ACS72981KLRATR-150B3

Current Sensors Overview

The Allegro MicroSystems ACS72981KLRATR-150B3 is a high-precision linear Hall-effect-based current sensor IC designed for board-mount applications. It features a low-resistance current conductor with a nominal resistance of 200 µΩ, enabling efficient bidirectional current measurement. The device provides an analog output proportional to the sensed current, supporting accurate AC and DC sensing solutions. Key electrical specifications include a current rating of 150 A, a response time of 1.8 µs, and an accuracy of 3.25%. It operates within a frequency range of 250 kHz and requires a supply voltage between 4.5 V and 5.5 V. The component is housed in a PSO-7 package and functions reliably across a temperature range from -40°C to +150°C.

Current Sensors Feature Summary

• High-precision linear Hall-effect technology for accurate current sensing
• Low-offset voltage design ensuring stable performance
• Integrated low-resistance current conductor for minimal power loss
• Bidirectional current measurement capability

Current Sensors Applications

• Industrial motor control systems
• Power supply monitoring and management
• Battery management systems
• Inverter and converter circuits

Current Sensors Procurement Notes

Verify the complete part number including suffixes such as KLRATR-150B3 to ensure correct current rating and packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Cross-reference the datasheet revision date to ensure compatibility with current design requirements. Check for any regional distribution restrictions or limited availability notices associated with this specific Allegro MicroSystems product code.

Current Sensors Selection Notes

Select this component when precise bidirectional current sensing is required in space-constrained designs. The 200 µΩ conductor minimizes thermal impact while maintaining measurement integrity. Ensure the application voltage stays within the 4.5 V to 5.5 V range. Consider the PSO-7 package dimensions for PCB layout constraints. Verify that the 150 A rating aligns with peak load requirements rather than just continuous current.

Current Sensors Part Context

This device belongs to the ACS72981 series of high-precision linear Hall-effect current sensors. The series is engineered for economical yet precise AC or DC sensing solutions. The KLRATR-150B3 variant specifically denotes the 150 A current rating and tape-and-reel packaging format. It represents an evolution in integrated current sensing technology, combining magnetic isolation with direct board mounting capabilities.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.