Infineon TLI4963-1M: A High-Precision Hall-Effect Latch for Demanding Automotive and Industrial Applications

The relentless drive towards greater efficiency, reliability, and intelligence in automotive and industrial systems places increasing demands on sensing technology. At the heart of many position and speed detection applications lies a critical component: the Hall-effect sensor. The Infineon TLI4963-1M stands out as a high-precision Hall-effect latch engineered specifically to meet the stringent requirements of these environments, offering a blend of accuracy, robustness, and integration that makes it a premier choice for designers.

This sensor operates on the Hall-effect principle, where a voltage difference is generated across a conductor when subjected to a magnetic field. As a "latch," its output state switches between high and low upon reaching specific magnetic threshold levels (Bop and Brp) and remains stable even after the magnetic field is removed. This digital, bistable characteristic is ideal for detecting rotational speed, as in wheel speed sensing for ABS and traction control systems, or for determining the position of camshafts, gear teeth, and brushless DC motor rotors.

What truly distinguishes the TLI4963-1M is its exceptional performance metrics tailored for harsh conditions. It features an ultra-high sensitivity with an extremely tight switch-point tolerance, ensuring consistent and reliable switching points across the entire temperature range and production volume. This precision is paramount for applications requiring accurate timing, such as engine management.

Furthermore, the device is designed with robustness at its core. It incorporates comprehensive protection functions, including reverse voltage protection on the supply pin and overvoltage protection on both supply and output pins. Its high immunity to ESD (Electrostatic Discharge) and stress from mechanical package influences guarantees long-term operational integrity. For the automotive world, this translates directly to enhanced system safety and reliability, contributing to ASIL-ready system designs.

The integrated nature of the TLI4963-1M simplifies design-in. The sensor requires very few external components and comes in a small, yet rugged SMD package (PG-SSO-3-3), making it suitable for space-constrained applications while enduring harsh vibrations. Its low power consumption is an additional benefit for energy-sensitive systems.

ICGOODFIND: The Infineon TLI4963-1M is a superior Hall-effect latch that sets a high benchmark for precision and durability. Its combination of tight switch-point tolerance, robust built-in protection, and automotive-grade qualification makes it an indispensable component for developers building next-generation, reliable automotive and industrial control systems.

Keywords: Hall-Effect Latch, Automotive Grade, High-Precision, Magnetic Sensor, Robust Protection.