ACS725LLCTR-40AB-T The Allegro ACS725LLCTR-40AB-T is a Hall effect current sensor IC capable of measuring AC or DC current up to 40A. It offers differential sensing and a 120kHz bandwidth in an 8-SOIC package.
Mfr Part #:

ACS725LLCTR-40AB-T

Available from 3 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro ACS725LLCTR-40AB-T is a Hall effect current sensor IC capable of measuring AC or DC current up to 40A. It offers differential sensing and a 120kHz bandwidth in an 8-SOIC package.
Total Stock: 14,997 pcs
$ Price Range: $1.50

ACS725LLCTR-40AB-T Available from 3 distributors

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9,834 pcs
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ACS725LLCTR-40AB-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
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Accuracy
Bandwidth
Current
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Lead Spacing
Linearity
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Operating Temperature
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Tape & Reel
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ACS725LLCTR-40AB-T Description

Short technical summary and product information.

The Allegro ACS725LLCTR-40AB-T is an economical and precise current sensor IC designed for AC or DC current sensing in various systems. It utilizes a Hall effect sensor with differential sensing to reject common-mode fields, improving accuracy in noisy environments. The device features a primary conductor resistance of 1.2 mΩ for low power loss and a high inrush current withstand capability.

 

This sensor IC provides a ratiometric voltage output proportional to the current flowing through its integrated copper conduction path. It supports bidirectional current flow and offers a sensitivity of 33mV/A with an accuracy of ±1% and linearity of ±1.5%. The high bandwidth of 120 kHz allows for fast response times in control applications.

 

The ACS725LLCTR-40AB-T is housed in a small, low-profile 8-SOIC surface-mount package, making it ideal for space-constrained applications. The terminals of the conductive path are electrically isolated from the sensor leads, enabling high-side current-sense applications without the need for costly isolation techniques. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.

ACS725LLCTR-40AB-T Quick Information

Product Type: Current Sensor IC
Canonical Name: Allegro ACS725LLCTR-40AB-T Hall Effect Current Sensor IC
Subcategory: Current Sensor IC

ACS725LLCTR-40AB-T Compliance

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

ACS725LLCTR-40AB-T Estimated Pricing

Qty Low High
1+ $1.50 $1.50

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

ACS725LLCTR-40AB-T Features

  • Measures AC/DC current up to 40A.
  • Hall effect differential sensing technology.
  • High bandwidth of 120 kHz.
  • Low 1.2 mΩ primary conductor resistance.
  • Compact 8-SOIC surface-mount package.

ACS725LLCTR-40AB-T Applications

  • Ideal for motor control systems.
  • Used in load detection and management.
  • Suitable for switched-mode power supplies.
  • Provides overcurrent fault protection.

ACS725LLCTR-40AB-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 up to 40A.

What type of current can the ACS725LLCTR-40AB-T measure?

It can measure both AC and DC current.

What is the operating voltage range for this sensor?

The operating voltage range is 3V to 3.6V.

What is the operating temperature range?

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

What is the sensitivity of the ACS725LLCTR-40AB-T?

The sensitivity is 33mV/A.

What package type is the ACS725LLCTR-40AB-T supplied in?

It is supplied in an 8-SOIC package.

What is the bandwidth of the analog output?

The analog output has a bandwidth of 120 kHz.

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