MLX90333 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

MLX90333

Triaxis 3D-Joystick Position Sensor

Unspecified 

MLX90333

Triaxis 3D-Joystick Position Sensor

2. Description

The MLX90333 is 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.

Figure 3 - Typical application of MLX90333

3901090333

Rev. Preliminary

Page 3 of 38

Data Sheet

May 07

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