Allegro MicroSystems launches new isolated gate driver IC that enables leading power conversion density

AHV85110 is the first release in the Power-Thru product series, providing 2x power density and simpler and more efficient system design

Manchester, New Hampshire, USA - Allegro MicroSystems (hereinafter referred to as Allegro), a global leader in sensing and power semiconductor solutions for motion control and energy-saving systems, announced the launch of the new power-Thru isolated gate driver AHV85110 . This isolated gate driver provides a A single package solution capable of driving GaN FETs, the first in the Power-Thru product family. Compared with competing products on the market, this solution occupies 50% less space and improves efficiency by 40%.

The global clean energy market requires automotive and industrial power system designers to generate, store and use energy more efficiently, and wide-bandgap silicon carbide (SiC) and gallium nitride (GaN) field-effect transistors (FETs) can provide this at the system level. There are obvious efficiency advantages, but they are often accompanied by some huge integration challenges.

Traditional gate driver implementation requires an isolated gate driver and a separate isolated power supply. During system assembly, the connections between the driver, power supply, and FETs may introduce unnecessary noise and generate electromagnetic interference (EMI), thereby reducing System performance. Mitigating these impacts can result in additional design complexity, increased project schedule time and cost, as well as the size and weight of the solution.

Allegro's patented, highly differentiated Power-Thru gate driver (AHV85110) provides designers with a new high-efficiency, high-power isolated gate drive technology that enables multiple system-level benefits. The new gate driver uses innovative and unique technology to combine the traditionally separate isolated gate driver and isolated power supply into a single, compact, rugged package. Allegro's new platform can minimize the paths that generate EMI and simplify system integration, thereby shortening time to market, while improving efficiency and saving production costs. This is a perfect example of "less is more".

"Our engineering team leveraged previously acquired Heyday Integrated Circuits Heyday technology to quickly develop the first device in our Power-Thru portfolio to help designers achieve clean energy," said Vijay Mangtani, vice president and general manager, High Voltage Power, Allegro MicroSystems. and efficiency and power density targets in electric transportation systems. This new family of patented, industry-leading solutions enables engineers to build smaller, more efficient systems while reducing time to market and maximizing investments. "Return."

Allegro's unique Power-Thru technology offers the following advantages compared to other solutions:

• Provide more power and efficiency by using only 50% of the design footprint (saving PCB space).

• Reduced bill of materials (BOM) quantities and production costs.

• No need for bootstrap circuit and isolated power supply, while minimizing common-mode capacitance, thereby reducing EMI filter design workload and improving overall efficiency.

• Eliminates the need to completely redesign the power module when working with multiple GaN FET suppliers, enabling a reliable, scalable design flow across platforms.