ams AS5247U - High Resolution Rotary Position Sensor

Longevity January 2031
×
Longevity January 2031

설명

The AS5247U is a high-resolution redundant rotary position sensor for fast absolute angle measurement over a full 360-degree range. This position sensor is equipped with a 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 AS5247U 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.

The AS5247U supports embedded self-diagnostics for fulfilling up to ASIL D in safety relevant applications. The device is using the ams stacked die technology in a TQFP-32 (7x7) package.

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.

세부 정보

조건

Resolution
14 bit
Interface
output
SPI (16MHz)
PWM
Rotation speed
max.
28000 rpm
Die in package
dual
Supply voltage
5 V
Operating ambient temperature
min.
-40 °C
max.
150 °C
Package
TQFP32
Automotive qualified
AEC-Q100
ASIL qualified
ASIL D
Accuracy typ.
0.5 °
Function
angle sensing

다운로드

데이터시트

Datasheet

사용 설명서

애플리케이션 노트

기술 문서

환경 문서

라이프사이클 문서