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LTC2941 Datasheet Battery Gas Gauge

Manufacturer: Linear Technology (now Analog Devices)

General Description

The LTC®2941 measures battery charge state in batterysupplied handheld PC and portable product applications.

Its operating range is perfectly suited for single-cell Li-Ion batteries.

A precision coulomb counter integrates current through a sense resistor between the battery’s positive terminal and the load or charger.

Key Features

  • n Indicates Accumulated Battery Charge and Discharge n High Accuracy Analog Integration n High Side Sense n 1% Charge Accuracy n ±50mV Sense Voltage Range n SMBus/I2C Interface n Configurable Alert Output/Charge Complete Input n 2.7V to 5.5V Operating Range n Quiescent Current Less Than 100µA n Small 6-Pin 2mm × 3mm DFN and 8-Lead MSOP Packages.