TLE4998C8D: Programmable Linear Hall Sensor for Precision Current Sensing Applications

The TLE4998C8D represents a significant advancement in the field of precision current measurement, offering a highly integrated and programmable solution based on the Hall effect. Designed for demanding automotive and industrial applications, this sensor provides accurate, contactless current sensing, which is critical for system efficiency, safety, and control.

At its core, the device features a programmable signal conditioning path that allows engineers to tailor its performance to specific use cases. Key parameters such as sensitivity, output characteristic (ratiometric vs. fixed), bandwidth, and clamping levels can be digitally configured via a standard SENT (Single Edge Nibble Transmission) or PWM (Pulse Width Modulation) interface. This programmability eliminates the need for external trimming components, simplifies design-in, and reduces both board space and overall system cost.

A standout feature is its high accuracy and stability over temperature. The TLE4998C8D incorporates sophisticated internal compensation algorithms that counteract the inherent drift of the Hall plate and the magnetic circuit across a wide operating temperature range (-40°C to 160°C). This ensures reliable and precise measurements in harsh environments. Furthermore, the sensor provides a ratiometric analog output or a digital SENT output, offering flexibility for interfacing with microcontrollers or directly with analog-to-digital converters.

The primary application for the TLE4998C8D is in precision current sensing. It is ideally suited for monitoring currents in battery management systems (BMS), electronic power steering (EPS), braking systems, and inverter control in electric and hybrid vehicles. Its ability to measure both AC and DC currents without electrical contact to the main conductor provides crucial isolation, enhancing system safety and reliability.

ICGOODFIND: The TLE4998C8D is a versatile and robust programmable linear Hall sensor that sets a high standard for precision current sensing. Its combination of digital configurability, excellent temperature stability, and dual output options makes it an indispensable component for modern, high-reliability electronic systems in the automotive and industrial sectors.

Keywords:

Programmable Hall Sensor

Precision Current Sensing

SENT Interface

Temperature Compensation

Ratiometric Output