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ACS772LCB-050B-PFF-T

ACS772LCB-050B-PFF-T

Allegro MicroSystems
Same ACS772 family in the same package and output style but optimized for 50 A ranges when you need higher sensitivity or lower full-scale current.
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Overview

The ACS772LCB-050B-PFF-T is a high-accuracy, ratiometric Hall-effect current sensor designed for bidirectional AC or DC measurements up to 50 A. It features reinforced galvanic isolation and a high 200 kHz bandwidth, making it suitable for fast-switching power electronics and automotive systems.

Why Choose This Part

The sensor provides excellent thermal stability with factory-trimmed gain and offset, ensuring accurate readings across a -40C to 150C range. Its monolithic construction and integrated shield offer high immunity to stray magnetic fields and high-voltage transients.

Applications

EV On-Board Chargers
Monitoring AC input or DC output current with high isolation requirements in electric vehicle charging systems.
Industrial Motor Control
Phase current sensing in variable frequency drives where fast 2.5us response time is critical for protection.
Solar Inverters
High-side current monitoring in DC-to-AC power conversion stages with minimal power loss through the 100 micro-ohm leadframe.
Battery Management Systems
Accurate state-of-charge monitoring in 48V or higher voltage battery packs requiring AEC-Q100 reliability.

Key Specifications

Output Ratiometric, Voltage
Frequency DC ~ 200kHz
Linearity +/-0.9%
Sensitivity 40mV/A
Sensor Type Hall Effect
Polarization Bidirectional
For Measuring AC/DC
Mounting Type Through Hole
Response Time 2.5us
Package / Case 5-CB Formed Leads, PFF
Voltage - Supply 4.5V ~ 5.5V
Current - Sensing 50A
Number of Channels 1
Operating Temperature -40degC ~ 150degC
Current - Supply (Max) 15mA
Supplier Device Package 5-CB Module

Getting Started

Integrate the sensor into a PCB using the PFF formed leads package, ensuring the high-current traces are sized for 50 A continuous load. Connect the output to a 5V ADC input and provide a stable Vcc between 4.5V and 5.5V for ratiometric operation.

Also Consider

ACS772LCB-100B-PFF-T Allegro MicroSystems - Identical package and interface but with a wider 100 A range for higher power applications.
ACS758LCB-050B-PFF-T Allegro MicroSystems - A similar 50 A bidirectional sensor in the same PFF package for applications that do not require the specific 200kHz bandwidth of the 772 series.
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