Allegro MicroSystems Expands Power-Thru™ Gate Driver Portfolio for High-Voltage SiC Applications
MANCHESTER, N.H., Jan. 05, 2026 (GLOBE NEWSWIRE) -- Allegro MicroSystems, Inc. (“Allegro”) (Nasdaq: ALGM), renowned for its leadership in power and sensing solutions, has announced a significant enhancement to its Power-Thru™ isolated gate driver portfolio. The introduction of the AHV85003/AHV85043 chipset, alongside the existing AHV85311 integrated solution, establishes a robust ecosystem tailored for high-voltage silicon carbide (SiC) applications in AI data centers, electric vehicles (EVs), and clean energy systems.
Innovative Design for Simplified Power Conversion
The new chipset simplifies power conversion challenges by removing the necessity for external isolated bias supplies for gate drivers. This advancement not only provides the industry's smallest solution footprint but also significantly reduces the bill of materials (BOM), addressing the vital issue of maximizing power density in demanding 800V systems.
Enhanced Performance and Noise Reduction
Allegro’s Power-Thru™ technology integrates signal and power across a single isolation barrier. This innovative approach achieves a reduction in common-mode capacitance by up to 15 times, which is a notable accomplishment in addressing the prevalent issue of noise that detracts from system efficiency. Furthermore, these gate drivers offer up to a 20dB improvement in electromagnetic interference (EMI) performance, significantly boosting overall system efficiency and alleviating the design community from extensive troubleshooting related to noise.
Addressing Market Needs with Flexible Solutions
In an effort to fortify supply chain resilience, both the AHV85003/AHV85043 chipset and the established AHV85311 solution are designed with a multi-source SiC strategy in mind. With selectable gate-to-source voltages (Vgs) of 15V, 18V, and 20V, this new chipset allows designers to seamlessly transition between SiC FETs from various vendors without the need for board redesigns.
Two Distinct Implementation Paths for Designers
The expanded portfolio offers engineers two viable implementation paths. The flagship AHV85311 integrated solution, which includes an isolation transformer, provides a straightforward route that accelerates time-to-market. In contrast, the versatile AHV85003/AHV85043 chipset gives designers the freedom to optimize their designs for cost and layout by selecting suitable external transformers based on their isolation requirements.
Quotes from Allegro Leadership
Vijay Mangtani, Vice President and GM of High Voltage Power Products at Allegro MicroSystems, stated, “We are redefining what engineers should expect from a gate driver. 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." He emphasized that whether designers require the plug-and-play convenience of an integrated solution or the granular control offered by a chipset, they will experience the same revolutionary efficiency and the flexibility to utilize their preferred SiC FETs.
Resources for Designers
For those looking to simplify their SiC power design, datasheets, samples, and recommended transformer options for the AHV85003/AHV85043 chipset can be accessed at www.allegromicro.com/ahv85003-43.
About Allegro MicroSystems
Allegro MicroSystems, Inc. draws on over three decades of expertise in magnetic sensing and power integrated circuits (ICs) to advance automotive, clean energy, and industrial automation sectors. Their innovative solutions enhance efficiency, performance, and sustainability, solidifying Allegro's reputation as a pioneer in automotive-grade technology and a valued partner to their customers. For further information, visit https://www.allegromicro.com/en/.