ACS781LLRTR-050B-T The Allegro ACS781LLRTR-050B-T is a Hall effect current sensor IC designed for AC/DC measurements up to 50A. It offers high precision and a surface mount package.
Mfr Part #:

ACS781LLRTR-050B-T

Available from 1 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro ACS781LLRTR-050B-T is a Hall effect current sensor IC designed for AC/DC measurements up to 50A. It offers high precision and a surface mount package.
Total Stock: 55,200 pcs
$ Price Range: $1.50

ACS781LLRTR-050B-T Available from 1 distributor

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ACS781LLRTR-050B-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
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Accuracy
Current
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Frequency
Linearity
Mounting Type
Number of Channels
Operating Temperature
Output
Polarization
Response Time
Sensitivity
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Tape & Reel
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ACS781LLRTR-050B-T Description

Short technical summary and product information.

The Allegro ACS781LLRTR-050B-T is a fully integrated, automotive-grade Hall effect current sensor IC capable of measuring bidirectional AC and DC currents up to 50A. It features a low-profile, core-less package with a very small footprint, making it suitable for space-constrained applications.

 

This sensor IC provides an analog output voltage that varies linearly with the primary current. Key electrical specifications include a sensitivity of 26.4mV/A, ±1.5% accuracy, and ±1% linearity. It operates over a voltage range of 3V to 3.6V and a wide temperature range of -40°C to 150°C. The device has a fast response time of 3.6µs and supports frequencies from DC up to 120kHz.

 

Designed with Hall sensor technology, it incorporates common-mode field rejection for optimized performance in the presence of interfering magnetic fields. The integrated copper conduction path has a low resistance of 200 µΩ. The ACS781LLRTR-050B-T is mounted via surface mount technology and comes in a 7-PowerSMD Module package (7-PSOF).

 

Note: This device is classified as NOT FOR NEW DESIGN and is restricted to existing customer applications due to probable obsolescence.

ACS781LLRTR-050B-T Quick Information

Product Type: Current Sensor IC
Canonical Name: Allegro ACS781LLRTR-050B-T Hall Effect Current Sensor IC
Subcategory: Hall Effect

ACS781LLRTR-050B-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ACS781LLRTR-050B-T Estimated Pricing

Qty Low High
1+ $1.50 $1.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

ACS781LLRTR-050B-T Features

  • Measures bidirectional AC/DC current up to 50A.
  • High accuracy of ±1.5% and linearity of ±1%.
  • Low resistance 200 µΩ current conductor.
  • Wide operating temperature range: -40°C to 150°C.
  • Compact 7-PowerSMD surface mount package.

ACS781LLRTR-050B-T Applications

  • Ideal for power supply current monitoring.
  • Suitable for motor control applications.
  • Used in industrial automation systems.
  • Applicable for battery management systems.

ACS781LLRTR-050B-T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum current this sensor can measure?

This sensor can measure AC and DC currents up to 50A.

What is the accuracy of the ACS781LLRTR-050B-T current sensor?

The accuracy of this sensor is ±1.5%.

What is the operating voltage range for this Hall effect sensor?

The operating voltage range is 3V to 3.6V.

What is the operating temperature range for the ACS781LLRTR-050B-T?

The operating temperature range is -40°C to 150°C.

What type of package is the ACS781LLRTR-050B-T in?

It is in a 7-PowerSMD Module package, also described as 7-PSOF.

How is the ACS781LLRTR-050B-T mounted?

This sensor is designed for surface mount installation.

What is the sensitivity of this current sensor?

The sensitivity is 26.4mV/A.

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