ACS725LLCTR-20AB-T

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Closed Loop/Open Loop Current Sensor AC/DC Current 3.3V Automotive AEC-Q100 8-Pin SOIC N T/R

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ACS725LLCTR-20AB-T DataSheet

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ACS725LLCTR-20AB-T Details

The ACS725LLCTR-20AB-T is a Hall effect-based current sensor from Allegro Microsystems, designed for accurate current sensing in various electronic applications. This sensor offers a measurement range of up to 20A, providing a reliable and non-intrusive solution for current monitoring. It features a compact package and low-noise operation, making it suitable for a wide range of industrial and automotive applications.

Pinout

  • 1 (VCC): Positive Power Supply
  • 2 (GND): Ground
  • 3 (OUT): Analog Output
  • 4 (NC): No Connection

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

  • High Accuracy: Provides precise current measurement with low offset and noise.
  • Wide Measurement Range: Capable of measuring currents up to 20A.
  • Compact Design: Features a small form factor for easy integration into tight spaces.
  • Non-Intrusive Sensing: Utilizes Hall effect technology for contactless current sensing.
  • Robust Operation: Designed for reliable performance in industrial and automotive environments.

Application

  • Motor Control: Ideal for motor control systems requiring accurate current monitoring.
  • Battery Management: Used in battery management systems for monitoring charging and discharging currents.
  • Power Inverters: Suitable for power inverter applications where current sensing is critical.

Where to Use

The ACS725LLCTR-20AB-T is suitable for applications that demand accurate and non-intrusive current sensing. It is commonly used in motor control systems, battery management, and power inverters to ensure efficient and safe operation.

How to Use

Connect the ACS725LLCTR-20AB-T by connecting the VCC and GND pins to the respective power and ground connections. The OUT pin provides an analog voltage output proportional to the sensed current. Ensure proper calibration and consider the sensor's thermal characteristics for optimal performance. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the ACS725LLCTR-20AB-T illustrates how to integrate the current sensor into your electronic system. It indicates connections for power, ground, and the analog output, ensuring accurate current measurement and system compatibility.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

  • ACS723LLCTR: A similar Hall effect-based current sensor with comparable features and performance.
  • LEM LA 55-P: An alternative current sensor offering similar functionality and accuracy.

Complementary

The ACS725LLCTR-20AB-T can be complemented by the ACS725LLCTR-40AB-T, offering a higher current measurement range for more demanding applications. Ensure compatibility with your system requirements when selecting complementary sensors.

Frequently Asked Questions

Q: What is the maximum current measurement capability of the ACS725LLCTR-20AB-T?

A: The ACS725LLCTR-20AB-T can measure currents up to 20A. For specific operating conditions and limitations, refer to the datasheet.

Q: Is the ACS725LLCTR-20AB-T suitable for automotive applications?

A: Yes, the ACS725LLCTR-20AB-T is designed for reliable operation in automotive environments, offering accurate current sensing for various automotive systems and applications.

ACS725LLCTR-20AB-T

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category ! Board Mount Current Sensors RoHS Details
Current Rating ! 20 A Sensor Type Current Sense
Type Linear Hall Operating Supply Voltage ! 3 V to 3.6 V
Response Time ! 4 us Frequency Range ! 120 kHz
Output Type Analog Series ACS725
Brand Allegro MicroSystems Height 1.75 mm
Length 4.9 mm Maximum Operating Temperature ! + 150 C
Minimum Operating Temperature - 40 C Moisture Sensitive Yes
Package / Case SOIC-8 Product Type ! Current Sensors
Factory Pack Quantity 3000 Subcategory Sensors
Supply Voltage - Max 3.6 V Supply Voltage - Min 3 V
Width 3.9 mm

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification ACS725LLCTR-20AB-T PDF Download

FAQs

What is ACS725LLCTR-20AB-T?

The ACS725LLCTR-20AB-T is a fully integrated, Hall effect-based linear current sensor designed by Allegro Microsystems. It is ideal for applications requiring accurate and isolated current measurements, such as motor control, power management, and energy monitoring systems.

How Does ACS725LLCTR-20AB-T Work?

The ACS725LLCTR-20AB-T operates based on the Hall effect, which enables it to accurately measure current while providing electrical isolation. It detects the magnetic field generated by the current-carrying conductor and produces an output voltage proportional to the current flowing through it. The sensor features a low-resistance current path and minimal insertion loss, minimizing power dissipation and ensuring accurate current measurements.

How Many Pins does ACS725LLCTR-20AB-T have and What are the Functions of the Pinout Configuration?

The ACS725LLCTR-20AB-T is housed in a 16-pin surface-mount SOIC package. The pinout configuration includes:

  • VCC: Power supply pin.
  • GND: Ground pin.
  • VIOUT: Voltage output pin.
  • IP+, IP-: Differential current sense input pins.
  • VOFFSET: Output offset null pin.
  • VCCIO: Logic output pin.
  • NC: No connection pin.
  • ADDR0, ADDR1: Address input pins for device configuration.

What are the Pros and Cons of ACS725LLCTR-20AB-T?

Pros:

  • Accurate Current Sensing: Provides accurate current measurements for precise control and monitoring.
  • Electrical Isolation: Offers electrical isolation for enhanced safety in high-voltage applications.
  • Low Power Dissipation: Features a low-resistance current path and minimal insertion loss, minimizing power dissipation.
  • Wide Dynamic Range: Supports a wide dynamic range of current measurements.
  • Configurability: Includes address input pins for device configuration, offering flexibility in system integration.

Cons:

  • External Components: May require additional external components for offset null and specific system requirements.
  • Complexity: Requires careful consideration of layout and noise immunity for optimal performance.
  • Package Size: The 16-pin SOIC package may require careful handling during assembly and rework.

Are There Any Equivalents/Alternatives to ACS725LLCTR-20AB-T for Recommendation?

  • The ACS723 and ACS726 from Allegro Microsystems are similar Hall effect-based current sensors offering different current sensing ranges.
  • Alternatives to the ACS725LLCTR-20AB-T include the TLI4971 from Infineon and the CQ series from Honeywell Sensing and Productivity Solutions.

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