bq2054 Datasheet - UNITRODE

bq2054 Lithium Ion Fast-Charge

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 flexibil.

bq2054 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

bq2054-UNITRODE.pdf