Infineon KP254XTMA1: High-Performance Current Sensor for Automotive and Industrial Applications

The demand for precise and reliable current sensing is paramount in modern electronic systems, particularly in the high-stakes environments of automotive and industrial applications. Addressing this critical need, the Infineon KP254XTMA1 stands out as a high-performance Hall-effect current sensor designed to deliver exceptional accuracy, robustness, and integration.

At the core of the KP254XTMA1's innovation is its coreless Hall-effect technology. This design eliminates the need for a magnetic concentrator core, which is traditionally a source of non-linearities, hysteresis, and saturation effects. By forgoing the core, Infineon has achieved a sensor with extremely low offset and gain drift over temperature and time. This results in highly precise DC, AC, and pulsed current measurements with a total output error typically below 2.5% across the entire operating temperature range. The device offers a choice of three sensitivity ranges (50, 75, or 100 mV/A), providing design flexibility for various current levels.

The automotive-grade qualification of the KP254XTMA1 underscores its robustness. It is engineered to thrive in the harsh under-the-hood environments of modern vehicles, making it an ideal solution for e-mobility applications such as:

Battery Management Systems (BMS): Accurately monitoring charge and discharge currents.

Inverters for Electric Power Steering (EPS) and Braking: Ensuring precise motor control for critical safety functions.

On-board Chargers (OBC) and DC-DC Converters: Enabling efficient power conversion.

Beyond the automotive sector, this sensor is equally potent in industrial applications. Its high accuracy and reliability are crucial for:

Industrial Motor Drives and Control: Providing feedback for precise speed and torque regulation.

Power Supplies and UPS Systems: Monitoring load currents for protection and management.

Solar Inverters and Renewable Energy Systems: Optimizing energy harvesting and conversion efficiency.

A key feature of the KP254XTMA1 is its integrated busbar. The current path is incorporated directly into the package (PG-TDSO-8), simplifying PCB design, minimizing parasitic effects, and enhancing the mechanical stability of the entire sensing solution. This high level of integration, combined with its galvanic isolation, allows for safe measurement of high currents in systems with significantly different ground potentials, protecting downstream circuitry.

ICGOOODFIND: The Infineon KP254XTMA1 is a premier coreless current sensor that sets a new benchmark for performance in demanding sectors. Its exceptional accuracy, driven by coreless Hall technology, integrated design, and automotive-grade durability, makes it a superior choice for engineers developing next-generation electric vehicles and robust industrial systems.

Keywords: Coreless Hall-effect, Automotive-grade, Galvanic Isolation, Current Sensing, High Accuracy.