AS5047P datasheet(2/40 Pages) AMSCO

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[v1-00] 2014-Oct-31

AS5047P − General Description

Applications

The AS5047P is ideally suited to support BLDC motor

commutation for the most challenging industrial applications

such as factory automation, building automation, robotics,

PMSM (permanent magnet synchronous motor) and stepper

motors closed loop in as well optical encoder replacement.

Block Diagram

The functional blocks of this device for reference are

shown below:

Figure 2:

AS5047P Block Diagram

Simple optical encoder replacement

ABI programmable decimal and binary pulse-count:

1000,500,400,300,200,100,50,25,1024,512,256 ppr

No programmer needed (via SPI command)

Zero position, configuration programmable

Versatile choice of the interface

Independent output interfaces: SPI, ABI, UVW, PWM

Lower system costs (no shielding)

Immune to external stray field

Benefits

Features

VDD3V3

A/D

Volatile Memory

SPI

LDO

VDD

GND

CSn

MOSI

SCL

MISO

I/PWM

W / PWM

Analog

Front-End

UWV

ATAN

(CORDIC)

AGC

OTP

INTERPOLATOR

Hall

Sensors

PWM Decoder

Selectable

on I or W

ABI

Dynamic Angle

Error

Compensation

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