The bq29312A is a 2-， 3-， or 4-cell lithium-ion battery pack protection analog front end （AFE） IC that incorporates a 3.3-V， 25-mA low-dropout regulator to Battery Information

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TWOCELL THREECELL AND FOURCELL LITHIUMION OR LITHIUMPOLYMER BATTERY PROTECTION AFE SLUS629AJANUARY 2005REVISED AUGUST 2005 bq29312A FEATURES Can Directly Interface With the bq2084 Gas 2 3 or 4Cell Series Protection Control Gauges Provides Individual Cell Voltages and Battery Voltage to Battery Management Host Integrated Cell Balancing Drive I2C Compatible User Interface Allows Access to Battery Information Programmable Threshold and Delay for Overload and Short Circuit During Charge and Di......