MLX91218LDC-ARX-500-RE

Current Sensors Overview

The MLX91218LDC-ARX-500-RE is a high-speed IMC-Hall current sensor IC featuring dual overcurrent detection. It operates on a 4.5V to 5.5V supply with a maximum current consumption of 18mA. The device provides a bidirectional analog voltage output with a sensitivity of 40mV/mT and a linearity of ±0.5%. It supports a frequency range from DC to 400kHz with a response time of 2µs. The component functions within an operating temperature range of -40°C to 150°C and is housed in an 8-SOIC package.

Current Sensors Feature Summary

• Dual overcurrent detection with programmable thresholds for enhanced system protection
• IMC-Hall technology utilizing U-shaped shields for interference resistance and compact design
• Factory calibration across the full operating temperature range with programmable offset and sensitivity

Current Sensors Applications

• Motor control systems requiring fast switching response
• Inverter modules for power conversion
• High-bandwidth current sensing in dense power electronics

Current Sensors Procurement Notes

Verify the specific suffix RE against official Melexis documentation to confirm it denotes the reel packaging format, distinct from tube or tape-and-reel variants. Ensure the ordering code matches the required sensitivity and supply voltage specifications. Cross-reference the datasheet for any regional compliance requirements such as RoHS status before finalizing procurement orders.

Current Sensors Selection Notes

Select this variant for applications demanding high bandwidth up to 400kHz and rapid response times. The integrated IMC-Hall architecture allows for smaller magnetic components compared to traditional iron cores. Consider the programmable features for offset and sensitivity to tailor performance to specific circuit requirements without external calibration.

Current Sensors Part Context

This component belongs to the MLX91218 series of IMC-Hall current sensors designed for high-performance industrial applications. The series emphasizes simplified module design through integrated signal conditioning and digital processing capabilities. It represents a generation of sensors optimized for modern power electronics where size, speed, and accuracy are critical constraints.

Current Sensors Replacement Considerations

MLX91218LDC-ARX-300-TU

Current Sensors FAQ

How does the IMC-Hall technology differ from traditional Hall sensors?

IMC-Hall technology integrates the magnetic core directly into the chip, allowing for the use of flexible U-shaped shields that resist interference while maintaining a smaller and lighter form factor compared to traditional iron cores.

What is the function of the dual overcurrent detection feature?

The dual overcurrent detection (OCD) feature reports events via a low-active open-drain output, which can be configured within or outside the linear sensing range to save board space and reduce system costs.