EmbeddedRelated.com
    Parts    AS5047P-ATST-TSSOP14

IFXAS5047P-ATST

MPN: AS5047P-ATST-TSSOP14
Infineon Technologies
Rotary Encoder Optical SPI
Active
Digi-Key Compare Prices

Overview

The AS5047P is a high-resolution rotary position sensor designed for high-speed motor control applications. It utilizes Hall-effect technology to provide contactless angle measurements with high accuracy, supporting both SPI and PWM outputs. This sensor is specifically engineered to handle high rotational speeds while maintaining precise positional data.

Why Choose This Part

The sensor features DAEC (Dynamic Angle Error Compensation), which virtually eliminates measurement delay at high RPMs. It supports a 14-bit resolution SPI interface and is capable of operating in high-speed environments up to 28,000 RPM. Its contactless design ensures a long operational life compared to mechanical potentiometers or optical encoders.

Applications

BLDC Motor Commutation
Providing real-time rotor position feedback for brushless DC motors used in industrial and automotive systems.
Robotic Actuators
Ensuring precise angular control in robotic joints and precision motion systems.
Electric Power Steering
Measuring steering column angle and torque for automotive electronic steering assist.
Industrial Automation
Replacing mechanical encoders in harsh environments where dust and oil might interfere with optical sensors.

Key Specifications

Output Type SPI
Encoder Type Optical
Mounting Type Surface Mount
Voltage - Supply 4.5V ~ 5.5V

Getting Started

To begin development, use the AS5047P-TS_EK_AB adapter board which allows for easy breadboarding and connection to a microcontroller via SPI. Ensure the target magnet is diametrically magnetized and positioned within the recommended 0.5mm to 3mm air gap. Software implementation requires a standard 4-wire SPI configuration to read the 14-bit angle registers.

Also Consider

AS5600 ams OSRAM - A simpler, cost-effective 12-bit alternative for low-speed applications that require an I2C interface instead of SPI.
MA730 MPSMonolithic Power Systems (MPS) - A high-speed 14-bit magnetic encoder with MagAlpha technology offering low latency and a compact QFN package.
AS5048A ams OSRAM - Offers similar 14-bit resolution with high precision but is optimized for general-purpose high-accuracy angle sensing rather than high-speed motor commutation.