MLX91218LDC-ARX-501-SP

Current Sensors Overview

The MLX91218LDC-ARX-501-SP is a high-speed IMC-Hall current sensor IC in an 8-SOIC package. It features a factory sensitivity of 30mV/mT, with a programmable range of 16 to 120 mV/mT. The device operates on a 5V supply (4.5V to 5.5V) with a maximum supply current of 19mA. It offers a bandwidth of DC to 400kHz and a response time of 2µs. Linearity is ±0.5%. It supports bidirectional DC current measurement from 1A to 2000A using external shields. Operating temperature ranges from -40°C to 150°C.

Current Sensors Feature Summary

• Dual overcurrent detection (OCD) with low-level active open-drain output for space-efficient protection
• IMC-Hall technology utilizing U-shaped shields for robust stray field immunity and compact assembly
• Programmable transfer characteristics including offset, sensitivity, filtering, and internal OCD thresholds
• High signal-to-noise ratio and flexible power supply options simplifying module design

Current Sensors Applications

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

Current Sensors Procurement Notes

Verify the specific suffix ARX-501-SP against the official Melexis datasheet to confirm the exact sensitivity range and packaging configuration. Ensure compatibility with the required U-shaped shield assembly for optimal performance. Check RoHS3 compliance status if environmental regulations apply to your specific manufacturing process or region.

Current Sensors Selection Notes

Select this component when high bandwidth up to 400kHz is critical for dynamic load monitoring. The dual OCD feature provides hardware-level protection without additional logic components. Consider the programmable sensitivity range to match the magnetic flux density of your chosen shield geometry. Verify that the 8-SOIC package fits within the thermal and spatial constraints of the target PCB layout.

Current Sensors Part Context

This part belongs to the MLX91218 series of IMC-Hall current sensors. It shares the core architecture with variants like MLX91218LDC-ARV-502-SP but differs in sensitivity programming and supply voltage specifications. The series is designed for automotive and industrial applications requiring precise, isolated current measurement with integrated diagnostic capabilities.

Current Sensors Replacement Considerations

MLX91218LDC-ARV-502-SP offers similar functionality but may have different sensitivity parameters. MLX91218LDC-ARX-300-TU provides a lower factory sensitivity of 14mV/mT. Verify pinout compatibility and electrical specifications before substitution.