Navitas powers Xiaomi’s In-Box GaN 100W laptop fast charge

29th June 2022

Sheryl Miles

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Navitas Semiconductor, supplier of gallium nitride (GaN) power integrated circuits, has announced that its Xiaomi Redmi laptop family 100W fast chargers are driven by next-gen GaNFast power ICs with GaNSense technology.

Consumer electronics giant Xiaomi has adopted GaNFast technology to develop a compact, high-power-density charger now shipping with all new Xiaomi RedmiBook Pro 14 laptops and the integrated-GPU version of the RedmiBook Pro 15.

The new RedmiBook Pro 14 and RedmiBook Pro 15 lightweight 14” and 15” laptops are built around 12^th gen Intel Core i5 and Intel Core i7 mobile processors and are ideal for gamers and other users requiring portable computing power. Thanks to Navitas’ GaNFast technology, the small form-factor 100W fast charger supplied ‘in-box’ fast-charges from 0-50% in less than 40 minutes.

Measuring 60 x 58 x 31.6mm (110cc), the Xiaomi 100W achieves a power density of 0.91W/cc with universal input voltage (90VAC to 264VAC) and full USB power-delivery output range (5V/3A, 9V/3A, 15V/3A and 20V/5A) to ensure compatibility with a wide range of other devices, including the latest Xiaomi mobile phones. Two Navitas NV6134A GaN power ICs – with GaNSense technology – are used in the charger’s CrCM boost PFC and HFQR topologies. The loss-less current-sensing function saves costs and improves charging efficiency, and temperature protection, over-current protection, and autonomous standby-mode delivers system reliability for Xiaomi notebook chargers.

Xuezhong ZENG, senior vice president of Xiaomi Group and president of Smartphone Department noted: "Since the launch of Xiaomi Mi 10 Pro with GaNFast charger in early 2020, Xiaomi has always been committed to the exploration of charging technology to maintain technological leadership in mobile phone fast charging applications. Now, with our RedmiBook Pro series launching with 100 W inbox GaN fast charger, Xiaomi laptops have also entered the era of GaNFast charging. We hope our GaN technology cooperation with Navitas will bring a more efficient and convenient user experience to broader laptop consumers.

Commenting on the relationship with Xiaomi, Charles ZHA, the VP and GM of Navitas China, stated: “Most laptop OEMs are still using heavy, bulky, silicon-based ‘brick’ adapters. Our collaboration with Xiaomi has resulted in a fast-charging, mobile adapter that is much smaller and lighter, while delivering significantly improved charging performance.”