ACS758LCB-050B-PFF-T

Current Sensors Overview

The ACS758LCB-050B-PFF-T is a thermally enhanced, fully integrated linear current sensor IC based on Hall effect technology. It features a low-offset BiCMOS Hall circuit and a copper conduction path with 100 μΩ resistance. The device provides a proportional voltage output for bidirectional AC or DC current sensing. Key electrical parameters include a ±50A primary current rating, 40mV/A sensitivity, and a 3V to 5.5V supply voltage range. It operates within a temperature range of -40°C to +150°C, offers a bandwidth of 120kHz, and has a response time of 4μs.

Current Sensors Feature Summary

• Integrates a precision low-offset linear Hall circuit with a dedicated copper conduction path for high accuracy.
• Provides galvanic isolation between the current conductor and signal output to eliminate ground loop interference.
• Features Allegro’s proprietary integrated shielding technology for high immunity against dV/dt and stray electric fields.

Current Sensors Applications

• Motor drive and control systems
• Battery management systems (BMS)
• Solid-state relay replacement
• Overcurrent protection circuits

Current Sensors Procurement Notes

Verify the specific suffix 'PFF' corresponds to the CB package with formed leads as documented in official datasheets. Confirm AEC-Q100 qualification status for automotive applications. Ensure the bidirectional nature matches system requirements. Check for any recent Product Change Notifications regarding packaging or material composition updates from Allegro MicroSystems before finalizing procurement.

Current Sensors Selection Notes

Select this component for applications requiring high-current sensing without the power loss associated with shunt resistors. The 100 μΩ internal conductor minimizes heat generation compared to traditional solutions. The wide operating temperature range supports harsh environments. Consider the 40mV/A sensitivity when designing signal conditioning circuits to ensure adequate resolution for the target current range.

Current Sensors Part Context

This part belongs to the ACS758xCB series, designed for high-performance current sensing. It replaces bulky discrete solutions by integrating the Hall sensor, signal amplifier, and precision conductive path into a single compact module. The series is engineered for reliability in industrial and automotive sectors, offering consistent performance across the specified temperature range.

Current Sensors Replacement Considerations

Direct substitutes within the same family include ACS758LCB-050U-PFF-T (unidirectional) and ACS758LCB-100B-PFF-T (100A rating). Verify pinout compatibility and thermal characteristics when cross-referencing with other manufacturers' Hall-effect sensors, as mounting and isolation specifications may differ.