ACS758 Current Sensor Module (Model: ACS758LCB-100B PFF-T)

The ACS758 Current Sensor Module (Model: ACS758LCB-100B PFF-T) is a linear Hall-effect–based sensor designed to measure high current with high accuracy and electrical isolation. Using Allegro’s advanced Hall-effect technology, this module converts current through a conductor into a proportional voltage output, allowing precise current monitoring for Arduino, Raspberry Pi, or industrial systems.

With a measurement range of ±100A, this sensor is ideal for DC motor drives, inverters, power supplies, battery monitoring, and energy metering applications. The onboard low-noise amplifier ensures clean signal output for microcontrollers and data acquisition systems.

⚙️ Key Features & Highlights:

• ⚡ High Current Range: Measures up to ±100A (bidirectional).

• 🔒 Galvanic Isolation: Provides complete electrical isolation between input and output.

• 🎯 Accurate and Stable: Typical sensitivity of 40 mV/A with low offset error.

• 🧠 Linear Hall Effect Technology: Delivers proportional voltage output for real-time current sensing.

• 🌡️ Wide Operating Temperature: Works reliably from -20°C to +85°C.

• 🔧 Compact Design: Easy integration into power circuits and Arduino projects.

• 🔋 Low Power Consumption: Ideal for embedded and portable systems.

• 🔗 Compatible with: Arduino Boards, Raspberry Pi, and other microcontroller platforms.

⚙️ Technical Specifications:

⚙️ Working Principle:

The ACS758 sensor operates using the Hall effect, detecting the magnetic field generated by current flowing through a conductor. The Hall element produces a voltage proportional to the magnetic field, which corresponds to the current magnitude. This voltage is then amplified and output as a linear analog signal for precise current measurement — ensuring safe and isolated sensing in both AC and DC systems.

⚙️ Applications:

• 🔋 Battery Management Systems (BMS)

• ⚙️ DC/AC Motor Control and Drives

• 🔌 Power Supply and Inverter Monitoring

• 💡 Solar Energy Systems and Load Monitoring

• 🚗 Automotive Current Sensing

• 🧠 IoT Energy Monitoring Projects

• 🔧 DIY & Industrial Automation Systems

For projects involving current sensing and control, this module pairs perfectly with Electronics Components and Arduino and Accessories categories available at Electroway.

⚙️ Precautions:

• ⚠️ Ensure proper polarity connection (VCC, GND, OUT).

• ⚠️ Avoid overcurrent beyond ±100A limit.

• ⚠️ Mount the sensor securely to reduce vibration interference.

• ⚠️ Use a stable 5V power supply for accurate readings.

• ⚠️ Calibrate in software if precise offset correction is needed.

▶️ YouTube Tutorial Video:

Watch: How to Use ACS758 Current Sensor with Arduino

🔹 Internal Links:

• 🔗 Arduino Boards

• 🔗 Electronics Components

• 🔗 Power Supply Modules

• 🔗 Sensors and Modules

🔹 Product Summary:

The ACS758LCB-100B PFF-T Current Sensor Module delivers industrial-grade accuracy and isolation for high-current applications. Its Hall-effect sensing, ±100A range, and fast response make it ideal for power systems, robotics, and energy monitoring. With seamless integration into Arduino and Raspberry Pi environments, it’s a versatile choice for both DIY makers and engineers.