ACS730LLCTR-50AB-S

Current Sensors Overview

The ACS730LLCTR-50AB-S is a Hall effect open-loop current sensor manufactured by Allegro MicroSystems. It features a 50A current rating and provides a voltage output with 40mV/A sensitivity. The device operates on a 4.5V to 5.5V supply, drawing a maximum of 25mA. It offers ±3% accuracy and ±0.75% linearity. The sensor has a 1MHz bandwidth and a 700ns response time. It supports bidirectional current measurement for AC/DC applications. The component is housed in an 8-SOIC package (0.154" width) and functions within a temperature range of -40°C to 125°C.

Current Sensors Feature Summary

• Utilizes Hall effect technology for electrical isolation without physical contact
• Provides analog voltage output proportional to sensed current
• Supports bidirectional current sensing for both AC and DC signals
• Features high-speed response suitable for dynamic load monitoring

Current Sensors Applications

• Motor control systems requiring precise current feedback
• Switch-mode power supplies for overcurrent protection
• Industrial automation equipment monitoring
• Inverter and converter circuitry

Current Sensors Procurement Notes

Verify the specific suffix 'S' against official Allegro documentation to confirm tape-and-reel packaging specifications, as standard variants often use 'T'. Confirm RoHS compliance status and MSL rating prior to integration. Ensure the 8-SOIC footprint matches the design layout. Check for obsolescence notices or PCNs affecting the manufacturing process. Validate that the 50A rating aligns with thermal management requirements in the target application environment.

Current Sensors Selection Notes

Choose this model when high bandwidth and fast response are critical for system dynamics. The 40mV/A sensitivity requires appropriate signal conditioning for low-level currents. Consider the 8-SOIC package constraints for PCB space. Evaluate thermal dissipation capabilities given the 125°C operating limit. Compare against other ACS730 variants if different current ratings or packaging options better suit the mechanical design. Ensure supply voltage stability within the 4.5V to 5.5V range for optimal performance.

Current Sensors Part Context

This component belongs to the ACS730 series of integrated current sensors. The series utilizes advanced Hall effect technology to provide galvanic isolation between the current-carrying conductor and the electronic circuit. The ACS730 family is designed for applications requiring high precision and speed. The 'LLCTR' designation typically indicates a specific packaging and reel configuration within the product line.

Current Sensors Replacement Considerations

ACS730KLCTR-50AB-T: Similar 50A rating and SOIC-8 package; verify packaging suffix differences.

Current Sensors FAQ

What is the bandwidth of the ACS730LLCTR-50AB-S?

The device has a bandwidth of 1MHz.

Is the sensor capable of measuring AC current?

Yes, it supports bidirectional current measurement for both AC and DC applications.