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AS5047D Rotary Position Sensor

14-bit On-Axis Magnetic Rotary Position Sensor with 11-bit Decimal & Binary Incremental Pulse Count

The AS5047D is a high-resolution rotary position sensor for fast absolute angle measurement over a full 360-degree range. This new position sensor is equipped with revolutionary integrated dynamic angle error compensation (DAEC™) with almost 0 latency and offers a robust design that suppresses the influence of any homogenous external stray magnetic field. A standard 4-wire SPI serial interface allows a host microcontroller to read 14-bit absolute angle position data from the AS5047D and to program non-volatile settings without a dedicated programmer. The resolution of the incremental ABI interface is programmable with a maximum resolution of 2000 steps / 500 pulses per revolution in decimal mode and 2048 steps / 512 pules per revolution in binary mode.

AS5047D Magnetic Rotary Position Sensor Block Diagram

Key Features

  • DAECН Dynamic angle error compensation
  • 14-bit core resolution
  • ABI programmable decimal and binary pulse-count (500, 400, 300, 200, 100, 50, 25, 8, 512, 256 ppr)
  • Zero position, configuration programmable
  • Independent output interfaces: SPI, ABI, UVW, PWM
  • Immune to external stray field

Key Benefits

  • Easy to use - saving costs on DSP
  • Good resolution for motor & position control
  • Simple optical encoder replacement
  • No programmer needed (via SPI command)
  • Versatile choice of the interface
  • Lower system costs (no shielding)

Applications

The AS5047D is ideally suited to support BLDC motor commutation for the most challenging industrial applications such as building automation, factory automation, PMSM (permanent magnet synchronous motor), robotics, and stepper motors closed loop in as well optical encoder replacement.

AS5047D Product Facts

Resolution 14-bit / 11-bit
Interfaces SPI
Output ABI, UVW, PWM
Max speed [rpm] 14500
Overvoltage protection [ ]
Redundant
Supply voltage [V] 3.3 or 5.0
Temperature range [°C] -40 to +125
Package TSSOP-14
Automotive qualified