AnalogicTech's Half-Bridge MOSFET Driver Offers Lowest Impedance in Its Class for Multiphase DC-DC Converters
December 16 2008 - 7:55AM
PR Newswire (US)
Fast Switching Frequency, Small Package Minimize Costs SANTA CLARA,
Calif., Dec. 16 /PRNewswire/ -- Advanced Analogic Technologies,
Inc. (AnalogicTech(TM)) (NASDAQ:AATI), a developer of power
management integrated circuits, announced today a new high-voltage
addition to the company's growing MOSFET driver product family.
Supporting voltages up to 28V, the AAT4910 half-bridge, dual MOSFET
driver offers the industry's lowest impedance in its class for
multiphase DC-DC converters. (Logo:
http://www.newscom.com/cgi-bin/prnh/20050829/SFTU089LOGO) "Today's
multiphase DC-DC converter and motor control circuit designers need
low cost drivers capable of supporting higher voltages," said CJ
Zhang, product line vice president at AnalogicTech. "By operating
at up to 28V and combining a high switching frequency with a
compact SC70JW package, the AAT4910 meets that need. Moreover, with
an extremely low 3 omega drive resistance, this new device allows
them to drive larger MOSFETs faster in these applications." Dual
N-Channel MOSFET Switches The AAT4910 dual MOSFET driver takes a
logic input and drives both high and low-side N-channel MOSFETs.
The high side external MOSFET is turned on when the logic input is
driven high and the low-side MOSFET is turned on when the logic
input is driven low. Powered from a 5V rail, the device features
circuitry capable of driving the high-side N-channel MOSFET with up
to 28V power input. When driven low, the enable input turns off the
driver and reduces operating current to < 1 uA. A fast switching
frequency helps minimize the cost and size of external components.
Break-before-make shoot-through protection prohibits high-side and
low-side MOSFETs on the AAT4910 from conducting current at the same
time, and significantly reduces losses associated with the driver
at high frequencies. To protect the device from a short circuit or
defective MOSFET, the AAT4910 also features over-temperature
protection which turns off the device when die temperature exceeds
140 degrees C. Price and Availability The AAT4910 is qualified
across the -40 degrees C to +85 degrees C temperature range. It is
available in a 2 x 2.1-mm, 8-lead SC70JW package. It sells for
$0.48 in 1K quantities. About AnalogicTech Advanced Analogic
Technologies, Inc. (AnalogicTech) is a supplier of Total Power
Management(TM) semiconductor solutions for mobile consumer
electronic devices, such as wireless handsets, notebook and tablet
computers, smartphones, digital cameras, wireless LAN, and personal
media players. The company focuses its design and marketing efforts
on the application-specific power management needs of consumer,
communications, and computing applications in these rapidly
evolving devices. AnalogicTech also develops and licenses device,
process, package, and application-related technology. AnalogicTech
is headquartered in Santa Clara, California and Macau, S.A.R., with
offices in China (Beijing, Shanghai and Shenzhen), Hong Kong,
Taiwan, Japan, South Korea, Sweden, France and United Kingdom, as
well as a worldwide network of sales representatives and
distributors. The company is listed on the NASDAQ exchange under
the ticker symbol AATI. For more information, please visit the
AnalogicTech website: http://www.analogictech.com/. (AnalogicTech -
G) AnalogicTech and the AnalogicTech logo are trademarks of
Advanced Analogic Technologies Incorporated. All other brand and
product names appearing in this document are registered trademarks
or trademarks of their respective holders.
http://www.newscom.com/cgi-bin/prnh/20050829/SFTU089LOGO
http://photoarchive.ap.org/ DATASOURCE: Advanced Analogic
Technologies, Inc. CONTACT: Karolien Cools-Wittry of Advanced
Analogic Technologies, Inc., +1-408-737-4600, Karoliencw (at)
analogictech.com; or Matthew Quint of Quint Public Relations,
+1-650-599-9450, , for Advanced Analogic Technologies, Inc. Web
site: http://www.analogictech.com/
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