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DS2776

Maxim Integrated Products
Part Number DS2776
Manufacturer Maxim Integrated Products
Description 2-Cell Stand-Alone Li+ Fuel-Gauge
Published Jul 19, 2010
Detailed Description 19-4688; Rev 3; 5/10 www.DataSheet4U.com 2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with Protector and Optional SHA-1 Auth...
Datasheet PDF File DS2776 PDF File

DS2776
DS2776

Overview
19-4688; Rev 3; 5/10 www.
DataSheet4U.
com 2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with Protector and Optional SHA-1 Authentication General Description The DS2775–DS2778 report available capacity for rechargeable lithium-ion (Li+) and Li+ polymer (Li-Poly) batteries in mAh and as a percentage of full.
Safe operation is ensured by the integrated Li+ protector.
The DS2776/DS2778 support SHA-1-based challengeresponse authentication in addition to all other DS2775/ DS2777 features.
Precision measurements of voltage, temperature, and current, along with a cell characteristics table and application parameters, are used for capacity estimation calculations.
The capacity registers report a conservative estimate of the amount of charge that can be removed given the current temperature, discharge rate, stored charge, and application parameters.
The DS2775–DS2778 operate from +4.
0V to +9.
2V for direct integration into battery packs with two Li+ or LiPoly cells.
In addition to nonvolatile storage f...


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