Infineon's new TLE496x Hall sensor family comprises three series: TLE4961, TLE4964 and TLE4968. All derivatives operate at an extended temperature range from -40 °C to 170 °C. With switching thresholds ranging from +1 mT/-1 mT (switches), +/-2 mT to +/-15 mT (latches) and 2.5/3.5 mT to 22.5/28 mT (unipolar switches), they cover a very wide switching threshold range for latches and unipolar switches.
The TLE4961-x series offers a range of different latches. They are ideal for measuring the position of BLDC motors and pole wheels in index counting and speed measurement applications. Typical uses include window lifts and sunroofs in vehicles. The TLE4964-x series comprises unipolar switches. These are the perfect fit for applications in gearshift levers, car seats, and HVAC. The bipolar switches in the TLE4968-x series have very low magnetic thresholds (high sensitivity of +/-1 mT) and bipolar switching behavior. This makes them ideal for precise measurements of rotor positions in BLDC motors and for speed and position measurements in camshafts and transmissions.
All three series (TLE4961-x, TLE4964-x and TLE4968-x) and the different derivate devices are in high volume production. The TLE496x family is available in the extremely small SOT23 package as well as the SC59 (SMD) package and the leaded SSO-3 package.
Features
- 3.0 V to 32 V operating supply voltage
- Operation from unregulated power supply
- Reverse polarity protection (-18 V)
- Overvoltage capability up to 42 V without external resistor
- Low current consumption (1.6 mA)
- Output overcurrent and overtemperature protection
- Highly stable magnetic thresholds over temperature and lifetime
- Leaded package PG-SSO3-2
- Small SMD package (SOT23, SC59)
- Can be registered and ordered
Applications
- Key automotive applications
- Window lifter (index counting)
- Power closing (index counting)
- Gear stick (position detection)
- Seat belt (position detection)
- BLDC (motor commutation)
- Key industrial applications
- General purpose position detection (e.g. in automation or door position)
- BLDC motor commutation (e.g. power tools or industrial fans)
- Index counting (e.g. robotics or power closing systems)
