Rechargeable lithium-ion (Li-Ion) and lithium polymer (Li-Poly) batteries deliver high energy density at low weight and volume, making them the ideal choice for portable handheld applications. Battery management devices ensure optimal energy utilization while protecting lithium batteries against potentially hazardous conditions related to current, voltage and temperature.
Atmel® addresses the challenges of rechargeable lithium battery management with solutions built on Atmel AVR® microcontrollers (MCUs) incorporating leading high-voltage technology. We optimize these devices using expertise gained through long-es-tablished cooperation with major battery manufacturers. The result is a full range of MCUs dedicated to Li-Ion and Li-Poly battery management solutions supporting from one to four cells in series.
Flexible PlatformBy providing both un-programmed battery management ICs and pre-programmed turnkey solutions, Atmel delivers a highly flexible platform. AVR battery management devices cover the entire range of battery management needs—including applications where you can use a fixed-function device off the shelf as well as applications that require some level of customization. For customers who prefer developing in-house battery management firmware, Atmel provides source code packages that implement the primary functions of a full battery management solution. You can use these packages as a foundation for your own development. If you prefer not to develop the firmware yourself, Atmel also provides fully customized versions of our pre-programmed turnkey battery management solutions.
Atmel battery management devices are built on the AVR MCU architecture, and firmware for these battery management ICs is developed on the same world-class development tools used to create general-purpose AVR MCUs. In addition, Atmel offers dedicated evaluation kits and reference designs for all AVR battery management solutions.
Accuracy and SafetyTo ensure industry-leading analog accuracy, Atmel manufactures AVR battery management devices using a proprietary high-voltage, mixed-signal CMOS process. Additionally, the built-in analog reference voltage is factory-calibrated to provide excellent stability over temperature. As a result, these devices deliver the highest accuracy over the full operating temperature range. Combined with the state-of-the-art Atmel fuel gauge algorithm, the high accuracy of AVR battery management devices ensures a very accurate (<1% error) state-of-charge report to the host system.
Together with a built-in battery protection engine, Atmel battery management solutions deliver a complete, highly accurate and safe single-chip battery management system.
Battery Pack
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2012 Atmel Corporation. All rights reserved. Rev.: 8482B_AVR Battery Mgmt_E_US-10/12 Atmel®, Atmel logo and combinations thereof, and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RE-LATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS AND PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and products descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life.



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