensing technology to cost-conscious white goods, smart metering, gaming & home-security sectors.
The device, especially designed for micropower battery powered applications, measures magnetic fields along the 3 axis X, ,Y and Z (Y being in a plane parallel to the surface of the die, Z being perpendicular to the surface).
Those measurements and the IC temperature are converted into 16-bit words which are transferred upon request over I2C communication channel. The device transmits compensated raw measurement data of the selected Bx, By, Bz or a combination.
The MLX90397 is designed for position sensor applications with a +/-50mT range and an adaptative range on Bz of +/-200mT.
MLX90397 Application examples:
Battery-powered applications
Knobs for White goods
Joystick with back-bias magnet
Power tools - Screwdriver trigger
Anti-tamper for energy metering
Home security - door/ window opening detection
Gaming
Provide angle computation stability versus temperature variations, magnetic and mechanical tolerances
Over 1 Billion Triaxis® in the field
Features and Benefits
Micropower (Battery applications)
Power down current of typ. 7 nA
Supply voltage of 1.7 ~ 3.6 V
Suitable for space constrained applications
UTDFN-8 package (JEDEC qualified) 2 mm x 2,5 mm x 0.4 mm
Compatible with I2C (0.1, 0.4 or 1 MHz)
Best in class signal-to-noise
(SNR) (typ. RMS noise of 2µT)
Programmable parameters on the fly
BX, BY, BZ, temperature or a combination.
Filtering.
Selectable operating modes: single measurement or continuous mode up to 1.4 kHz (XYZ)
Ambient temperature range from -40℃ to 105℃
Digital 16-bit Output for magnetic and temperature (XYZT)