ams AS5047U - High Resolution Rotary Position Sensor

Longevity January 2031
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Longevity January 2031

Description

The AS5047U 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 at higher rotational speed. For increased signal quality at lower rotational speed, the dynamic filter system (DFS ™) reduces transition noise.
The robust design of the device suppresses the influence of any
homogenous external stray magnetic field. A standard 4-wire
SPI serial interface with a CRC protection allows a host
microcontroller to read 14-bit absolute angle position data
from the AS5047U 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 16989 steps / 4096 pulses per
revolution.
Brushless DC (BLDC) motors are controlled through a standard
UVW commutation interface with a programmable number of
pole pairs from 1 to 7. The absolute angle position is also
provided as PWM-encoded output signal.
AS5047U are single die sensors and are available in a TSSOP14
Package.

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Details

Features

  • DAEC ™ Dynamic angle error compensation
  • DFS ™ Dynamic filter system
  • Magnetic stray field immunity
  • Independent output interfaces: SPI, ABI, UVW, PWM

Benefits

  • Easy to use – saving costs on DSP
  • Higher durability and lower system costs (no shield needed)
  • Versatile choice of the interface

Ordering codes

Product Type Description Order No. Availability
AS5047U-HTSM
AS5047U-HTST

Downloads

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Datasheets

AS5047U DS000637

Datasheet

User guides

Application note

Technical documents

Lifecycle documents

Images