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Microchip Technology Expands Analog Power Management Family with New SOT-23, Fully-integrated Li-Ion/Li-Polymer Battery Charger.


CHANDLER, Ariz. -- Small, single-cell charger CHARGER, Scotch law. He in whose favor a decree suspended is pronounced; vet a decree may be suspended before a charge is given on it. Ersk. Pr. L. Scot. 4, 3, 7.  is offered in miniature, 2 mm x 3 mm, thermally enhanced DFN DFN Definition
DFN Deutsches Forschungsnetz
DFN Digital Freedom Network
DFN Deafness
DFN Day for Night (cinematography)
DFN Discrete Fracture Network (geology/geophysics) 
 package and enables highly accurate output-voltage regulation

Microchip Technology Microchip Technology (NASDAQ: MCHP) is a manufacturer of microcontroller, memory and analog semiconductors, founded in 1989 when  Inc. (NASDAQ NASDAQ
 in full National Association of Securities Dealers Automated Quotations

U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on
: MCHP MCHP Maryland Children's Health Program
MCHP Microchip Technologies (stock symbol)
MCHP Micro-sized Combined Heat and Power (American Honda Motor Co. & Climate Energy, LLC)
MCHP Maine Community Heritage Project
), a leading provider of microcontroller A single chip that contains the processor (the CPU), non-volatile memory for the program (ROM or flash), volatile memory for input and output (RAM), a clock and an I/O control unit.  and analog semiconductors, today announced the expansion of its analog power-management family with the MCP (1) See Microsoft certification.

(2) (MultiChip Package) A chip package that contains two or more chips. It is essentially a multichip module (MCM) that uses a laminated, printed-circuit-board-like substrate (MCM-L) rather than ceramic (MCM-C).
73831 battery charger -- a fully-integrated, single-cell, Li-Ion/Li-Polymer charge-management controller. Equipped with a pass transistor, current sense and reverse-discharge protection, the MCP73831 charger reduces the number of components needed for battery-charger designs. Its highly accurate, pre-set voltage regulation Voltage regulation

The change in voltage magnitude that occurs when the load (at a specified power factor) is reduced from the rated or nominal value to zero, with no intentional manual readjustment of any voltage control, expressed in percent of nominal
 (maximum accuracy 0.5 percent to 0.75 percent) results in more fully charged batteries and extended battery life. The device's SOT-23 5-pin and miniature 2 mm x 3 mm 8-pin, thermally enhanced DFN packages enable smaller, smarter charger designs for a wide variety of portable consumer devices such as wireless Bluetooth(R) headsets, MP3 players A digital music player that supports the MP3 format, which was the audio format that started a revolution in online music downloads and distribution. All portable music players, the iPod being the most popular, support MP3 along with one or more other audio formats.  and digital cameras.

Because the MCP73831 charge-management controller includes a pass transistor, current sense and reverse-discharge protection on a single chip, it reduces the number of system components needed for battery-charger designs, thereby lowering overall system costs. The integrated charger provides highly accurate output-voltage regulation, with a maximum accuracy of 0.5 percent to 0.75 percent, resulting in more effectively charged batteries with longer life. Its thermally efficient DFN package option allows high charging currents of up to 500 mA for faster charging. The controller also features on-chip thermal regulation that decreases charge current when temperatures become too hot, thus preventing damage to the integrated circuit integrated circuit (IC), electronic circuit built on a semiconductor substrate, usually one of single-crystal silicon. The circuit, often called a chip, is packaged in a hermetically sealed case or a nonhermetic plastic capsule, with leads extending from it for . Further, the MCP73831's charge current is user-programmable, enabling designers to customize charging currents for specific applications.

"The MCP73831 charge management controller offers the best combination of features, output-voltage regulation, and thermally-efficient packaging on the market for small, Li-Ion and Li-Polymer-powered applications," said Keith Pazul, marketing manager with Microchip's Analog and Interface Products Division. "This new charger supports market trends toward consumer devices that deliver higher performance and longer battery life in miniature packages. We are pleased to be a part of this trend with this latest addition to our analog power management family."

Another key feature of the MCP73831 charger is its simple status output pin that directly drives single or multi-color light-emitting diodes (LEDs). The charger also supports multiple regulation voltage outputs, making it an effective charging solution for many types of Li-Ion battery technologies. The MCP73831 is ideal for battery-powered consumer applications requiring small size and thermal regulation, such as wireless headsets, MP3 players, and digital cameras.

Microchip offers the MCP73831EV Evaluation Board for $45 to support the development of battery charger applications using the MCP73831 charger. The board will be available on Dec. 1 at http://buy.microchip.com/.

Pricing and Availability

The MCP73831 fully integrated, single-cell Li-Ion/Li-Polymer charger is offered in a 5-pin SOT-23 package for $0.70 each in 10K-unit quantities. The charger is also offered in the thermally enhanced, 2 mm x 3 mm, 8-pin DFN package for $0.77 each in 10K-unit quantities.

The MCP73831 is available today for sampling and volume production. For additional information, contact any Microchip sales representative or authorized worldwide distributor, or visit Microchip's Web site at www.microchip.com/MCP73831.

About Microchip Technology

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Ariz., Microchip offers outstanding technical support along with dependable delivery and quality. For more information, visit the Microchip Web site at www.microchip.com.

Note: The Microchip name and logo are registered trademarks of Microchip Technology Incorporated in the United States United States, officially United States of America, republic (2005 est. pop. 295,734,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third largest country in population and the fourth largest country in area.  and other countries. The Bluetooth word mark and logo are registered trademarks and are owned by the Bluetooth SIG Inc. All other trademarks mentioned herein are the property of their respective companies.

Note: Photo and block diagram A chart that contains squares and rectangles connected with arrows to depict hardware and software interconnections. For program flow charts, information system flow charts, circuit diagrams and communications networks, more elaborate graphical representations are usually used.  available through editorial contact

Keywords:

Semiconductor Applications: Wireless Communications wireless communications

System using radio-frequency, infrared, microwave, or other types of electromagnetic or acoustic waves in place of wires, cables, or fibre optics to transmit signals or data.
; Cordless/Mobile Terminals

Semiconductor Applications: Consumer; Audio; Portable Audio/MP3

Semiconductor Applications: Consumer; Cameras/Electronic Imaging; Still

Semiconductor Applications: Consumer; Cameras/Electronic Imaging; Movie (Camcorders)
COPYRIGHT 2005 Business Wire
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Copyright 2005, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Comment:Microchip Technology Expands Analog Power Management Family with New SOT-23, Fully-integrated Li-Ion/Li-Polymer Battery Charger.
Publication:Business Wire
Geographic Code:1USA
Date:Nov 15, 2005
Words:672
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