MLX91220KDC-ABF-050-TU

Current Sensors Overview

The MLX91220KDC-ABF-050-TU is a second-generation isolated integrated current sensor IC from Melexis. It features a 50A detection range with a sensitivity of 40mV/A and a linear accuracy of ±0.6%. The device operates on a 4.5V to 5.5V supply, consuming a maximum of 26mA. It offers a fast response time of 2µs and supports frequencies up to 300kHz. The output is fixed voltage, and the component is housed in an 8-SOIC package suitable for surface mount installation across a temperature range of -40°C to 125°C.

Current Sensors Feature Summary

• Integrates dual on-chip overcurrent detection outputs to reduce bill of materials cost by minimizing reliance on external comparators.
• Utilizes differential Hall sensing elements positioned close to the current conductor to minimize external magnetic interference and ensure high signal-to-noise ratio.
• Factory calibrated for AC and DC currents, eliminating the need for end-of-line calibration during system integration.

Current Sensors Applications

• On-board chargers (OBC) for electric vehicles
• High-side DC/DC converters
• Automotive power management systems

Current Sensors Procurement Notes

Verify that the specific suffix TU corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 8-SOIC footprint matches the target PCB design constraints. Ensure the 50A current rating aligns with the peak load requirements of the application circuit. Check for automotive qualification status if the deployment environment demands strict reliability standards.

Current Sensors Selection Notes

Select this variant when a fixed voltage output is preferred over ratiometric scaling for stable reference applications. The 50A capacity suits high-power automotive and industrial conversion tasks. Consider the 2µs response time for fast transient protection loops. The 8-SOIC package offers a compact solution compared to larger isolation barriers while maintaining necessary electrical separation between primary and secondary sides.

Current Sensors Part Context

This component belongs to the MLX91220 series of second-generation isolated integrated current sensors. It represents an evolution in Hall-effect technology designed to balance size, impedance, bandwidth, and isolation capabilities. The series targets applications requiring precise current monitoring without complex external calibration procedures.

Current Sensors Replacement Considerations

MLX91220KDF-ABF-050-SP: Offers identical electrical performance but utilizes a 16-SOIC package instead of 8-SOIC, requiring different PCB layout considerations.