4 August 2020
GaN Systems announces 65W QR charger reference design
GaN Systems Inc of Ottawa, Ontario, Canada (a fabless developer of gallium nitride-based power switching semiconductors for power conversion and control applications) has announced a new reference design for a high-power-density 65W QR (quasi-resonant) charger targeted at the consumer electronics market, including mobile phone and laptop computer applications.
The reference design consists of an operating charger and design documentation, providing a complete and simple-to-implement solution that assists customers in accelerating product development, roll out and commercialization, says the firm.
Driven by the immense consumer demand for smaller, lighter, more energy efficient and faster charging devices, GaN has become the technology of choice to deliver these benefits, the company states. GaN makes this possible with attributes such as extremely high switching speed, low on-resistance and zero reverse recovery, it adds. The GaN-based reference design exceeds many designs and is a better alternative to a multi-chip, monolithic solution and other discrete solutions, it is claimed.
Key details include:
- 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: 18.5W/in3;
- supports PD3.0, PPS, QC, QC4.0+, BC1.2;
- comprehensive protection: OVP, OCP, SCP and open loop.
GaN Systems says that the 65W QR reference design makes it straightforward for power system designers to develop high-performance charging solutions, while benefitting from fewer re-designs, fewer PCB re-spins, and fewer trips to the lab for testing. The reduced development time enables companies to accelerate the time to market for new products.
“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,” says Larry Spaziani, VP of global sales. “This reference design is another great addition to our tools library.”