Powering AI, Efficiently: Allegro and Innoscience Redefine the Data Center PSU

Server racks in a modern AI data center, illustrating the high-power-density environment where Allegro and Innoscience's all-GaN PSU reference design operates.

In the race to power the AI revolution, a new engineering challenge has emerged: deliver unprecedented power in shrinking spaces, all while managing immense thermal loads. As data centers scale to meet the demands of AI, traditional power supply designs are hitting a wall, forcing engineers to find smarter solutions.

So, how do you break through?

At Allegro, we believe the answer lies in smarter technology and industry collaboration. That’s why we’re excited to highlight a new 4.2kW all-GaN reference design from Innoscience, which features our Power-Thru advanced gate driver technology. This isn’t just another reference design; it’s a blueprint for the future of AI power, delivering Titanium-grade efficiency and exceptional power densities exceeding 100 W/in³.

The Secret Sauce: A Driver That Does More

 At the heart of this powerful design is Allegro’s AHV85110 isolated gate driver. We engineered specifically to solve the biggest headaches in high-frequency GaN design.

Instead of just driving the switch, our driver simplifies your entire system:

  • Slash Your Component Count: The AHV85110 integrates a self-powered architecture. By integrating the bias supply into the driver, designers can reduce the passive component count on the driver card by a remarkable 80%, contributing to a15% reduction in system-level components. That means less complexity, a smaller footprint, and a faster design cycle.
  • Crush EMI Noise: High-frequency switching creates noise. Our driver features ultra-low 2.2 pF common mode capacitance—five to ten times lower than traditional solutions—which significantly reduces EMI and enables cleaner, more reliable operation.
  • Flexible Thermal Design: The driver’s low-profile package is designed for modern power stages, supporting both top-side and dual-side cooling for maximum layout flexibility and thermal headroom.

Advanced Technology for Proven Performance

This reference design showcases what’s possible when industry leaders work together. As  Larry Chen, Vice President of Product Application at Innoscience, put it,  “By combining our leading GaN power devices with Allegro’s advanced driver technology, we offer a comprehensive power supply solution that helps engineers optimize size, design efficiency and power density and accelerates time to market for next generation AI solutions.”

Our own Vice President of Power Products, Vijay Mangtani, sees this as a reflection of our core philosophy: “At Allegro, our core philosophy is to be a true technology partner for our customers. We work closely with them to understand their toughest challenges and provide the foundational solutions they need to innovate and lead.”

What This Means for Your Next Design:

This reference design isn't just a concept; it's a set of tangible benefits you can bring to your next project.

  • Achieve Titanium-grade efficiency for AI and edge workloads.
  • Boost power density by 30% over comparable solutions.
  • Simplify your driver stage and accelerate your design cycle.
  • Reduce EMI for cleaner, more robust operation.
  • Optimize your thermal and layout performance.

 

Ready to Get Started?
Innoscience’s 4.2kW all-GaN reference design is available now with documentation, efficiency data, and design files provided upon request. To explore Allegro’s high-performance isolated gate drivers—and see how Power-Thru technology can unlock new levels of efficiency and power density in your designs—visit https://www.allegromicro.com/en/products/motor-drivers/gate-drivers.