AS5161 Position Sensor

12-bit rotary position sensor with PWM output and overvoltage protection

Features

  • 360º contactless high resolution angular position sensing
  • User programmable start and end point of the application region
    Saw tooth mode 1-4 slopes per revolution
    Clamping levels
    Transition point
  • Broken GND and VDD detection for all external load cases
  • 12-bit pulse width modulated (PWM) output
  • Wide temperature range: - 40°C to 150°C

Benefits

  • Great flexibility on angular excursion
  • Simple programming
  • Failure diagnostics
  • High-resolution output signal
  • Ideal for applications in harsh environments due to contactless position sensing

Product parameters

Resolution [bit] 12
Interfaces
Output PWM
Max. Speed [rpm]
Overvoltage Protection Yes
Redundant
Supply Voltage [V] 5.0
Temperature Range [°C] -40 to +150
Package SOIC-8
Automotive Qualified Yes

General Description

The AS5161 is a contactless Hall-based magnetic position sensor for very accurate angular measurement over a full turn of 360°. It is a compact integrated solution which provides the absolute angle measurement with a resolution of 0.09° over a full revolution as PWM output signal. The internal 14-bit core of the AS5161 enables a fine programming of the start and stop positions with a resolution of 0.02° to allow the finest system mechanical adjustments.

With two decades of magnetic sensor system know-how, we have broad experience in selecting the most suitable magnets. ams experts recommend the following magnet suppliers.

This product suits for the following applications:

  • Height control in chassis ride
  • Pedal position sensing
  • Throttle position sensing
  • Tumble flaps
  • Transmission gearbox position sensor
  • Valve position sensing

Tools

Title Category Headline Buy
AS5x6xEvalKit Application Board Evaluation Kit for AS5x6x
AS5161AdapterBoard Application Board Adapter Board for AS5161
AS5161SocketBoard Application Board Socket Board for AS5161
SD4Y-PP Accessories Production Programmer SD4Y
RMH05-DK-XX Accessories Rotary Magnetic Holder
AS5xxx-EK-USB-PB Accessories Programming Board for AS5xxx

Resources

Type Description Language
Evaluation Software AS5x6x_EvalSW_AS5xxx-EK-USB-PB_v2-0-1-7.zip AS5x6x-Software for Evaluation Board (UART Programmer) EN

Technical Documents

Type Description Language
Datasheet Document version 1-04 English
Application Note Configuration on ECU-side English
Application Note AN5000 Magnet Selection Guide v1-04 English
Application Note Tape & Reel Packing Information English
User Guide UART interfaceboard English
User Guide Programming example English

Environmental Documents

Type Description Language
Material Declaration Form MDF_186210101_AS5161A-ASOP English
Material Declaration Form MDF_186210049_AS5161-HSOP English
Material Declaration Form MDF_186210049_AS5161-HSOM English

Notifications

Type Description Language
Product Change Notification PCN38-2018 (AS50xx, AS51xx, AS52xx, AS54xx, AS8xxx) English

Other Information

Type Description Language
Block Diagram AS5161 Block Diagram English
Factsheet Magnetic Position Sensor English

Related Products