800V architectures emerged as key enablers for faster charging and longer ranges in electric vehicle applications like passenger cars and commercial fleets. For instance, premium EVs now deliver 10-15 minute charges at 350kW stations. Thus, components like advanced gate drivers become essential to handle rising voltages efficiently. This context sets the stage for innovations addressing power density and noise challenges head-on.
​Power-Thru Portfolio Targets High-Voltage EV Needs
Allegro MicroSystems recently launched the AHV85003/AHV85043 chipset, expanding its Power-Thru isolated gate driver lineup. This Allegro addition creates a full ecosystem for silicon carbide (SiC) designs in electric vehicles. Engineers now tackle 800V systems with greater ease, boosting applications from sedans to heavy-duty trucks. Previously, high-voltage setups struggled with noise and interference. However, Power-Thru integrates signal and power across one isolation barrier. As a result, common-mode capacitance drops by up to 15 times. Plus, electromagnetic interference improves by 20dB, ensuring reliable operation.
​SiC Advantages Drive EV Efficiency
Silicon carbide components excel in electric vehicle applications due to superior thermal performance and switching speeds. They allow smaller, lighter inverters that extend driving range. For example, many 2026 EVs adopt SiC for 800V platforms, cutting energy loss by 30% compared to silicon alternatives. Allegro’s drivers support selectable gate-to-source voltages of 15V, 18V, or 20V. Therefore, designers switch SiC suppliers seamlessly without board changes. This flexibility accelerates development for diverse EV models, including SUVs and delivery vans. Moreover, the chipset lets users pick external transformers for custom isolation needs.
​Integrated Solution Speeds EV Development
The flagship AHV85311 offers an all-in-one option for rapid prototyping. Teams deploy it quickly in electric vehicle powertrains, saving weeks on design iterations. In contrast, the chipset provides granular control for optimized systems. Both options solve noise issues rooted in high-voltage physics. Vijay Mangtani, Allegro’s VP of High Voltage Power Products, highlights this dual approach. “Power-Thru gives customers a complete toolkit,” he states. “Choose plug-and-play speed or detailed customization—efficiency stays game-changing.” Consequently, EV makers integrate these drivers into AI data centers and clean energy too, broadening impact.
​Broader Applications Beyond Passenger EVs
Electric vehicle applications extend to fleets and infrastructure. SiC gate drivers enhance traction inverters, vital for buses and logistics trucks navigating urban routes. They also support solar inverters in charging stations, aligning with grid decarbonization. By 2026, analysts predict used EVs will flood markets, driving demand for reliable components. Allegro’s portfolio fits perfectly, as 800V adoption hits 40% in premium segments. Transitioning smoothly, these tools lower costs and boost scalability. Overall, innovations like Power-Thru propel sustainable mobility forward.
​In summary, Allegro ‘s expanded SiC gate drivers transform electric vehicle applications by conquering high-voltage hurdles. Faster, quieter systems pave the way for mainstream 800V EVs. As sales climb into 2026, such advancements ensure cleaner, more efficient transport. Engineers gain versatile tools, while drivers enjoy better performance daily.
