ACS772ECB-250U-PFF-T

Current Sensors Overview

The ACS772ECB-250U-PFF-T is a Hall-effect-based current sensor IC from Allegro Microsystems, designed for galvanically isolated current sensing. It features a 250A bidirectional current rating and a 200 kHz bandwidth. The device operates on a 3V to 3.6V supply voltage with an analog output. It utilizes a 5-pin CB package with formed leads (PFF) for through-hole mounting. Key electrical parameters include a sensitivity of 4 mV/A, an offset voltage of ±10 mV, and a response time of 2.5 µs. The component supports operation within a temperature range of -40°C to +150°C and meets AEC-Q100 automotive standards.

Current Sensors Feature Summary

• Galvanic isolation between the high-current conductor path and the electronic circuit
• High accuracy measurement capability with low offset voltage specifications
• Integrated signal conditioning and amplification for direct analog output
• Robust thermal performance suitable for high-temperature industrial environments

Current Sensors Applications

• Motor control systems in electric vehicles
• Industrial motor drives and inverters
• Power supply monitoring and protection circuits
• Battery management systems for hybrid and electric vehicles

Current Sensors Procurement Notes

Verify the specific suffix 'U' indicates unidirectional configuration if required by design, though datasheets often classify this series as bidirectional; confirm exact part number alignment with official Allegro documentation. Ensure the PFF package type matches the PCB footprint requirements. Check for recent Product Change Notifications regarding manufacturing site or material updates. Confirm RoHS compliance status for regulatory adherence. Validate that the 3V-3.6V supply range fits the system power architecture.

Current Sensors Selection Notes

Select this component when high bandwidth and precise current measurement are critical for dynamic load applications. The 200 kHz bandwidth supports fast switching frequencies found in modern power electronics. Consider the 5-pin CB package for ease of through-hole assembly in high-power modules. Evaluate the thermal resistance characteristics against the expected heat dissipation needs. Compare the sensitivity and offset specs against system resolution requirements to ensure adequate signal-to-noise ratio.

Current Sensors Part Context

This part belongs to the ACS772 series of Hall-effect current sensors, which are known for their high accuracy and robust isolation capabilities. The series is widely used in automotive and industrial applications requiring reliable current monitoring. The ACS772ECB variant specifically targets designs needing a 250A rating with enhanced thermal performance. It complements other Allegro sensors like the ACS770 and ACS773 series, offering a balance of speed and precision.

Current Sensors Replacement Considerations

ACS772LCB-250U-PFF-T offers similar electrical characteristics but may differ in packaging or specific thermal ratings. ACS773KCB-250B-PFF-T provides comparable functionality within the newer ACS773 family. Verify pinout compatibility and mechanical dimensions before substitution. Review updated datasheets for any changes in sensitivity or offset specifications.