Infineon Technologies TLI4966G XENSIV™ Double Hall Switch
Infineon TLI4966G XENSIV™ Double Hall Switch is a switch with two output pins for applications with a rotating pole wheel. The sensor provides a speed and direction signal at the interface pins. This information can be directly used to realize a robust index counting system for anti-pinch prevention. The standard solution for index counting is realized by two Hall Latches. The TLI4966G comprises two integrated Hall plates enabling a small and cost-effective system with only one sensor.
The fixed distance of the Hall plates ensures the optimal solution to cancel out mounting uncertainties and reduces overall system tolerances. The built-in direction detection is reliable and provides with each index step a valid direction signal. Additional development of algorithms for direction detection becomes obsolete.
The speed and direction signals of the XENSIV™ TLI4966G can be fed directly into the capture/compare unit of a standard µController. This feature ensures a fast and easy system setup. The speed signal comes directly from the two integrated Hall elements, while the direction detection is calculated by a µController. The monolithic solution ensures minimal tolerances and a highly reliable system.
A lot of index counting sensors operate at remote locations. The Infineon TLI4966G family is equipped with robust supply and I/O pins that allow system designers to realize remote sensor modules with a minimum of additional hardware components.
Features
- 2.7V to 24V supply voltage operation
- Operation from an unregulated power supply
- High sensitivity and high stability of the magnetic switching points
- High resistance to mechanical stress by Active Error Compensation
- Reverse battery protection (-18V)
- Superior temperature stability
- Peak temperatures up to 125°C without damage
- Low jitter (Typ. 1μs)
- Digital output signals
- Bipolar version
- Excellent matching between the 2 Hall probes
- Hall plate distance 1.45mm
- Direction and speed information
- Direction signal switches before the speed signal
- SMD package PG-TSOP6-6-9
Applications
- Power closure systems for anti-pinch detection
- Garage doors
- Electric shutters
- Sunblinds
- Automated doors
Block Diagram
