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GaN Systems launches 65W QR charger reference design

GaN Systems, a leading developer of GaN (gallium nitride) power semiconductors, has announced a new reference design for a high power density 65W QR (quasi-resonant) charger targeted at the consumer electronics market.

The reference design comprises of an operating charger and design documentation – providing a complete and simple to implement solution that will help customers to accelerate product development, roll out, and commercialisation.

Driven by the immense consumer demand for smaller, lighter, more energy efficient, and faster charging devices, GaN is fast becoming the technology of choice due to its extremely high switching speed, low on-resistance, and zero reverse recovery. According to the company, its reference design exceeds many designs and is a better alternative to multi-chip, monolithic solution, and other discrete solutions.

Key details

  • Input: 90-265V, ~ 50/60Hz
  • Output: USB-C 5V3A, 9V3A/12V3A/15V3A/20V3.25A 65W max
  • EMI: CISPR22 Conduction and Radiation Class B
  • Power density with case: 18.5 W/in3
  • Supports PD3.0, PPS, QC, QC4.0+, BC1.2
  • Comprehensive protection: OVP, OCP, SCP and open loop

“Smaller, lighter, and higher power are all features that are shifting from ‘want’ to ‘need’ in the consumer electronics markets and the rapid adoption of GaN is an indication of that shift,” said Larry Spaziani, GaN Systems’ Vice President of Global Sales. “This reference design is another great addition to our tools library and the customer feedback confirms it.”

GaN Systems’ 65W QR reference design is intended to make it much easier for power system designers to develop high performance charging solutions, with fewer redesigns, PCB respins, and trips to the lab for testing - decreasing development time and accelerating the time to market for new products.

Neil Tyler

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Looking forward for the design example

Posted by: Yales De Novaes, 17/09/2020

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