MLX91219LVA-AAS-502-RE

Current Sensors Overview

The MLX91219LVA-AAS-502-RE is a board-mount Hall effect current sensor IC from Melexis Gen2.75 HiSpeed Conv family. It features an analog output with 15mV/mT sensitivity and measures bidirectional DC currents. The device operates on a 4.5V to 5.5V supply voltage, offering a frequency range of DC to 400kHz and a response time of 2µs. Packaged in Tape & Reel, it supports programmable offset, sensitivity, filtering, and internal overcurrent thresholds for precise application tuning.

Current Sensors Feature Summary

• Dual overcurrent detection (OCD) functionality with low-active open-drain output reporting
• Factory calibrated transfer characteristics across the operating temperature range
• High signal-to-noise ratio (SNR) design simplifying module architecture
• Programmable parameters including offset, sensitivity, filtering, and internal OCD thresholds

Current Sensors Applications

• Motor control systems requiring fast switching response
• Inverter and converter topologies needing high bandwidth
• Battery management system (BMS) redundant current detection
• General purpose board-mount DC current measurement

Current Sensors Procurement Notes

Verify the specific suffix AAS-502-RE against official Melexis documentation to confirm packaging type and factory calibration settings. Ensure the application circuit supports the required 4.5V to 5.5V supply range and accounts for the 2µs response time in high-speed switching environments. Cross-reference the programming tool compatibility, such as PTC-04, if field calibration is necessary for the final assembly process.

Current Sensors Selection Notes

Select this component when bidirectional DC current sensing with high bandwidth up to 400kHz is required. The VA package form factor allows integration into narrow air gaps within magnetic cores, enhancing SNR compared to standard packages. Consider the programmable nature of the sensor for applications demanding precise threshold adjustments without external hardware modifications, ensuring the selected variant matches the desired sensitivity and supply voltage constraints.

Current Sensors Part Context

This part belongs to the MLX91219 series, designed as a monolithic traditional Hall effect sensor. It utilizes iron core technology to measure currents typically ranging from 200A to 2000A or higher depending on the external magnetic circuit. The device generates an analog output voltage proportional to the perpendicular magnetic flux density, providing a robust solution for industrial and automotive power electronics where reliability and speed are critical.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify mechanical footprint compatibility and electrical pinout alignment with any alternative sensors before implementation.

Current Sensors FAQ

How is the overcurrent detection event reported?

The on-chip overcurrent detection function reports OCD events via a low-active open-drain output, which can be configured within or outside the linear sensing range.

Is the sensor suitable for high-frequency switching applications?

Yes, the MLX91219 features a 400kHz bandwidth and a 2µs response time, making it suitable for fast-switching applications like motor control and inverters.