Allegro MicroSystems ACS37100 10MHz TMR Current Sensor

Introduction

The Allegro MicroSystems ACS37100 is a high-performance current sensor designed for precision applications. With its advanced tunneling magnetoresistance (TMR) technology, this sensor provides accurate current measurements while ensuring immunity to external magnetic interference. Its factory-trimmed design eliminates the need for customer programming, making it an ideal choice for various electronic applications.

Part Description

The ACS37100 features differential sensing through two TMR elements, which effectively cancels out common-mode magnetic fields. This sensor boasts a remarkable 5000VRMS isolation voltage, ensuring safety and reliability in high-voltage applications. The device operates with a bandwidth of DC to 10MHz and has a typical response time of 50ns, making it suitable for fast control loops and high-speed switching scenarios. Additionally, it includes an adjustable overcurrent fault detection feature, providing hardware protection against short circuits. The sensor operates within a wide temperature range of -40°C to +150°C and is AEC-Q100 automotive qualified, ensuring its robustness in demanding environments.

Applications

• Onboard chargers
• DC-DC converters
• Server power supplies
• Commercial and industrial solar string inverters
• DC electric vehicle (EV) charging systems

Industries

• Automotive
• Renewable energy
• Consumer electronics
• Industrial automation
• Telecommunications

Usage Ideas

1. Electric Vehicle Charging Station: Utilize the ACS37100 to monitor and control the current flowing to an electric vehicle during charging, ensuring safe and efficient operation.
2. Solar Inverter System: Implement the sensor in a solar inverter setup to accurately measure the current output from solar panels, optimizing energy conversion and system performance.
3. Power Supply Monitoring: Integrate the ACS37100 into a server power supply system to detect overcurrent conditions, enhancing the reliability and safety of critical server operations.

Conclusion

The Allegro MicroSystems ACS37100 10MHz TMR Current Sensor is a versatile and reliable solution for a wide range of applications. Its high accuracy, fast response time, and robust design make it an excellent choice for industries requiring precise current measurements and protection against overcurrent conditions. Whether in automotive, renewable energy, or consumer electronics, the ACS37100 stands out as a top-tier current sensing solution.