19-4688; Rev 3; 5/10
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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 conservati...