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AS5047P High-Resolution Position Sensor

14-bit on axis magnetic rotary position sensor

 
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The AS5047P is a high-resolution rotary position sensor for high speed (up to 28krpm) 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 AS5047P and to program non-volatile settings without a dedicated programmer. Incremental movements are indicated on a set of ABI signals with a maximum resolution of 4000 steps / 1000 pulses per revolution in decimal mode and 4096 steps / 1024 pulses per revolution in binary mode. The resolution of the ABI signal is programmable and can be reduced to 100 steps per revolution, or 25 pulses per revolution.

Key Features

  • Up to 28krpm
  • DAEC™ Dynamic angle error compensation
  • 14-bit core resolution
  • Immune to external stray fields
  • 12-bit incremental pulse count
  • Zero position, configuration programmable
  • ABI programmable decimal and binary pulse-count: 1000, 500, 400, 300, 200, 100, 50, 25, 1024, 512, 256 ppr
  • Independent output interfaces: SPI, ABI, UVW, PWM

Key Benefits

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

Product Facts

Resolution 14-bit / 12-bit
Interfaces SPI
Output SPI, ABI, UVW, PWM
Max speed [rpm] 28000
Overvoltage protection [ ]
Redundant
Supply voltage [V] 3.3 or 5.0
Temperature range [°C] -40 to +125
Package TSSOP-14
Automotive qualified

Additional Information

Applications

The AS5047P supports BLDC motor commutation for the most challenging industrial applications such as:

  • Factory automation
  • Building automation
  • Robotics
  • PMSM (permanent magnet synchronous motor)
  • Stepper motor closed loop
  • Optical encoder replacement