Allegro has been driving innovation in the current sensor industry for nearly 20 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. Our fully integrated solutions make design-in easy.
We're leading the market in main traction motor and auxiliary inverters for electric vehicles, and OEMs trust Allegro for applications like DC to DC converters and on-board chargers.
We also shine at high voltage with industry leading isolation ratings of up to 1100Vrms—ideal for residential and industrial solar inverter applications.
Our packages have the highest working voltages in SOIC-16 footprint
Allegro’s current sensors include fast over-current detection in addition to a precision analog output.
High speed integrated sensors are the smart alternative to bulky current transformers (CTs).
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 high current sensor IC packages are fully integrated solutions that also provide high accuracy and reliability. These sensors are automotive-grade devices that can take the heat and deliver highly accurate open-loop current sensing in the harshest applications environments.
First Voltage, Current, and Power monitoring IC with reinforced isolation for AC and DC single-phase applications, reducing needed PCB space and CPU cycles
Watch video explaining and demonstrating a method for rejecting stray magnetic fields in Hall-effect-based current sensors using the ACS724. This technology solves interference and cross-talk issues, greatly simplifying the use of magnetic current sensors in magnetically noisy environments, such as ...Learn More
The Allegro ACS712 provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, ...Learn More
This article will discuss two new innovative approaches to measure currents up to 600 A in PCB: a near-lossless Hall-based current sensor with an integrated conductor and a non-invasive standalone core-free and shield-free differential Hall current sensor.Learn More