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High-performance linear Hall-effect sensor IC

The MLX91377 is a high-performance linear Hall-effect sensor IC designed to meet the requirements of demanding applications such as steering torque sensing and other safety-critical automotive or industrial systems.

The MLX91377 includes a Hall element, signal conditioner, digital signal processor, and a flexible output stage offering analog, SENT, or Short PWM Code (SPC) output. Multi-point magnetic field linearization and magnet drift compensation ensures high performance and accuracy at room temperature and throughout the operating range of -40 °C to 160°C. Robustness to external disturbances and transient voltages is confirmed by the wide absolute maximum ratings including a supply and output voltage range of -18 to 28V.

High-performance linear Hall-effect sensor IC

The MLX91377 is a high-performance linear Hall-effect sensor IC designed to meet the requirements of demanding applications such as steering torque sensing and other safety-critical automotive or industrial systems. The MLX91377 includes a Hall element, signal conditioner, digital signal processor, and a flexible output stage offering analog, SENT, or Short PWM Code (SPC) output.

Multi-point magnetic field linearization and magnet drift compensation ensures high performance and accuracy at room temperature and throughout the operating range of -40 °C to 160°C. Robustness to external disturbances and transient voltages is confirmed by the wide absolute maximum ratings including a supply and output voltage range of -18 to 28V.

MLX91377 Features and benefits

  • High accuracy with low thermal drift
  • Flexible output options with analog, SENT, or SPC
  • Multi-point (up to 32) programmable for high accuracy
  • ISO26262 ASIL-C Safety Element out of Context for digital output, ASIL-B Safety Element out of Context capable for analog output
  • Dual die, fully redundant TSSOP-16 package RoHS compliant for redundancy in safety-critical, high-availability systems
  • High performance linear Hall-effect sensor IC
  • On-chip signal processing for robust and accurate sensing
  • Programmable measurement range
  • Programmable linear transfer characteristic (4 or 8 multi-points or 16 or 32 Piece-Wise-Linear)
  • Selectable Short PWM Code (SPC) or analog output modes
  • SAE J2716 APR2016 SENT
  • 48-bit programmable ID number
  • AEC Q-100 Grade 0 qualified
  • Programmable with the PTC-04 and the PTC-04-DB-HALL06 daughterboard

MLX91377 Application Examples

  • Steering Torque Sensor
  • Acceleration, Brake, or Clutch Sensor
  • Absolute Linear Position Sensor
  • Float-Level Sensor
  • Non-Contacting Potentiometer
  • Small Angle Position Sensor
  • Small Stroke Position Sensor
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