Analog/Mixed Signal

3D magnetic pico-resolver introduced

01 July 2022
The MLX90381 comes in a 2mm x 2.5mm packaged and enables sensored mechatronic miniaturization. Source: Melexis

Melexis has introduced what it claims is the world’s first 3D magnetic pico-resolver designed for industrial and automotive applications.

The resolve comes in a 2 mm x 2.5 mm package and enables sensored mechatronic miniaturization and ASIL-ready is programmable at module level and suited for rotor position detection.

The device, MLX90381, combines the advantages of a small outline and reliable analog outputs providing sine and cosine signals. The resolver can be used for absolute rotary position sensing and leveraging its low latency and fast response measuring rotational speeds of more than 50,000 rpm.

The device can handle on-axis position sensing as well as off-axis through-shaft sensing. Sensitivity and filter bandwidth of each axis can be programmed directly through the device’s I2C interface.

The MLX90381 combines with Melexis’ family of smart embedded LIN drivers and it works with pre-drivers which are incorporated into:

  • Power blowers
  • Engine cooling fans
  • Pumps
  • Window lifters
  • Seat adjusters
  • Sunroofs
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