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AS5147 Rotary Sensor

14-bit on-axis magnetic rotary position sensor with 11-bit binary incremental pulse count

Features

  • DAEC™ dynamic angle error compensation
  • 14-bit core resolution
  • Independent output interfaces: SPI, ABI, UVW, PWM
  • Zero position, configuration programmable
  • Self-diagnostics
  • Immune to external stray field

Benefits

  • Easy to use – saving costs on DSP
  • Good resolution for motor and position control
  • Versatile choice of the interface
  • No programmer needed (via SPI command)
  • Supports safety challenging applications
  • Lower system costs (no shielding)

Product parameters

Resolution [bit] 14 or 11
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 +150
Package TSSOP-14
Automotive Qualified

General Description

The AS5147 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 a revolutionary integrated dynamic angle error compensation (DAEC™) with almost 0 latency. The robust design of the device 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 AS5147 and to program non-volatile settings without a dedicated programmer. The resolution of the ABI signal is programmable to 2048 steps / 512 pulses per revolution or 1024 steps / 256 pulses per revolution. The AS5147 has also a programmable UVW output and supports embedded self-diagnostics features.

With two decades of magnetic sensor system know-how, we have broad experience in selecting the most suitable magnets. ams experts recommend the following magnet suppliers.

This product suits for the following applications:

  • Electric power steering (EPS)
  • Transmission (gearbox, actuator)
  • Pump
  • Brake (actuator)
  • Starter and alternator

Tools

Title Category Headline Buy
AS5x47SocketBoard Application Board Socket Board for AS5x47
AS5x47DEvalKit Application Board Evaluation Kit for AS5x47D
AS5x47PMotorBoard Application Board Motor Board for AS5x47P
AS5147AdapterBoard Application Board Adapter Board for AS5147
USBI&PBox Accessories USB I&P Box for I2C/SPI
SD4Y-PP Accessories Production Programmer SD4Y
RMH05-DK-XX Accessories Rotary Magnetic Holder

Technical Documents

Type Description Language
Datasheet Document version 1-10 English
Application Note Redundancy Bit English
Application Note Communication Interfaces English
Application Note AN5000 Magnet Selection Guide v1-04 English
Application Note Tape & Reel Packing Information English

Environmental Documents

Type Description Language
RoHS Certificate RoHS Certificate AS5147 English

Notifications

Type Description Language
Product Change Notification PCN38-2018 (AS50xx, AS51xx, AS52xx, AS54xx, AS8xxx) English

Other Information

Type Description Language
Block Diagram AS5147 Block Diagram English
Factsheet DAEC™ Dynamic Angle Error Compensation English
Factsheet DAEC™ 动态角度误差补偿 Chinese
Factsheet Accurate Position Sensing in demanding Automotive Applications English
Factsheet Accurate Position Sensing in demanding Automotive Applications English
Factsheet Contactless Magnetic Position Sensing for Motor Control English
Other Product Document AS5147AdapterBoard Image English
Other Product Document AS5x47DEvalKit Image English
Other Product Document AS5x47PMotorBoard Image English
Other Product Document AS5x47SocketBoard Image English
Other Product Document USBI&PBox Image English

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