Infineon – TLE4966 Speed & Direction Sensor
The TLE4966 Hall Sensor family are double Hall Switches with two output pins for applications with a rotating pole wheel. The fix distance of the Hall plates realized on-chip ensure the optimal solution to cancel out mounting uncertainties and reduce overall system tolerances. Depending on product variant, the sensor provides either a speed and direction signal at the interface pins or two speed signals related to the switching of the two Hall elements.
The TLE4966K/L and TLE4966 -3K can be directly used to realize a robust index counting system. Additional development of algorithms for direction detection becomes obsolete. The built in direction detection is reliable and provides with each index step a valid direction signal.
The speed and direction signals of TLE4966K/L and TLE4966 -3K can be fed directly into the capture/compare unit of a standard μController. This ensures fast and easy system set up. The TLE4966-2K on the other hand has two phase shifted indexing signal outputs. These signals comes directly from the two integrated Hall elements. The direction detection can be calculated by a μController. The monolithic solution ensures minimal tolerances and a highly reliable system.
A lot of index counting sensors have to operate at remote locations. Therefore the TLE4966 family is equipped with robust supply and I/O pins that allows system designers to realized remote sensor modules with a minimum of additional hardware components.
Features and Benefit
- Wide range of supply voltage
- 2.7–18V
- Operation at unregulated power supply
- Over & reverse voltage robustness
- -18–24V
- Reliable switching even in harsh environments
- Active error and stress compensation
- Compensation of temperature effects
- -40°C to 150°C operating range
- Integrated speed & direction detection
- Package variety
- Small 6 pin SMD package – TSOP6-6
- Leaded 4 pin PG-SSO-4 package
- Fix 1.45mm distance of the Hall plates
Application Fields
- Index counting
- Rotational speed and direction detection
- Motor driven positioning systems
- Window lifter
- Power closing systems
- Sun blinds
- Garage door
