XENSIV™ TLE4978 Current Sensor Evaluation Boards

Introduction

Infineon Technologies XENSIV™ TLE4978 Current Sensor Evaluation Boards provide a practical platform for evaluating high-bandwidth, high-precision current sensing in electronic power systems. Available in versions supporting either 56 A peak or 67.5 A peak current measurement, these boards help engineers assess the performance of the TLE4978 sensor family before integrating it into a final design.

Part Description

The TLE4978EVAL50ATOBO2 and TLE4978EVAL60ATOBO2 are evaluation boards built around Infineon XENSIV™ TLE4978 current sensors. They are designed to measure current accurately while supporting fast-changing signals commonly found in switching power electronics, motor-control systems, and battery-powered equipment.

Each board includes a pre-calibrated current sensor, reducing setup effort and enabling more consistent evaluation results. The boards provide an analog output that can be connected to an oscilloscope, analog-to-digital converter, microcontroller, or control loop. Integrated overcurrent detection and zero-crossing functionality provide additional support for protection, timing, and current-direction-related applications.

An onboard 5 V low-dropout regulator simplifies power supply requirements during testing. Programmable settings allow users to configure operating behavior and explore the sensor’s capabilities under a range of system conditions.

Key characteristics include:

• Evaluation platform for Infineon XENSIV™ TLE4978 current sensors
• 56 A peak current capability for the TLE4978EVAL50ATOBO2
• 67.5 A peak current capability for the TLE4978EVAL60ATOBO2
• High-bandwidth, high-precision current measurement
• Analog output interface
• Integrated overcurrent detection
• Zero-crossing detection capability
• Onboard 5 V LDO regulator
• Programmable operating settings
• Pre-calibrated sensor implementation

Applications

Potential applications for the TLE4978 evaluation boards include:

• Motor current measurement
• Brushless DC motor control
• AC motor inverter testing
• Battery current monitoring
• Power converter development
• DC-DC converter current feedback
• Solar inverter current sensing
• Uninterruptible power supply monitoring
• Overcurrent protection evaluation
• Switched-mode power supply design
• Current waveform analysis
• Zero-crossing detection in power-control circuits

Industries

These current sensor evaluation boards can be useful in a variety of industries, including:

• Automotive electronics
• Industrial automation
• Renewable energy
• Power generation and distribution
• Robotics
• Consumer appliances
• Electric mobility
• Battery and energy-storage systems
• Telecommunications infrastructure
• Smart-building systems
• Test and measurement equipment
• Research and development laboratories

Usage Ideas

1. Motor Drive Current Monitor

Use the evaluation board to measure phase current in a small motor-drive prototype. Connect the analog output to a microcontroller ADC or oscilloscope to observe current behavior during startup, acceleration, load changes, and fault conditions.

2. DC-DC Converter Protection Test

Install the board in the input or output current path of a DC-DC converter. Use the overcurrent detection feature to evaluate how quickly the control system can identify and respond to excessive current events.

3. Battery-Powered System Energy Study

Integrate the board into a battery-powered prototype to monitor current draw during active, standby, and peak-load operating modes. The measured analog signal can help optimize power consumption and validate battery-sizing calculations.

Conclusion

Infineon XENSIV™ TLE4978 Current Sensor Evaluation Boards offer a convenient development platform for examining precise, high-bandwidth current sensing at currents up to 56 A peak or 67.5 A peak. With pre-calibrated sensors, analog output, programmable settings, overcurrent detection, zero-crossing capability, and onboard regulation, these boards are well suited for rapid prototyping and performance evaluation in power electronics, motor control, battery management, and industrial sensing applications.