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ACS781LLRTR-050B-T is listed in the Current Sensors range at ChipApex. The manufacturer field lists Allegro MicroSystems. Its product description is SENSOR CUR HALL 50A 7POWERSMD. Review the specifications below when checking this part for your BOM.
Current Sensors specifications for ACS781LLRTR-050B-T
- Description：SENSOR CUR HALL 50A 7POWERSMD
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- For Measuring：AC/DC
- Sensor Type：Hall Effect, Differential
- Current - Sensing：50A
- Number of Channels：1
- Output：Ratiometric, Voltage
- Sensitivity：26.4mV/A
- Frequency：DC ~ 120kHz
- Linearity：±1%
- Accuracy：±1.5%
- Voltage - Supply：3V ~ 3.6V
- Response Time：3.6µs
- Current - Supply (Max)：15mA
- Operating Temperature：-40°C ~ 150°C
- Grade：Automotive
- Qualification：AEC-Q100
- Polarization：Bidirectional
- Mounting Type：Surface Mount
- Package / Case：7-PowerSMD Module
- Supplier Device Package：7-PSOF
Current Sensors datasheet and documents for ACS781LLRTR-050B-T
Current Sensors Overview
The ACS781LLRTR-050B-T is a high-precision linear Hall-effect-based current sensor IC featuring a 200 µΩ internal conductor. It provides galvanic isolation for bidirectional AC/DC current measurement up to 50A with a sensitivity of 26.4mV/A. The device operates on a 3V to 3.6V supply, draws a maximum of 15mA, and offers a response time of 3.6µs. It maintains ±1.5% accuracy and ±1% linearity across a frequency range of DC to 120kHz. Designed for automotive applications, it meets AEC-Q100 standards and functions within a temperature range of -40°C to 150°C in a 7-PowerSMD package.
Current Sensors Feature Summary
- High-precision linear Hall-effect sensing technology
- Galvanic isolation via integrated 200 µΩ conductor
- Bidirectional measurement capability for AC and DC currents
- Automotive-grade reliability with AEC-Q100 qualification
Current Sensors Applications
- Automotive battery management systems
- Motor control circuits
- Power supply monitoring
- Industrial load detection
Current Sensors Procurement Notes
Verify the specific suffix 'B' against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match design requirements. Note that this component is marked as Not Recommended for New Designs (NRND) by Allegro MicroSystems; consult official documentation for end-of-life timelines or recommended alternative part numbers before finalizing procurement plans.
Current Sensors Selection Notes
Select this sensor when precise bidirectional current monitoring is required in space-constrained automotive or industrial environments. Ensure the system power supply remains strictly between 3V and 3.6V to maintain specified accuracy. Consider the 7-PowerSMD package dimensions and thermal dissipation capabilities during PCB layout to support the 150°C operating limit.
Current Sensors Part Context
This model belongs to the ACS781 family of core-less, micro-sized current sensors. It utilizes differential Hall effect technology to provide isolated current sensing without external magnetic components. The series is engineered for high-volume manufacturing with consistent performance across temperature variations.
Current Sensors Replacement Considerations
Allegro MicroSystems indicates this part is not recommended for new designs. Consult the official datasheet for valid substitute part numbers within the same product family or updated generations.
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