Infineon Technologies AS5047U Rotary Position Sensor

Infineon Technologies AS5047U Rotary Position Sensor is a Hall-effect magnetic sensor using CMOS technology. The Hall sensors convert the magnetic field component perpendicular to the chip surface into a voltage. The AS5047U Sensor is designed to offer fast absolute angle measurement over a full 360° range. The 14-bit on-axis magnetic rotary position sensor features integrated Dynamic Angle Error Compensation (DAEC™) with near-zero latency at higher rotational speeds. To improve signal quality at lower rotational speeds, the Dynamic Filter System (DFS™) reduces transition noise. The robust design of the AS5047U Sensor suppresses the influence of any homogenous external stray magnetic field. A standard four-wire SPI serial interface with Cyclic Redundancy Check (CRC) protection allows a host microcontroller to read 14-bit absolute angle position data and program non-volatile settings without a dedicated programmer. 

The AS5047U provides incremental movement data as a set of Actinic Blank Inspection (ABI) signals with a maximum resolution of 16,989 steps and 4096 pulses per revolution. The resolution of the ABI output can be programmed to 10- 14 bits. This device also includes a standard UVW commutation interface with programmable pole pairs (1 to 7), ideal for controlling Brushless DC (BLDC) motors. The absolute angle position is also provided as a Pulse Width Modulation (PWM) encoded output signal. 

The single-die Infineon AS5047U Magnetic Rotary Position Sensor is offered in a 14-pin Thin Shrink Small Outline Package (TSSOP) and is Infineon green and RoHS compliant.

Features

  • DAEC (Dynamic Angle Error Compensation)
  • DFS (Dynamic Filter System)
  • Magnetic stray field immunity
  • SPI, ABI, UVW, and PWM independent output interfaces
  • 14-bit resolution
  • 2800rpm maximum speed
  • 4mA maximum output current
  • 35mT to 70mT operating point range
  • Overvoltage protection
  • 3.3V or 5.0V supply voltage
  • -40°C to +125°C operating temperature range
  • TSSOP-14 package type
  • RoHS compliant and Green

Applications

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

Videos

Block Diagram

Block Diagram - Infineon Technologies AS5047U Rotary Position Sensor

Pin Designations

Mechanical Drawing - Infineon Technologies AS5047U Rotary Position Sensor

Socket Board

The Infineon AS5x47-TS_EK_SB Socket Board allows quick programming of the AS5047D and AS5147 Magnetic Rotary Position Sensors without soldering, thanks to its ZIF Open-Top-Socket for TSSOP packages. The AS5x47-TS_EK_SB Socket Board features a 5-pin dual-row connector for
connecting to the USB I&P Box, and a 10-pin dual-row connector for connecting to the SD4Y Production Programmer. An 8-pin header gives access to UVW, ABI, and GND signals. All passive components needed for proper operation are included on the Socket Board. Only a 5V power supply mode is possible.

USB I&P Box

The AS5x47U Adapter Board and AS5x47-TS_EK_SB Socket Board can be used with the optional USB I&P (Interface & Programmer) Box, which enables users to read out the sensor data, write a configuration, and permanently program a configuration.

SD4Y Programmer

Infineon SD4Y Programmer is designed for high-speed programming AS5x4x, AS5x3x, and AS514x Magnetic Position sensors. The SD4Y Programmer features a 20-pin connector that connects to the AS5x47U Adapter Board or AS5x47-TS_EK_SB Socket Board. A USB cable connects the Programmer to a PC, where a Graphic User Interface (GUI) is used to program the target device.

Published: 2019-07-05 | Updated: 2026-07-15