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AS5045 Rotary Sensor

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

Features

  • Contactless absolute angle position measurement
  • User programmable zero position
  • Diagnostic modes for magnet detection and power supply loss
  • Immune to external magnetic stray fields

Benefits

  • Highest reliability and durability in harsh environments
  • Great flexibility during assembly
  • Operation safety
  • Lower material cost (no magnetic shielding needed)

Product parameters

Resolution [bit] 12
Interfaces SSI
Output Digital angle (interface) / 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 AS5045 is a 12-bit rotary position sensor (previously known as encoder) for absolute angular measurement and with a PWM (=pulse width modulation) 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:

  • Angle sensor
  • Replacement of potentiometers
  • Front panel rotary knob
  • Robotics

Tools

Title Category Headline Buy
AS5045AdapterBoard Application Board Adapter Board for AS5045
AS5045DemoKit Application Board Demo Kit for AS5045
SD4Y-PP Accessories Production Programmer SD4Y
RMH05-DK-XX Accessories Rotary Magnetic Holder
AS5000Programmer Accessories AS5000 Programmer for Position Sensors

Resources

Name Type Description Language
AnglePositionOnAxis_SW000203_1-00.zip Software Firmware v1.64 (SD4Y Programmer) English
AS5000_SW000256_1-00.zip Software Firmware V1.5.4.0 (AS5000Programmer) English

Technical Documents

Name Type Description Version Language
AnglePositionOnAxis_AN000271_2-00.pdf Application Note AN5000 Magnet Selection Guide v1-04 2-00 English
PositionSensors_AN000304_1-00.pdf Application Note Tape & Reel Packing Information 1-00 English
AS5045_BD000210_1-00.png Block Diagram AS5045 Block Diagram 1-00 English
AS5045_DS000101_2-00.pdf Datasheet Document version 2-01 2-00 English
AS5030_AS504x_AS53xx_EN000132_1-00.pdf EoL Notification AS50xx_AS53xx_tubes (issued 2017-Jun) 1-00 English
AS5045_FS000103_2-00.pdf Factsheet Absolute Digital 2-00 English
AS5045_PD000368_1-00.png Other Product Document AS5045AdapterBoard Image 2 1-00 English
AS5045_PD000367_1-00.png Other Product Document AS5045AdapterBoard Image 1 1-00 English
AS5045_PD000211_1-00.png Other Product Document AS5045DemoKit Image 1-00 English
AS5000Programmer_PD000456_1-00.jpg Other Product Document AS5000 Programmer Image 1-00 English
SD4Y-PP_PD000332_1-00.png Other Product Document SD4Y-PP Image 1-00 English
AS5030_AS504x_AS53xx_PD000181_1-00.pdf Other Product Document AS50xx_AS53xx_tubes (issued 2017-Jun) 1-00 English
AS5045_UG000108_1-00.pdf User Guide Adapter PCB 1-00 English
AS5x40_AS5x45_UG000214_1-00.pdf User Guide Adapter board V2.1 AS5x40/AS5x45 1-00 English
AS5045_AS5145_UG000227_1-00.pdf User Guide Demo board 1-00 English
AS5000_UG000124_1-00.pdf User Guide Programming tool 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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