Rotary 14-bit position sensor for high-speed 360-degree requirements

10-08-2015 | Mouser Electronics | Test & Measurement

Available now from Mouser, the ams AS5047P 14-bit magnetic rotary position
sensor is designed for high speed (up to 28krpm) angle measurement over a
full 360 degree range.

The AS5047P is equipped with revolutionary integrated dynamic angle error
compensation (DAEC) with almost zero latency. It offers a robust design
that 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 AS5047P 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 4000 steps/1000 pulses per revolution in decimal mode and 4096
steps/1024 pulses per revolution in binary mode. The resolution of the ABI
signal is programmable and can be reduced to 100 steps/25 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.

Typical applications include BLDC motor commutation, factory / building
automation, robotics, permanent magnet synchronous motors, stepper motors
and optical encoder replacement.

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