ACS71240KEXBLT-010B3-115

Current Sensors Overview

The ACS71240KEXBLT-010B3-115 is an automotive-grade, galvanically isolated current sensor IC from Allegro MicroSystems. It utilizes open-loop Hall effect technology to measure bidirectional AC and DC currents with a rating of 10A. The device features a voltage output with a sensitivity of 132mV/A and operates within a supply voltage range of 3V to 3.6V. Key electrical parameters include a response time of 4µs, a bandwidth of 120kHz, linearity of ±1%, and accuracy of ±6%. It is housed in a 12-PowerWFQFN package (12-QFN(3x3)) with wettable flanks for reliable surface mount assembly.

Current Sensors Feature Summary

• Galvanic isolation between the current path and electronic circuitry for safety
• Open-loop Hall effect sensing technology for accurate bidirectional measurement
• Automotive qualification compliant with AEC-Q100 standards
• Surface-mount package design featuring wettable flanks for enhanced inspection

Current Sensors Applications

• Automotive battery management systems
• Electric vehicle motor control drives
• Charging station current monitoring
• Inverter and converter protection circuits

Current Sensors Procurement Notes

Verify the specific suffix -115 against the manufacturer datasheet to confirm pinout and functional equivalence with standard variants. Ensure compatibility with the 3V to 3.6V supply range and validate thermal performance within the -40°C to 125°C operating temperature envelope before integration.

Current Sensors Selection Notes

Select this component for applications requiring precise measurement of up to 10A bidirectional current in automotive environments. The 12-PowerWFQFN package supports high-reliability soldering processes. Consider the 132mV/A sensitivity and 4µs response time when designing signal conditioning circuits for fast transient detection.

Current Sensors Part Context

This part belongs to the ACS71240 series of Hall effect current sensors designed for high-performance automotive applications. It provides a compact solution for isolating high-current paths from low-voltage control logic, offering superior immunity to electromagnetic interference compared to shunt-based alternatives.

Current Sensors Replacement Considerations

The ACS71240KEXBLT-010B3 is a related variant within the same family. Verify if the standard suffix meets the specific packaging or marking requirements of the -115 designation before substitution.