Our family of fully integrated, high-isolation current sensor solutions provides accurate measurement with very low resistance—all without the need for external isolation components.
Our proprietary packaging uses flip-chip technology which generates excellent magnetic coupling in a coreless package design. Our solutions also provide up to 4800 VRMS galvanic isolation. These low-profile, small form factor packages are ideal for reducing PCB area over sense resistor op-amp or bulky current transformer configurations.
The ACS LTSpice Model Library uses LTSpice SPICE simulation software to create simple, behavioral, and idealized models for Allegro current sensors. These models can be used for simulation purposes to help demonstrate Allegro current sensor behavior in individual customer applications.Learn More
This application note describes multiple methods for measuring and characterizing system bandwidth, with a focus on the impulse response method. Allegro’s ACS720 is the perfect device to validate the test methods outlined here.Learn More
Closed-loop current sensing technology is employed in many industrial and automotive applications for accurate current sensing. Allegro MicroSystems has developed magnetic-based current sensor IC solutions that achieve near closed-loop accuracy using an open-loop topology.Learn More
Allegro MicroSystems has been driving innovation in the current sensor industry for more than 17 years, with a history of first-to-market products that give our customers a competitive edge. Our advanced ICs help you achieve higher efficiency and power density in your designs.Learn More
AN296172 - This application note describes methods of setting the I2C slave address of the ACS71020/ACS37800 and the added functionality of the digital input-output (DIO) pins when operating in I2C mode.Learn More
AN296100 - Recent advancements in integrated Hall-effect current sensor technology provide an alternative current sensing solution that reduces power loss, achieves most cost targets, and occupies a much smaller volume on the application printed circuit board.Learn More
AN296236 - This application note discusses the industry standard of using RΘJA to design for maximum junction temperature and why it does not apply to Allegro MicroSystems integrated conductor current sensors.Learn More
Allegro’s ACS37800 offers its customers the capability to easily monitor and optimize the energy efficiency of power supplies, lighting, and motor control sub-systems in connected building automation solutions while simplifying the system design.Learn More