Transphorm and Weltrend Semiconductor’s New GaN System-In-Package Delivers Competitive Advantage by Supporting Multiple Power Levels
December 14 2023 - 8:30AM
Business Wire
Cost-effective SuperGaN IC Supports 65-Watt and
100-Watt Adapters as Proven by Weltrend’s New Reference Design,
Giving Customers Economies of Scale and Unparalleled GaN
Robustness
Transphorm, Inc. (Nasdaq: TGAN), the global leader in robust GaN
power semiconductors, and Weltrend Semiconductor Inc. (TWSE: 2436),
the global leader in adapter USB Power Delivery (PD) Controller
Integrated Circuits (ICs), today announced availability of a 100
watt USB-C PD Power Adapter Reference Design. The board uses the
companies’ SuperGaN® System-in-Package (SiP)—the WT7162RHUG24A—to
achieve 92.7 percent efficiency in a Quasi-Resonant Flyback (QRF)
topology.
This is Weltrend’s second USB-C PD adapter board using the
WT7162RHUG24A in a QRF topology. The first is a 65-watt board
released earlier this year. The fact that both boards deploy the
same SuperGaN SiP is beneficial to customers seeking to achieve
economies of scale and a lower cost implementation for 100-watt
designs compared to the competition. It demonstrates that the
65-watt-class SuperGaN SiP also meets the performance and thermal
requirements of 100-watt designs.
“The idea of a GaN-based integrated circuit is a great one as it
can simplify the design experience. However, it must be done right.
It should be a truly integrated single device with the necessary
controllers packaged inside. Which is where Weltrend and
Transphorm’s SuperGaN SiP excels,” said Philip Zuk, Senior Vice
President, Business Development and Marketing, Transphorm. “The SiP
is a simple, normally-off solution that does not require
protection, a driver, or an external controller. Add to that the
ability for the same SiP to perform in a 65-watt and 100-watt power
adapter board…now we’re seeing the inherent versatility and
robustness of GaN really shine. And that only comes from
Transphorm’s SuperGaN platform today.”
“It’s important to us to ensure what we bring to market the
best, most functional solutions possible. Particularly as we deepen
our footprint in the AC-to-DC power market,” said Wayne Lo, Vice
President of Marketing, Weltrend Semiconductor. “The power adapter
market continues to evolve, innovating around GaN’s very attractive
advantages. We’re just making sure customers can tap into those
advantages not just for technical benefit but for broad ROI benefit
as well. One SiP accommodating an adapter’s physical design needs
plus the financial objectives of an entire adapter line with
varying models is a win for all of us. The 100-watt reference
design released today is a strong proof point of what our
technology can do at lower price points. And we’re just getting
started.”
100-Watt Adapter Reference Design Specifications
Weltrend’s universal 100-watt power adapter board is designed to
the USB PD 3.0 + PPS standards. Its use is intended to speed
development of various high performance, low-profile power adapters
charging smartphones, tablets, laptops, and other smart devices.
Additional key specifications follow:
Specification
Detail
GaN Device
WT7162RHUG24A SuperGaN SiP
Topology
Boundary Mode PFC + Flyback Quasi-Resonant
Mode/Valley-Switching Multi-mode Operation
Full Load Efficiency
91.2% @ 90 VAC/Full Load
Overall Peak Efficiency
92.7% @ 264VAC/Full Load
Power Density
15.8 W/in3 (w/o housing)
Output Voltage Operation
USB-C PD 3.0, PPS 3.3 V - 21 V
No Load Power Loss
< 50 mW @ 264 VAC
Output Voltage and Current
PPS: 3.3 V – 21 V/5 A 5 V/3 A; 9 V/3 A; 12
V/3 A; 15 V/3 A; 20 V/5 A
EMI Compliant
Conducted and Radiated
Dimensions
69mm x 63mm x 23.8mm
The SuperGaN SiP: Compact, Cost Effective, Fast
Development
The WT7162RHUG24A is a true integrated circuit designed for use
in 45- to 100-watt USB-C PD power adapters. It integrates
Weltrend’s WT7162RHSG08 quasi-resonant/multi-mode flyback PWM
controller with Transphorm’s 240 milliohm, 650-volt SuperGaN® FET.
The surface mount device is available in a 24-pin 8x8 QFN package
and offers a peak efficiency of 92.7%. Key benefits include
increased power density with better thermal management for
long-term reliability and reduction of BOM costs. For more
information, visit: https://bit.ly/WeltSiPBdpma.
Availability
For demo board access and/or SiP samples, contact Weltrend’s
sales team at sales@weltrend.com.tw.
About Transphorm
Transphorm, Inc., a global leader in the GaN revolution, designs
and manufactures high performance and high reliability GaN
semiconductors for high voltage power conversion applications.
Having one of the largest Power GaN IP portfolios of more than
1,000 owned or licensed patents, Transphorm produces the industry’s
first JEDEC and AEC-Q101 qualified high voltage GaN semiconductor
devices. The Company’s vertically integrated device business model
allows for innovation at every development stage: design,
fabrication, device, and application support. Transphorm’s
innovations move power electronics beyond the limitations of
silicon to achieve over 99% efficiency, 50% more power density and
20% lower system cost. Transphorm is headquartered in Goleta,
California and has manufacturing operations in Goleta and Aizu,
Japan. For more information, please visit www.transphormusa.com.
Follow us on Twitter @transphormusa and WeChat at
Transphorm_GaN.
About Weltrend Semiconductor Inc.
Founded in 1989 in the "Silicon Valley of Taiwan", the Hsinchu
Science Park, Weltrend Semiconductor, Inc. (TWSE: 2436) is a
leading fabless semiconductor company specializing in the planning,
design, testing, application development, and distribution of
mixed-signal/digital IC products in power supplies, motor controls,
image processing, and more across multiple applications. For more
information, please visit www.weltrend.com.
The SuperGaN mark is a registered trademark of Transphorm,
Inc. All other trademarks are the property of their respective
owners.
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version on businesswire.com: https://www.businesswire.com/news/home/20231214201224/en/
Press Contact: Heather Ailara +1.973.567.6040
heather.ailara@transphormusa.com
Investor Contacts: David Hanover or Jack Perkins KCSA
Strategic Communications transphorm@kcsa.com
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