TLE5010 Datasheet, PDF (7/56 Pages) Infineon Technologies AG – GMR Based Angular Sensor

TLE5010
Draft
1.2
Target Applications
Angular position sensing in automotive applications like:
• Steering Angle
• Brushless DC Motor Commutation (e.g. EPS)
• Rotary Switch
• General Angular sensing in automotive applications
Overview
1.3 Product Description
The TLE5010 is a 360° angle sensor, which detects the orientation of a magnetic field.
This is achieved by measuring sine and cosine angle components with monolithic
integrated GMR elements (Giant Magnetic Resistance).
Data communication is done with a bi-directional SSC interface (SPI compatible).
The sine and cosine values can be read out. These signals can be digitally processed
to calculate the angle orientation of the magnetic field (magnet). This calculation can be
done by using a cordic algorithm.
It is possible to connect more than one TLE5010 to one SSC Interface of a µC for
redundancy or any other reasons.
In this case the synchronization of the connected TLE5010 is done by a broadcast
command.
Each connected TLE5010 can be addressed by a dedicated chip select CS pin.
Online diagnostic functionalities are provided to ensure a reliable operation.
These are
• Angle Test (generated via test voltages feeding the ADC).
• Crossed signal paths (switchable for comparison)
• Inverted signs of bit streams
• Over and undervoltage detections
Preliminary Data Sheet
7
V 0.9, 2007-05