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bq2054
Lithium Ion Fast-Charge IC
Features
➤ Safe charge of Lithium Ion battery packs
➤ Voltage-regulated currentlimited charging
➤ Fast charge terminated by selectable minimum current; safety backup termination on maximum time
➤ Charging continuously qualified by temperature and voltage limits
➤ Pulse-width modulation control ideal for high-efficiency switchmode power conversion
➤ Direct LED control outputs display charge status and fault conditions
General Description
The bq2054 Lithium Ion FastCharge IC is designed to optimize charging of lithium ion (Li-Ion) chemistry batteries. A flexible pulse-width modulation regulator allows the bq2054 to control voltage and current during charging. The regulator frequency is set by an external capacitor for design flexibility.