MLX91218LDC-ARX-301-SP

Current Sensors Overview

The MLX91218LDC-ARX-301-SP is a high-speed, high-precision IMC-Hall current sensor IC from Melexis. It utilizes Hall effect technology for precise current measurement with a bandwidth of DC to 400kHz and a response time of 2µs. The device features dual over-current detection (OCD) and programmable sensitivity ranging from 14mV/mT to 19mV/mT. It operates on a supply voltage of 3.135V to 3.465V with a maximum supply current of 18mA. The sensor provides a ratiometric analog voltage output and is calibrated across an operating temperature range of -40°C to 150°C.

Current Sensors Feature Summary

• Dual over-current detection capability with low-level valid open-drain output reporting
• IMC-Hall technology utilizing U-shaped shielding for robust stray field immunity
• Programmable offset, sensitivity, filtering, and internal over-current thresholds
• High signal-to-noise ratio supporting simplified module design

Current Sensors Applications

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

Current Sensors Procurement Notes

Verify the specific suffix ARX-301-SP against the official datasheet to confirm factory sensitivity and package type. Ensure the procurement channel is authorized by Melexis Technologies NV to guarantee component authenticity. Confirm that the application circuit supports the required 3.3V/5V flexible supply voltage and matches the SOIC-8 pinout configuration.

Current Sensors Selection Notes

Select this component for applications requiring high bandwidth up to 400kHz and rapid response times. The programmable nature allows customization of sensitivity and OCD thresholds to fit specific system requirements. Consider the integration with U-shaped shields for optimal performance in high electromagnetic interference environments compared to conventional Hall sensors.

Current Sensors Part Context

This part belongs to the Gen2.75 HiSpeed IMC family of current sensors. It is designed as a monolithic Hall effect sensor chip providing an analog output voltage proportional to magnetic flux density. The MLX91218 series is engineered for automotive, industrial, and consumer markets, offering robust reliability and resistance to mechanical damage through its integrated magnetic core technology.

Current Sensors Replacement Considerations

MLX91218LDC-ARX-300-TU is a related variant within the same family. Verify if the sensitivity difference between the 300 and 301 suffixes aligns with the target application requirements before substitution.