ACS724LMCTR-20AB-T

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ACS724LMCTR-20AB-T

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CURRENT SENSOR W/COMMON-MODE FIE

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規格

屬性 價值
Part Status Active
For Measuring AC/DC
Sensor Type Hall Effect
Current - Sensing 20A
Number of Channels 1
Output Analog Voltage
Sensitivity 30.75mV/A
Frequency DC ~ 120kHz
Linearity ±1%
Voltage - Supply 4.5V ~ 5.5V
Response Time 4µs
Current - Supply (Max) 14mA
Operating Temperature -40°C ~ 150°C
Polarization Bidirectional
Mounting Type Surface Mount
Package / Case 16-SOIC (0.295", 7.50mm Width)
Supplier Device Package 16-SOIC

概述

Description

The ACS724LMCTR-20AB-T is a Hall-effect based linear current sensor IC manufactured by Allegro MicroSystems. It is designed to provide accurate and easy-to-implement solutions for current sensing applications. The ACS724 series is renowned for its ability to measure both AC and DC currents, with the 20AB variant specifically designed for a sensing range of ±20A.
Key features include a low-noise analog signal path, a bandwidth of 120 kHz, and a response time of 4 µs, making it suitable for fast-changing current applications. The IC operates on a single 5V supply and outputs an analog voltage proportional to the sensed current, typically centered around 2.5V at zero current for bidirectional sensing.
The ACS724LMCTR-20AB-T provides inherent galvanic isolation, which is ideal for high-voltage applications, ensuring safety and protection of the low-voltage side circuits. It is housed in a compact surface-mount SOIC-8 package, facilitating easy integration into various designs. Its accuracy and reliability make it popular in applications such as motor control, load detection, and overcurrent protection.

Equivalent

The ACS724LMCTR-20AB-T is a Hall-effect based linear current sensor. Equivalent products from other manufacturers may include the INA219 from Texas Instruments, the ACS712 series from Allegro MicroSystems, and the LTSR series from LEM. These alternatives offer similar current sensing capabilities but may have different specifications, such as current range, accuracy, or bandwidth. Always compare the specific requirements and specifications to ensure compatibility with your application.

Features

The ACS724LMCTR-20AB-T is a Hall-effect current sensor IC manufactured by Allegro Microsystems. Key features include:
1. Current Sensing Range: It is designed to measure currents up to ±20A.
2. Output: Provides a voltage output linearly proportional to the AC or DC current flowing through the targeted path.
3. Isolation: Offers high isolation from the current path due to its galvanic isolation feature.
4. Accuracy: Features a ratiometric output from supply voltage and excellent linearity, contributing to precise current measurements.
5. Bandwidth: Offers a bandwidth of up to 120 kHz, suitable for various dynamic applications.
6. Response Time: Fast response time of around 5 µs.
7. Supply Voltage: Operates on a single supply voltage, typically between 4.5V and 5.5V.
8. Temperature Range: Operable over a wide temperature range from -40°C to 150°C.
9. Package: Available in a surface mount package, which aids in compact PCB designs.
10. Built-in Protection: Includes overcurrent, overvoltage, and thermal protection features.
These features make the ACS724LMCTR-20AB-T suitable for applications in motor control, load detection, and power management systems.

Pinout

The ACS724LMCTR-20AB-T is a current sensor IC manufactured by Allegro MicroSystems. It comes in a small package with a pin count of 8 pins. This device is designed to measure both AC and DC currents with a sensitivity of 40 mV/A and is capable of handling up to 20A of continuous current.
Key functions and features of the ACS724LMCTR-20AB-T include:
1. Current Sensing: It provides an analog voltage output that is proportional to the sensed current.
2. Isolation: The sensor offers electrical isolation between the current-carrying conductor and the output of the sensor, making it suitable for applications that require safety features.
3. Integrated Shield: It has an integrated shield to reduce capacitive coupling from the current conductor to the IC, ensuring high accuracy.
4. Low Noise: It features low output voltage noise, making it suitable for precision applications.
5. Temperature Range: Operates over a wide temperature range from -40°C to +150°C.
This IC is commonly used in applications such as motor control, load detection, and overcurrent fault protection.

Manufacturer

The ACS724LMCTR-20AB-T is manufactured by Allegro MicroSystems. Allegro MicroSystems is a company that specializes in the design, development, and production of high-performance power and sensing semiconductor solutions. Their products are widely used in various applications, including automotive, industrial, and consumer electronics, focusing on providing efficient and innovative solutions for current and magnetic sensing technologies.

Application

The ACS724LMCTR-20AB-T is a Hall-effect-based linear current sensor used in various applications for measuring AC and DC currents. Key application areas include motor control, power management systems, load detection and management, overcurrent fault protection, and renewable energy systems such as solar inverters. It is also utilized in industrial systems, automotive applications for battery monitoring, and consumer electronics for power supply monitoring. Its ability to provide high accuracy and isolation makes it suitable for precise current sensing in safety-critical and high-performance environments.

Package

The ACS724LMCTR-20AB-T is a Hall-effect-based linear current sensor IC packaged in a surface-mount SOIC8 (Small Outline Integrated Circuit) package.

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