Next generation GaN charger sets new standards for performance and size

Navitas Semiconductor has announced that Navitas' GaNSense Control ICs will power Xiaomi's next generation 90W GaN charger. As the world's smallest 90W charger, this ultra-compact, high-power-density form-factor measures just 34mm × 45mm × 34mm and weighs only 65g, approximately half the size and a third the weight of typical GaN chargers.

The charger integrates Navitas' NV9580 GaNSense Control power IC on the primary side and the NV9701 synchronous rectification controller IC on the secondary side. The GaNSense Control family combines fourth-generation GaN power with high-frequency control functionality. It delivers all the benefits of a monolithically integrated GaN power FET and GaN drive, plus a controller and protection features in a single surface-mount package for high-density, high-efficiency chargers, adapters, and auxiliary power designs.

GaNSense Control ICs provide the highest-frequency operation to minimise system size and weight. Integrated features such as lossless current sensing, high-voltage start-up, and elimination of VDD inductor lower component count and increase system efficiency. With transient voltage breakdown up to 800 V and no PCB hotspots, the GaNSense Control ICs deliver best-in-class efficiency in the smallest form factor.

"The launch of Xiaomi's 90W GaN charger marks a new milestone in our long-standing collaboration with Xiaomi," said Charles Zha, SVP and APAC GM of Navitas. "Combining the innovation of GaNSense Control ICs and Xiaomi's leading system expertise, we have delivered a new benchmark for ultra-portable fast-chargers. Navitas will continue our partnership with Xiaomi to continue future innovations with our GaN technology."