ams AS5247 Position Sensor Dual-Die

Longevity January 2031
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Longevity January 2031

설명

The AS5247 is a high-resolution redundant 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 AS5247 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 2048 steps / 512 pulses per revolution. The resolution of the ABI signal is programmable to 1024 steps / 256 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 AS5247 supports embedded self-diagnostics including magnetic field strength too high, magnetic field strength too low or lost magnet, and other related diagnostic features. The AS5247 is available as a dual die in a compact MLF-40 7x7 package.

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세부 정보

조건

Resolution
14 bit
11 bit
Interface
output
PWM
ABI
UVW
SPI
Rotation speed
max.
14500 rpm
Die in package
dual
Operating ambient temperature
min.
-40 °C
max.
150 °C
Package
MLF40
Automotive qualified
AEC-Q100
ASIL qualified
ASIL D
Accuracy typ.
0.4 °
Function
on-axis angle position sensing
Sensing technology
magnetic

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