MLX91218LDC-ARX-501-TU

Current Sensors Overview

The MLX91218LDC-ARX-501-TU is a high-speed IMC-Hall current sensor IC manufactured by Melexis Technologies NV. It utilizes embedded Hall effect technology with an integrated magnetic concentrator to measure DC and AC currents. The device features a voltage supply range of 4.5V to 5.5V and draws a maximum supply current of 19mA. It offers a response time of 2µs and operates within a frequency range of DC to 400kHz. The sensor provides a linear output sensitivity of 30mV/mT and maintains a linearity accuracy of ±0.5%. It is housed in an 8-SOIC package (0.154 inch width) and supports bidirectional polarization for versatile current monitoring applications.

Current Sensors Feature Summary

• Implements IMC-Hall technology with an integrated magnetic concentrator for enhanced signal amplification and interference resistance
• Provides a fast analog voltage output with a 2µs response time and wide bandwidth up to 400kHz
• Features factory-calibrated offset and sensitivity settings with programmable options via external devices
• Supports bidirectional current measurement with a linear transfer characteristic for precise DC and AC monitoring

Current Sensors Applications

• Inverter and converter current monitoring
• Battery management system (BMS) redundant sensing
• High-speed industrial motor control
• Electric vehicle powertrain measurements

Current Sensors Procurement Notes

Verify the specific suffix ARX-501-TU against the official Melexis datasheet to confirm the exact sensitivity value of 30mV/mT and the tape-and-reel packaging format. Ensure the ordering code matches the required temperature grade and calibration parameters. Cross-reference the MSL level and RoHS status with the latest component documentation before finalizing procurement orders to avoid compatibility issues.

Current Sensors Selection Notes

Select this component when a high-bandwidth current sensor with a 400kHz frequency response is required. The 30mV/mT sensitivity suits applications requiring moderate magnetic field detection ranges. Consider the 8-SOIC package dimensions for PCB layout constraints. Verify that the 4.5V to 5.5V supply voltage aligns with the system power architecture and that the bidirectional capability meets the circuit's current flow requirements.

Current Sensors Part Context

This part belongs to the MLX91218 series of IMC-Hall current sensors, designed for high-performance applications. It shares the core IMC-Hall technology with variants like the MLX91216 but differs in specific calibration and sensitivity settings. The series is characterized by its robustness against electromagnetic interference and its suitability for harsh automotive and industrial environments. The MLX91218 family offers various sensitivity options to match different current measurement scales.

Current Sensors Replacement Considerations

Direct substitutes include other MLX91218 variants with matching sensitivity, such as MLX91218LDC-ARV-502-SP, provided the sensitivity difference is acceptable. Check pinout compatibility and thermal characteristics before swapping. Generic Hall sensors are not direct replacements due to differences in integration and linearity.