A single device that can channel high-voltage currents both ways, cutting complexity, unlocking efficiency, and redefining what power conversion can achieve.
Renesas has unveiled the TP65B110HRU, the industry’s first bidirectional GaN switch with DC blocking, designed for solar microinverters, AI data centers, and onboard EV chargers. The device combines high-voltage performance with low loss and fast switching, simplifying power converter designs that traditionally relied on back-to-back FETs.
The bidirectional architecture delivers tangible benefits for engineers and system designers. By integrating both positive and negative current blocking into a single device, the device reduces component count and allows single-stage power conversion. For example, a solar microinverter can achieve over 97.5% efficiency using just two of these GaN switches, eliminating intermediary DC-link capacitors and cutting switch requirements by half. The result is smaller PCB footprints, lower system cost, and faster design cycles.
Beyond efficiency, the device offers robust advantages in operation and compatibility. It works seamlessly with standard gate drivers, requires no negative gate bias, and supports both soft- and hard-switching topologies, including Vienna-style rectifiers. Co-packaged low-voltage MOSFETs provide high gate margin and efficient reverse conduction, while fast, clean transitions enable higher switching frequencies and improved power density.
Engineers also benefit from a comprehensive feature set: ±650V continuous peak AC/DC rating, ±800V transient rating, >100 V/ns dv/dt immunity, and a top-side cooled TOLT package with industry-standard pinout. The combination of performance, reliability, and simplicity makes it a versatile solution for a range of high-efficiency power designs.
“Extending our SuperGaN technology to bidirectional switches marks a major shift in power conversion design norms,” said Rohan Samsi, Vice President, GaN Business Division at Renesas. “Customers can now achieve higher efficiency with fewer components, smaller PCB area, and lower system cost while accelerating design using Renesas’ integrated solutions.”
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