ACS758LCB

series introduction

# ACS758LCB Product Series Introduction

## 1. Overview
The ACS758LCB product series is a cutting - edge line of current sensor solutions developed by Allegro MicroSystems. These sensors are designed to provide accurate, reliable, and cost - effective current measurement in a wide range of applications. With their advanced technology and high - performance features, the ACS758LCB series has become a popular choice for engineers and designers across various industries.

## 2. Key Features

### 2.1 High Accuracy
One of the standout features of the ACS758LCB series is its high accuracy in current measurement. These sensors offer a typical accuracy of ±1.5% over the full temperature range, which ensures precise and consistent readings. This high level of accuracy is crucial in applications where even small errors in current measurement can lead to significant performance issues or safety risks.

### 2.2 Wide Current Range
The ACS758LCB series is available in multiple current ranges, from ±5 A to ±100 A. This wide range of options allows users to select the sensor that best suits their specific application requirements. Whether it's measuring low - level currents in battery - powered devices or high - current applications in industrial machinery, the ACS758LCB series has a suitable solution.

### 2.3 Isolation
These sensors provide excellent electrical isolation between the measured current path and the output signal. The isolation voltage can reach up to 2.1 kV RMS, which helps protect the measurement circuitry from high - voltage transients and ensures the safety of the system. This isolation feature is particularly important in applications where there is a risk of electrical shock or interference, such as in power distribution systems and motor control applications.

### 2.4 Fast Response Time
The ACS758LCB series offers a fast response time, typically less than 5 μs. This rapid response allows the sensors to accurately track fast - changing currents, making them suitable for applications that require real - time current monitoring, such as in switch - mode power supplies and inverters.

### 2.5 Low Noise
The sensors are designed to have low electrical noise, which results in a clean and stable output signal. This low - noise characteristic is essential for applications where accurate and reliable current measurement is required, as it reduces the interference and improves the signal - to - noise ratio.

### 2.6 Small Form Factor
The ACS758LCB series comes in a compact and space - saving package. The small form factor makes it easy to integrate these sensors into various circuit designs, especially in applications where board space is limited, such as in portable devices and automotive electronics.

## 3. Working Principle
The ACS758LCB sensors are based on the Hall - effect principle. When a current flows through the primary conductor, it generates a magnetic field around it. The Hall - effect sensor within the ACS758LCB device detects this magnetic field and converts it into a proportional output voltage. This output voltage is then calibrated to represent the measured current accurately.

## 4. Applications

### 4.1 Industrial Automation
In industrial automation systems, the ACS758LCB series is used for motor control, power monitoring, and fault detection. Accurate current measurement is essential for ensuring the proper operation of motors, detecting overloads, and preventing equipment damage. The high accuracy and fast response time of these sensors make them well - suited for these applications.

### 4.2 Power Electronics
In power electronics applications, such as switch - mode power supplies, inverters, and battery chargers, the ACS758LCB series is used to monitor and control the current flow. By accurately measuring the current, these sensors help optimize the efficiency of the power conversion process, improve the reliability of the system, and

Images for reference

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Datasheets

• ACS758xCB
• PDF 2

Partlist