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MLX90333 Datasheet
The datasheet gives more technical information on the MLX90333: a monolithic sensor IC featuring the Tria?is™ Hall technology. Conventional planar Hall
technology is only sensitive to the flux density applied orthogonally to the IC surface. The Tria?is™ Hall
sensor is also sensitive to the flux density applied parallel to the IC surface. This is obtained through an
Integrated Magneto-Concentrator (IMC®) which is deposited on the CMOS die (as an additional back-end
step).
The MLX90333 is sensitive to the 3 components of the flux density applied to the IC (BX, BY and BZ). This
allows the MLX90333 to sense any magnet moving in its surrounding and it enables the design of novel
generation of non-contacting joystick position sensors which are often required for both automotive and
industrial applications (e.g. man-machine interface).
Furthermore, the capability of measuring BX, BY and BZ allows the MLX90333 to be considered as
universal non-contacting position sensor i.e. not limited to joystick applications. For instance, a linear
travel can be sensed with the MLX90333 once included in a specific magnetic design.
In combination with the appropriate signal processing, the magnetic flux density of a small magnet (axial
magnetization) moving above the IC can be measured in a non-contacting way (Figure 3). The two (2)
angular information are computed from the three (3) vector components of the flux density (i.e. BX, BY and
BZ). MLX90333 reports two (2) linear output signals. The output formats are selectable between Analog,
PWM and Serial Protocol.
Current Revision:
003
File Type:
DataSheet
File Size:
906.7 KB
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