ACS780LLRTR-100B-T

Current Sensors Overview

The Allegro ACS780LLRTR-100B-T is a programmable, thermally enhanced current sensor IC utilizing linear Hall-effect technology. It features a bidirectional measurement capability with a 100A current rating and 20mV/A sensitivity. The device operates on a 4.5V to 5.5V supply, drawing a maximum of 15mA. It offers ±1.5% accuracy and ±1% linearity, with a 3.6µs response time and DC to 120kHz frequency range. Packaged in a 7-PowerSMD module, it supports surface mount installation and meets AEC-Q100 automotive standards for operation between -40°C and 150°C.

Current Sensors Feature Summary

• Linear Hall-effect sensing technology for high-precision AC/DC current detection
• Integrated low-resistance current conductor path for minimal power loss
• Programmable functionality allowing customization of sensor characteristics
• Thermally enhanced design optimized for efficient heat dissipation

Current Sensors Applications

• Automotive battery management systems
• Motor control drives
• Industrial power supply monitoring
• Inverter and converter circuits

Current Sensors Procurement Notes

Verify the specific suffix 'B' against the manufacturer's latest documentation to confirm pinout and functional configuration, as ordering codes may define distinct electrical parameters or package variants. Confirm that the component status remains acceptable for your production timeline, noting any potential obsolescence warnings. Ensure compatibility with your board layout regarding the 7-PowerSMD footprint and thermal requirements specified in the official datasheet.

Current Sensors Selection Notes

Select this component when bidirectional current sensing up to 100A is required with high precision and fast response times. The integrated conductor reduces external shunt resistor needs, simplifying the design. Consider the automotive qualification if operating in vehicle environments. Evaluate the thermal performance within the 7-PowerSMD package to ensure adequate heat management under continuous load conditions.

Current Sensors Part Context

This part belongs to the ACS780 series of programmable current sensors from Allegro MicroSystems. The series is characterized by its use of Hall-effect technology combined with signal processing electronics. The ACS780 family provides solutions for applications requiring isolated current measurement with high accuracy and robust thermal handling capabilities.

Current Sensors Replacement Considerations

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