MLX91218LDC-ARV-500-RE

Current Sensors Overview

The MLX91218LDC-ARV-500-RE is a high-speed, high-precision IMC-Hall current sensor IC manufactured by Melexis Technologies NV. It utilizes Hall effect technology to provide an analog voltage output proportional to the magnetic flux density parallel to the chip surface. The device features dual overcurrent detection (OCD) capabilities and supports flexible power supply voltages ranging from 4.5V to 5.5V. Key electrical parameters include a sensitivity of 30mV/mT, a linear accuracy of ±0.5%, and a bandwidth extending from DC to 400kHz with a response time of 2µs. It operates within a temperature range of -40°C to 150°C and draws a maximum supply current of 19mA.

Current Sensors Feature Summary

• Dual overcurrent detection (OCD) functionality with low-level active open-drain outputs for event reporting.
• Factory calibration across the operating temperature range with programmable offset, sensitivity, filtering, and internal OCD thresholds.
• IMC-Hall technology utilizing a flexible U-shaped shield to resist interference and enable compact integration.

Current Sensors Applications

• Motor control systems requiring fast response to rapid switching events
• Inverter modules in power electronics applications
• Converter circuits demanding high-bandwidth current sensing

Current Sensors Procurement Notes

Verify the specific suffix ARV-500-RE against the official datasheet to confirm the exact sensitivity and supply voltage configuration. Ensure the application design accounts for the required U-shaped shield assembly for optimal performance. Confirm that the SOIC-8 package dimensions align with the PCB footprint requirements. Check for any specific handling instructions related to moisture sensitivity level 3.

Current Sensors Selection Notes

Select this component when high-speed response and precise current measurement are critical for motor drives or inverters. The dual OCD feature offers protection without additional external circuitry, saving board space. Consider the 400kHz bandwidth for applications involving fast switching frequencies. The programmable nature allows customization of transfer characteristics to fit specific system requirements.

Current Sensors Part Context

This part belongs to the MLX91218 series of IMC-Hall current sensors, designed for robust performance in demanding power electronic environments. The series integrates advanced Hall technology with digital programmability to simplify module design. It is distinct from other variants by its specific sensitivity and supply voltage configuration, tailored for 5V logic interfaces.

Current Sensors Replacement Considerations

MLX91218LDC-ARV-502-SP: Offers different sensitivity (40mV/mT). MLX91218LDC-ARX-300-TU: Operates on 3.3V supply with lower sensitivity (14mV/mT). Verify pin compatibility and thermal characteristics before substitution.