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AS5147P High Speed Position Sensor

14-bit on-axis magnetic rotary position sensor with 12-bit binary incremental pulse count

Features

  • DAEC™ dynamic angle error compensation
  • Immune to external stray magnetic field
  • 14-bit core resolution
  • Maximum speed up to 28000 rpm
  • Developed per ISO 26262 SEooC

Benefits

  • Eliminates angle measurement lag at high RPMs
  • Lower system costs (no shielding)
  • High resolution for motor and position control
  • No programmer needed (via SPI command)
  • Enables ASIL-x system safety level compliance

Product parameters

Resolution [bit] 14 or 12
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 +150
Package TSSOP-14
Automotive Qualified

General Description

The AS5147P 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 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 AS5147P 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 4096 steps / 1024 pulses per revolution. The product is defined as SEooC (Safety Element out of Context) according ISO26262 including FMEDA, safety manual and third party qualification.

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:

  • Safety-critical automotive systems (EPS, brake, etc.)
  • Resolver replacement
  • Discrete hall commutation feedback replacement
  • Servo motor position control
  • BLDC/PMSM motor commutation (pumps, DCT, starter, alternator, wiper, etc.)

Tools

Title Category Headline Buy
AS5x47SocketBoard Application Board Socket Board for AS5x47
AS5x47PMotorBoard Application Board Motor Board for AS5x47P
AS5147PAdapterBoard Application Board Adapter Board for AS5147P
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 1-02 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
Material Declaration Form MDF_500430003_AS5147P-HTSM English
Material Declaration Form MDF_500430003_AS5147P-HTST English
RoHS Certificate RoHS Certificate AS5147P English

Notifications

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

Other Information

Type Description Language
Block Diagram AS5147P Block Diagram English
Factsheet Position Sensor Example for Motor Position and Commutation using AS5147P English
Factsheet Contactless Magnetic Position Sensing for Motor Control English
Factsheet High-Speed, High-Resolution Rotary Position Sensor English
Factsheet 高速高分辨率旋转位置传感器 Chinese
Factsheet Accurate Position Sensing in demanding Automotive Applications English

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