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AS5045B Rotary Sensor

12-bit rotary position sensor with digital angle (interface) and PWM and ABI output

Features

  • Contactless absolute angle position measurement and motion sensing
  • User programmable zero position
  • Multiple interfaces (SSI, ABI, PWM)
  • Immune to external magnetic stray fields

Benefits

  • Highest reliability and durability in harsh environments
  • Great flexibility during assembly
  • One device for different applications
  • Lower material cost (no magnetic shielding needed)

Product parameters

Resolution [bit] 12
Interfaces SSI
Output Digital angle (interface) / ABI / PWM
Max. Speed [rpm]
Overvoltage Protection
Redundant
Supply Voltage [V] 3.3 or 5.0
Temperature Range [°C] -40 to +125
Package SSOP-16
Automotive Qualified

General Description

The AS5045B is a 12-bit rotary position sensor (previously known as encoder) for absolute angular measurement and with an incremental output over a full turn of 360° based on contactless magnetic sensor technology. This device fits perfectly for on-axis applications where a simple 2-pole magnet rotates above or below the sensor IC and the zero position can be programmed into the device. The absolute magnet angular position is measured with a resolution of 12 bit = 4096 positions per revolution and it is provided as a digital value on the serial interface (SSI) and on the PWM output signal.

This product suits for the following applications:

  • Motor speed and motion sensor
  • Replacement of optical magnetic position sensors
  • Automatic doors
  • Robotics

Tools

Title Category Headline Buy
AS5045BAdapterBoard Application Board Adapter Board for AS5045B
SD4Y-PP Accessories Production Programmer SD4Y
RMH05-DK-XX Accessories Rotary Magnetic Holder
AS5000Programmer Accessories AS5000 Programmer for Position Sensors

Technical Documents

Name Type Description Version Language
AS5045B_BD000349_1-00.png Block Diagram AS5045B Block Diagram 1-00 English
AS5045B_DS000397_2-00.pdf Datasheet Document version 2-00 2-00 English
AS5045B_PD000212_1-00.png Other Product Document AS5045BAdapterBoard Image 1-00 English
SD4Y-PP_PD000332_1-00.png Other Product Document SD4Y-PP Image 1-00 English
AS5000Programmer_PD000456_1-00.jpg Other Product Document AS5000 Programmer Image 1-00 English
AS5045B_UG000215_1-00.pdf User Guide Adapter board 1-00 English
AS5xxx_UG000387_1-00.pdf User Guide SD4Y Production Programmer Manual 1-00 English
AS5xxx_UG000386_1-00.pdf User Guide AS5xxx Rotary Magnet Holder 1-00 English

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