Smart Batteries and the Intersil X3100
Smart Batteries today are a requirement for the latest high performance portable laptop computers. These new machines must squeeze more performance into smaller packages while at the same time increasing battery life. To achieve these goals the designer must incorporate new methods of managing system power consumption and available battery capacity. As battery management techniques mature and become more common, application of smart batteries will extend beyond the PC into other portable devices, such as medical electronics, portable test equipment and other battery powered systems.
Portable Laptop PCs have migrated almost exclusively to Lithium-Ion (Li-ion) type batteries. These batteries provide increased capacity per weight and per volume, allowing a more portable product in a smaller form factor. However, Li-ion batteries have some characteristics that require additional circuitry to manage their operation. Extra electronic content is also required in smart battery designs to squeeze more capacity out of the Li-ion cells and to provide the user with better “fuel gauge” information.
This application note examines the Intersil X3100 Li-ion Battery Protection and Monitor IC and it is used in smart battery designs for the next generation of PCs, portable equipment and medical electronics.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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July 11, 2005 |
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AN127.0 |
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Application Note 127 |
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360 KB |
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