Allegro MicroSystems simplifies silicon carbide (SiC) power design for AI data centres and EVs with expanded Power-Thru gate driver portfolio.
The new AHV85003/AHV85043 chipset is joining Allegro’s flagship AHV85311 integrated solution, for a complete ecosystem for SiC high-voltage designs in AI data centres, electric vehicles and clean energy systems. The solution eliminates the need for external isolated bias supplies for gate drivers, thus simplifying the design of the power conversion stage.
“We are redefining what engineers should expect from a gate driver,” said Vijay Mangtani, Vice President and GM of High Voltage Power Products at Allegro MicroSystems. “With Power-Thru, we solved the fundamental physics problem of noise in high-voltage systems. Now, by offering both a chipset and an integrated solution, we are giving our customers a complete toolkit. Whether they need the plug-and-play speed of an integrated solution or the granular control of a chipset, they get the same game-changing efficiency and the freedom to use the SiC FETs of their choice.”
Allegro’s Power-Thru isolated gate drivers integrate signal and power across a single isolation barrier. This breakthrough approach reduces common-mode capacitance in the system by up to 15x, addressing a major source of noise that impacts efficiency. They deliver up to a 20dB improvement in electromagnetic interference (EMI) performance, which boosts overall system efficiency and eliminates countless hours spent by designers resolving noise issues.
In addition to addressing the physics of noise, the expanded Power-Thru portfolio is engineered to resolve critical business challenges. To ensure supply chain resilience, both the new AHV85003/AHV85043 chipset and the existing AHV85311 integrated solution support a multi-source SiC strategy. With selectable gate-to-source voltages (Vgs) of 15V, 18V, and 20V, and adjustable regulated negative voltage, designers can easily swap between SiC FETs from different vendors without redesigning their boards.
Furthermore, the portfolio now offers two distinct implementation paths. The flagship AHV85311 integrated solution, which includes the isolation transformer, for accelerated time to market.
