AES Semigas


10 August 2021

Transphorm collaborates with Salom to deliver Quick Charge 5-compliant 100W USB-C PD PPS charger

Transphorm Inc of Goleta, near Santa Barbara, CA, USA — which designs and manufactures JEDEC- and AEC-Q101-qualified gallium nitride (GaN) field-effect transistors (FETs) for high-voltage power conversion applications — has announced a collaboration with consumer electronics power supply manufacturer Salom to bring to market a Quick Charge 5-compliant 100W GaN power adapter that is slated for release in fourth-quarter 2021.

The new USB-C Power Delivery (USB-C PD) charger will pair with Quick Charge 5 technology — capable of charging smartphones from 0 to 50% in 5 minutes. It will be a universal adapter offering the traditional power delivery mode and the USB-C programmable power supply (PPS) mode version 3.0, which enables the charger to easily deliver a sliding range of voltages (3.3-21V) versus the traditional mode’s stepped voltage output.

With assistance from Qualcomm Technologies Inc, Transphorm developed the adapter’s specification and designed the overall functional product, from the universal input through to the USB-C PD/PPS output. Transphorm’s GaN is used in the traditional AC-to-DC boost PFC and the DC-to-DC quasi-resonant flyback (QRF) topologies. Salom was responsible for then taking that designed system, fine tuning it, developing its enclosure and completing all the required certifications such as Quick Charge 5, conducted/radiated emissions, touch temperature, and others.

“Adapter solutions with Transphorm’s GaN enable more with less,” says Philip Zuk, senior VP of worldwide technical marketing & business development, Transphorm. “Compared to other GaN solutions such as e-mode, our normally-off SuperGaN FETs offer ease of design and standard silicon-like drivability while delivering more power in a considerably smaller footprint without compromise,” he claims. “And we’ve proven that our production yields can meet high-volume requirements.”

“We were able to go from concept to production in a short time,” notes Joseph Reisinger, president of Salom America Co. “The collaboration and commitment demonstrated by Transphorm and Salom has been strong.”

See related items:

Silanna and Transphorm develop 65W USB-C PD GaN adapter reference design

GaN Systems and Silanna release 65W ACF GaN charger reference design

Transphorm introduces SuperGaN power FETs with launch of Gen IV GaN platform

Tags: Transphorm GaN-on-Si GaN HEMT