XENSIV™ - TLE4955C-E4 magnetic speed sensor based on Hall technology with excellent air-gap performance
The Infineon XENSIV differential Hall sensor IC from Infineon detects the motion of tooth and magnet encoder applications. To detect the motion of ferromagnetic objects, the magnetic field must be provided by a back biasing permanent magnet. Either south or north pole of the magnet can be attached to the rear unmarked side of the IC package.The magnetic measurement is based on three equally spaced Hall elements, integrated on the IC. Both magnetic and mechanical offsets are cancelled by a self calibration algorithm. The sensor includes a current output PWM protocol. The magnetic sensor provides high magnetic sensitivity. TLE4955C-E4 includes a sophisticated algorithm which actively suppresses vibration while keeping excellent air-gap performance.
Summary of Features
High magnetic sensitivity
Large operating airgap
Two wire PWM current interface
Fast start-up
Dynamic self calibration principle
Adaptive hysteresis
Detection of rotation direction
High vibration suppression capability
From zero speed up to 12 kHz
Wide operating temperature ranges
High resistance to piezo effects
Single chip solution
Magnetic encoder and ferromagnetic wheel application
South and north pole pre-induction possible
Module style package with integrated overmolded capacitor
1.8 nF between V DD and GND
Potential Applications
Transmission applications with two wire PWM output current interface
XENSIV™ - TLE4955C-E4 magnetic speed sensor based on Hall technology with excellent air-gap performance
The Infineon XENSIV differential Hall sensor IC from Infineon detects the motion of tooth and magnet encoder applications. To detect the motion of ferromagnetic objects, the magnetic field must be provided by a back biasing permanent magnet. Either south or north pole of the magnet can be attached to the rear unmarked side of the IC package.The magnetic measurement is based on three equally spaced Hall elements, integrated on the IC. Both magnetic and mechanical offsets are cancelled by a self calibration algorithm. The sensor includes a current output PWM protocol. The magnetic sensor provides high magnetic sensitivity. TLE4955C-E4 includes a sophisticated algorithm which actively suppresses vibration while keeping excellent air-gap performance.
Summary of Features
- High magnetic sensitivity
- Large operating airgap
- Two wire PWM current interface
- Fast start-up
- Dynamic self calibration principle
- Adaptive hysteresis
- Detection of rotation direction
- High vibration suppression capability
- From zero speed up to 12 kHz
- Wide operating temperature ranges
- High resistance to piezo effects
- Single chip solution
- Magnetic encoder and ferromagnetic wheel application
- South and north pole pre-induction possible
- Module style package with integrated overmolded capacitor
- 1.8 nF between V DD and GND
Potential Applications
- Transmission applications with two wire PWM output current interface
