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MA102/302 replaces 3 Hall switches in BLDC motor commutation

27/08/2021

These MagAlpha sensors are available in a small QFN (3mm x 3mm) package, providing flexibility for highly compact designs. Changing to a single MA102 or MA302 reduces board space by up to 70% with no need for a separate target magnet.

Main Features

MA102

  • 12-Bit Repeatability of UVW Outputs
  • Contactless Sensing for Long Life
  • SPI Serial Interface for 8-Bit Angle Readout and Chip Configuration
  • UVW Signals for Block Commutation with 1 to 8 Pole Pair Emulation Using a 2-Pole Magnet, Complement /UVW Signals Provided for Differential Signaling
  • Programmable Magnetic Field Strength Detection for Diagnostic Checks
  • Linearization for Side-Shaft Mounting
  • 3.3V, 12mA Supply
  • -40°C to +125°C Operating Temperature
  • Available in a QFN-16 (3mmx3mm) Package

MA302

  • 12-Bit Resolution Absolute Angle Encoder
  • Contactless Sensing for Long Life
  • SPI Serial Interface for Digital Angle Readout and Chip Configuration
  • Incremental 10-Bit ABZ Quadrature Encoder Interface with Programmable Pulses Per Turn from 1 to 256
  • UVW Interface with 1 to 8 Pole Pair Emulation
  • Programmable Magnetic Field Strength Detection for Diagnostic Checks
  • 3.3V, 12mA Supply
  • -40°C to +125°C Operating Temperature
Documents Tech question
Schermafbeelding 2021 08 27 122821 Ma102 tac 1

MA102/302 replaces 3 Hall switches in BLDC motor commutation

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Applications & Markets

  • 11 Motor Control

    Motor Control

  • 8 Instrumentation

    T&M and instrumentation

  • 5 Industrial Automation

    Factory & Industrial Automation, Robotics

Technologies

  • 48 shutterstock 1642185091

    Motion/motor control

  • Shutterstock 755896279

    Analog, mixed signal & sensor ICs

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Documents

  • MA102
  • MA302 GQ Z
Pexels thisisengineering 3913017

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