MLX91218LDC-ARX-301-RE

Current Sensors Overview

The MLX91218LDC-ARX-301-RE is a monolithic Hall-effect current sensor IC featuring IMC-Hall technology and dual Over Current Detection (OCD). It offers a 400kHz bandwidth with a 2µs response time. The device operates on a flexible supply voltage of 3.135V to 3.465V, consuming a maximum of 18mA. Sensitivity is factory-set at 14mV/mT with ±0.5% linearity. It provides an analog ratiometric voltage output in an 8-SOIC package, supporting bidirectional measurement across -40°C to 150°C.

Current Sensors Feature Summary

• Dual Over Current Detection (OCD) functionality for enhanced system protection
• IMC-Hall technology utilizing U-shaped shields for high stray field immunity
• Factory calibrated linear transfer characteristic over the full operating temperature range
• High signal-to-noise ratio designed to simplify module design

Current Sensors Applications

• Motor control systems requiring fast switching response
• Inverter modules for power conversion
• Converter applications demanding high bandwidth sensing

Current Sensors Procurement Notes

Verify the specific suffix ARX-301-RE against the manufacturer datasheet to confirm the exact supply voltage configuration (3.3V or 5V mode) and sensitivity settings. Ensure compatibility with the recommended U-shaped ferromagnetic shield for optimal performance in high-bandwidth applications. Confirm that the 8-SOIC package dimensions align with the target PCB footprint and thermal requirements.

Current Sensors Selection Notes

Select this component for applications requiring high-speed current sensing up to 400kHz. The IMC-Hall architecture allows for smaller, lighter magnetic cores compared to traditional iron cores while maintaining signal integrity. Consider the programmable offset and sensitivity features if terminal customer calibration is required. The dual OCD feature provides hardware-level protection without additional circuitry.

Current Sensors Part Context

This part belongs to the MLX91218 series of IMC-Hall current sensors. It shares the core technology with variants like MLX91218LDC-ARX-300-TU but differs in packaging and specific factory configurations. The series is designed for automotive and industrial markets, offering robust reliability and AEC-Q100 compliance where applicable.

Current Sensors Replacement Considerations

MLX91218LDC-ARX-300-TU is a related variant within the same family. Verify pinout compatibility and ensure the alternative part supports the required 400kHz bandwidth and OCD functionality. Check if the supply voltage configuration matches the system design.