Smart protection switch provides industry-leading performance, up to
28V over-voltage protection for Type-C PD port applications
SUNNYVALE, Calif.--(BUSINESS WIRE)--
Alpha
and Omega Semiconductor Limited (AOS) (Nasdaq: AOSL), a designer,
developer and global supplier of a broad range of power semiconductors
and power ICs, announced today a new Type-C Power Delivery compliant
input protection switch with up to 28V over-voltage protection. The AOZ1376
is a smart protection switch with reverse current blocking capability
intended for applications where internal circuitry requires protection
from exposure to high voltages. This new device offers low RDS(ON)
(20mohm) in a thermally enhanced 3x3mm DFN package, made possible by
AOS’ advanced co-packaging technology, combining a high performance IC
with protection features and our latest high SOA MOSFET. The AOZ1376
provides an ideal solution for the latest notebooks, ultra books,
dongles, and docking stations, with Thunderbolt/USB Type-C PD ports.
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Best Type-C PD Input Protection (Graphic: Business Wire)
Typically, USB Type-C sinking applications are protected from a reverse
current using a circuit that uses two discrete back to back MOSFETs
along with resistors and capacitors to provide basic soft start
functionality; however programmability and protection features are
lacking in this implementation. The AOZ1376 overcomes these
disadvantages, saving both component count and PCB footprint while
offering a robust protection feature set to increase the reliability of
end products using Type-C power delivery.
“The thinner profile, higher power and greater flexibility offered by
USB Type-C and USB PD 3.0 standards have prompted many computer
manufacturers to drop the barrel jack in favor of USB Type-C ports for
charging their notebook and ultra book offerings; and for the best user
experience many of these devices allow the laptop to charge from any of
the USB Type-C ports. This makes reverse voltage protection imperative
for these devices,” said Mehdy Khotan, Power IC Marketing Director at
AOS. “AOZ1376 is used in the Type-C charging path of such devices. It
not only protects the laptop and its battery from over voltage and over
current, but it also prevents an unintended reverse current and over
voltage on the opposite port, protecting the laptop’s peripheral
devices.”
Technical Highlights
The AOZ1376 operates from 3.4V to 22V on VIN. Both VIN and VOUT are
rated at 28V Absolute Maximum. The back-to-back switch configuration
blocks any current flow between VIN and VOUT pins when the device is
disabled or when the device is enabled, but VOUT is greater than VIN.
The AOZ1376 offers programmable soft start and comprehensive protection
against short-circuit, thermal overload, reverse voltage and over
voltage. The over-voltage protection threshold is selectable by an
external resistor. The internal soft-start circuitry controls the inrush
current due to highly capacitive loads, and the slew rate can be
adjusted using an external capacitor. The device also features robust
ESD of +/-8kV on VIN and VOUT pins and +/-4kV on
all other pins.
Pricing and Availability
The AOZ1376 is immediately available in production quantities with a
lead-time of 12 weeks. The unit price of 1,000 pieces is $2.25.
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,
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’ portfolio of products
targets high-volume applications, including portable computers, flat
panel TVs, LED lighting, smart phones, battery packs, consumer and
industrial motor controls 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 that are 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/20180719005144/en/
Alpha and Omega Semiconductor Limited
Mina Galvan, 408-789-3233
mina.galvan@aosmd.com
Source: Alpha and Omega Semiconductor Limited