ACS37010LLZATR-030B5

Current Sensors Overview

The ACS37010LLZATR-030B5 is a fully integrated board-mount current sensor IC from Allegro MicroSystems, designed for high-accuracy DC current measurement. It utilizes Hall effect technology to provide galvanic isolation between the current-carrying path and the signal output. The device features a 30A bidirectional sensing range with a sensitivity of 40mV/A. It operates on a supply voltage of 4.5V to 5.5V, drawing a maximum supply current of 20mA. The sensor offers a bandwidth of 450kHz and a response time of 1.3µs, with an accuracy of ±1.5%. It is housed in a compact 6-lead SOIC package (8-SOIC footprint) suitable for surface mount applications.

Current Sensors Feature Summary

• Integrated Hall effect sensing provides complete electrical isolation between the primary current path and the secondary circuitry.
• Bidirectional operation enables accurate measurement of both positive and negative current flows within the rated range.
• High accuracy specification ensures reliable performance for precision current monitoring tasks.
• Compact surface-mount packaging facilitates integration into space-constrained electronic designs.

Current Sensors Applications

• Motor control systems requiring precise phase current feedback
• Power supply overcurrent protection circuits
• Industrial automation equipment current monitoring
• Automotive electronics battery management systems

Current Sensors Procurement Notes

Verify that the specific suffix B5 corresponds to the required sensitivity and pin configuration as defined in the official Allegro datasheet. Confirm that the LZ package variant matches the PCB footprint requirements. Ensure the operating voltage range aligns with the system's power supply rails before procurement. Check RoHS compliance status if environmental regulations apply to the final assembly.

Current Sensors Selection Notes

Select this component when bidirectional DC current sensing with high accuracy is required in a compact form factor. The 30A rating suits moderate current applications where thermal management is feasible. Consider the 450kHz bandwidth for dynamic load monitoring. Ensure the 5V supply requirement fits the available voltage domain. Evaluate the SOIC-6 package dimensions against the target PCB layout constraints.

Current Sensors Part Context

This part belongs to the ACS37010 series of current sensor ICs, which are designed for general-purpose current sensing applications. The series integrates Hall sensors and signal processing circuitry on a single die. The LLZA suffix indicates the specific package type and tape/reel orientation. This model represents a standard offering within Allegro's portfolio of isolated current sensors.

Current Sensors Replacement Considerations

Direct substitutes include other parts from the ACS37010 family with different current ratings or sensitivities, such as ACS37010LLZATR-050B5 for higher current capacity. Cross-family replacements may require schematic and layout modifications due to differences in pinout or sensitivity. Verify functional equivalence before substitution.