MLX91220KDC-ABR-025-SP

Current Sensors Overview

The MLX91220KDC-ABR-025-SP is a board-mount current sensor utilizing Hall effect technology with an open-loop configuration. It features a single channel capable of measuring bidirectional currents up to 25A, packaged in an 8-SOIC (3.90mm wide) surface-mount device. The device operates on a 4.5V to 5.5V supply voltage, drawing a maximum supply current of 26mA. It provides a ratiometric voltage output with a sensitivity of 100mV/A and maintains a linear accuracy of ±0.6%. The sensor supports frequencies from DC to 300kHz with a response time of 2µs, functioning within a temperature range of -40°C to 125°C.

Current Sensors Feature Summary

• Integrates dual On-Chip Over Current Detection (OCD) for simplified protection without external comparators
• Factory calibrated for AC/DC current sensing with high linearity and low drift across the operating temperature range
• Provides ratiometric analog voltage output proportional to the measured current
• Features differential Hall plates to minimize interference from external magnetic fields

Current Sensors Applications

• On-board chargers (OBC)
• High-side DC-DC converters
• Automotive power distribution systems

Current Sensors Procurement Notes

Verify the specific suffix 'SP' against official Melexis documentation to confirm it denotes the standard tube or tray packaging format rather than reel tape, as this impacts handling procedures. Ensure the order matches the 8-SOIC package variant distinct from the 16-SOIC KDF version. Confirm AEC-Q100 qualification status if automotive grade compliance is required for the final assembly.

Current Sensors Selection Notes

Select this component when a compact 8-SOIC footprint is preferred over larger packages while maintaining 25A measurement capability. It is suitable for applications requiring ratiometric output relative to the 5V supply. Consider the 2µs response time and 300kHz bandwidth for fast-switching power electronics. Verify that the internal OCD thresholds meet system protection requirements before relying on them exclusively.

Current Sensors Part Context

This part belongs to the MLX91220 series, representing second-generation isolated integrated current sensors designed for automotive and industrial applications. It complements the MLX91221 series which operates at 3.3V. The KDC suffix indicates the 8-SOIC package variant, distinguishing it from the KDF 16-SOIC version. The series emphasizes high integration, reducing bill-of-materials by eliminating external calibration needs.

Current Sensors Replacement Considerations

MLX91220KDC-ABR-025-RE: Identical electrical specifications and package; differs only in shipping packaging (reel vs. tube). MLX91220KDC-ABR-020-RE: Similar 8-SOIC package but rated for 20A with different sensitivity (100mV/A vs 80mV/A for 25A variants); verify current rating compatibility.