The bq2461x is a highly integrated Li-ion or Li-polymer switched-mode battery charge
controller. The device offers a constant-frequency synchronous switching PWM controller with
high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter
current regulation, and charge status monitoring.
The bq2461x charges the battery in three phases: preconditioning, constant current, and
Charge is terminated when the current reaches a minimum user-selectable level. A
programmable charge timer provides a safety backup. The bq2461x automatically restarts the charge
cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current
sleep mode when the input voltage falls below the battery voltage.
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