Alpha and Omega Semiconductor Announces Wireless Charging Transmitter Solutions
March 03 2022 - 8:00AM
Business Wire
50W AOZ32034AQV Half-Bridge Power Stage Offers
Power Dense Solution for Wireless Charging Applications
Alpha and Omega Semiconductor Limited (AOS) (Nasdaq: AOSL), a
designer, developer, and global supplier of a broad range of power
semiconductors, power ICs, and digital power products, today
announced the release of AOZ32034AQV, a new product in the family
of coil drivers for wireless charging transmitter circuits of up to
50W. Packaged in a thermally enhanced QFN 4 x 4 package, the device
is designed for wireless charging applications in charging
stations, cordless power tools, vacuum cleaners, drones, and other
consumer electronic equipment.
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the full release here:
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Coil Driver for Wireless Charging
(Graphic: Business Wire)
The AOZ32034AQV offers a higher power rating of up to 50W
compared to the previous device in this family, the AOZ32033AQI,
that was suited for 30W applications. Wireless charging circuits
use a full-bridge topology with a resonant tank circuit to get the
best power conversion efficiency. The AOZ32034AQV half-bridge power
stage simplifies the implementation of this topology over discrete
approaches. A key feature of this product family is the ability to
adjust MOSFET gate drive using the slew rate control (SRC) pin.
This allows a system designer to optimize the design by making
trade-offs between EMI and efficiency. The device can be used for a
wide range of input voltages from 4V to 28V.
“Wireless charging offers convenience in many applications.
Implementations, especially in applications sensitive to EMI, can
be complex. AOS’s new half-bridge power stage for coil drivers
reduces these complexities while reducing solution footprint,” said
Armin Hsu, Power IC Marketing Manager at AOS.
Technical Highlights
- Integrated Half-Bridge Power Stage and bootstrap diode with
wide input voltage (4V to 28V) range enables reduced PCB size
- Low RDS(ON) internal N-FETs for both HS/LS supports TX circuit
designs of up to 50W
- Adjustable MOSFET gate slew rate control (SRC) for an optimal
trade-off between EMI and efficiency
- Robust and Reliable with built-in protection: OTP, VCC UVLO,
Bootstrap UVLO
- Thermally enhanced QFN4x4 package
Coil Driver Family Product List
Part Number
Vin max.
Integrated MOSFET
Wireless Charging Transmitter
(TX) Capability
Package
AOZ32033AQI
28V
11mohm
Up to 30W
18-Pin, QFN3x3
AOZ32034AQV
28V
7.5mohm
Up to 50W
23-Pin, QFN4x4
Pricing and Availability
The AOZ32034AQV is immediately available in production
quantities with a lead-time of 24 weeks. The unit price in 1,000pc
quantities is $1.0 for AOZ32034AQV.
About AOS
Alpha and Omega Semiconductor Limited, or AOS, is a designer,
developer, and global supplier of a broad range of power
semiconductors, including a wide portfolio of Power MOSFET, IGBT,
IPM, TVS, HVIC, SiC/GaN, Power IC, and Digital Power products. AOS
has developed extensive intellectual property and technical
knowledge that encompasses the latest advancements in the power
semiconductor industry, which enables us to introduce innovative
products to address the increasingly complex power requirements of
advanced electronics. AOS differentiates itself by integrating its
Discrete and IC semiconductor process technology, product design,
and advanced packaging know-how to develop high-performance power
management solutions. AOS’s portfolio of products targets
high-volume applications, including portable computers, flat-panel
TVs, LED lighting, smartphones, battery packs, consumer and
industrial motor controls, automotive electronics, and power
supplies for TVs, computers, servers, and telecommunications
equipment. For more information, please visit www.aosmd.com.
Forward-Looking Statements
This press release contains forward-looking statements based on
current expectations, estimates, forecasts, and projections of
future performance based on management’s judgment, beliefs, current
trends, and anticipated product performance. These forward-looking
statements include, without limitation, references to the
efficiency and capability of new products and the potential to
expand into new markets. Forward-looking statements involve risks
and uncertainties that may cause actual results to differ
materially from those contained in the forward-looking statements.
These factors include but are not limited to the actual product
performance in volume production, the quality and reliability of
the product, our ability to achieve design wins, the general
business and economic conditions, the state of the semiconductor
industry, and other risks as described in the Company’s annual
report and other filings with the U.S. Securities and Exchange
Commission. Although the Company believes that the expectations
reflected in the forward-looking statements are reasonable, it
cannot guarantee future results, level of activity, performance, or
achievements. You should not place undue reliance on these
forward-looking statements. All information provided in this press
release is as of today’s date unless otherwise stated, and AOS
undertakes no duty to update such information, except as required
under applicable law.
View source
version on businesswire.com: https://www.businesswire.com/news/home/20220303005327/en/
Mina Galvan Tel: 408.789.3233 Email: mina.galvan@aosmd.com
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