ACS72981LLRATR-050B5

Current Sensors Overview

The Allegro MicroSystems ACS72981LLRATR-050B5 is a board-mount current sensor IC featuring high precision linear Hall effect technology. It provides an analog ratiometric voltage output with a sensitivity of 40mV/A for ±50A bidirectional current sensing. The device operates on a supply voltage range of 4.5V to 5.5V and delivers a bandwidth of 250kHz with a response time of 1.8µs. Linearity is specified at ±0.8%, while accuracy is rated at 3.25%. It functions within a temperature range of -40°C to +150°C in a 7-PSOF package.

Current Sensors Feature Summary

• Integrates a high precision linear Hall effect sensor with an on-board conductor for economical AC or DC current sensing solutions.
• Provides a fully integrated, high-isolation current sensor solution optimized for precise linear operations.

Current Sensors Applications

• AC or DC current sensing applications
• High precision linear Hall effect operations

Current Sensors Procurement Notes

Verify the specific suffix B5 against official datasheets to confirm the ±50A rating and 40mV/A sensitivity. Ensure the PSOF-7 package dimensions match the PCB footprint requirements. Confirm that the operating temperature range of -40°C to +150°C aligns with the thermal environment of the target application. Cross-reference the 250kHz frequency specification with system bandwidth needs.

Current Sensors Selection Notes

Select this component when a fully integrated, high-isolation solution is required for precise linear current monitoring. The 40mV/A sensitivity and ±0.8% linearity make it suitable for applications demanding accurate measurement over a ±50A range. Consider the 7-PSOF surface mount package for compact designs requiring robust performance across a wide temperature spectrum.

Current Sensors Part Context

This part belongs to the ACS72981 family of current sensor ICs from Allegro MicroSystems. The series offers economical and precise solutions for both AC and DC current sensing tasks. These devices are designed to provide excellent performance through integrated Hall effect technology combined with signal conditioning electronics.

Current Sensors Replacement Considerations

Consult official substitution guides for compatible parts within the ACS72981 family, such as variants with different current ratings like the ACS72981LLRATR-100B5. Verify pin compatibility and sensitivity specifications before swapping components.

Current Sensors FAQ

What is the sensitivity of the ACS72981LLRATR-050B5?

The sensitivity is 40mV/A.

Is the ACS72981LLRATR-050B5 capable of bidirectional current sensing?

Yes, the device supports bidirectional current sensing.