Trade Shows

 
26.02. - 28.02.2019, Nuremberg

 

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Magnetic field sensor for battery powered applications
Low power and wide voltage supply 3D magnetic field sensor IC enables maximum flexibility on the choice of the battery.
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The MLX90397 brings the Triaxis® Hall magnetic-sensing technology to cost-conscious white goods, smart metering, gaming & home-security sectors.

Design

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).

 

Develope

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.

App

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

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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)

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Martin Wesseling
Martin WesselingLine Management SenseThis email address is being protected from spambots. You need JavaScript enabled to view it.
Melexis
Siretta

T: +49 (0) 2129 376-216
F: +49 (0) 2129 376-209