Allegro takes on French GaN and SiC gate driver specialist

Allegro takes on French GaN and SiC gate driver specialist

Business news |
By Nick Flaherty

Allegro MicroSystems has completed the acquisition of Heyday Integrated Circuits for its fully integrated isolated gate drivers for gallium nitride (GaN) and silicon carbide (SiC) designs.

The deal combines Heyday’s isolated gate drivers and Allegro’s isolated current sensors to enable some of the smallest high-voltage and high-efficiency power systems available on the market today.

Heyday Integrated Circuits was founded in 2014 in Grasse, France, as a fabless semiconductor company focused on designing and selling isolated gate drivers for the power electronics market. It has developed patented technologies resulting in breakthrough isolated gate drive performance.

This expands Allegro’s addressable market for electric vehicles (xEV), solar inverters, datacentre and 5G power supplies, and broad-market industrial applications. This follows the acquisition of automotive lidar maker Voxtel, where the gate driver for the power devices driver in the laser is a key component.

Heyday uses standard 180nm CMOS technology from dual-sourced tier one fabs as well as industry leading packaging vendors and a range of second-source strategies.

“The demand for simplified power management is increasing across the board, and high-voltage isolated gate drivers are fundamental for enabling technology for the future of high-efficiency power system designs” said Joe Duigan, Senior Director, Engineering and Business Development. “Together with Allegro’s market leading current sensors and Heyday’s isolated gate drivers we will be able to power the increasingly popular GaN and SiC MOSFET driven systems.”

“We’re thrilled to welcome Heyday to the Allegro family,” said Vijay Mangtani, Vice President of Power ICs at Allegro. “This acquisition will greatly accelerate our efforts to deliver a market leading energy efficient technology platform for high-voltage designs in advanced mobility, clean energy, and motion control solutions.”;  

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