The bq24070 and bq24071 are highly integrated Li-ion linear charger and system
power-path management devices targeted at space-limited portable applications. The bq2407x devices
offer DC supply (AC adapter) power-path management with autonomous power-source selection, power
FETs and current sensors, high-accuracy current and voltage regulation, charge status, and charge
termination, in a single monolithic device.
The bq2407x devices power the system while independently charging the battery. This
feature reduces the charge and discharge cycles on the battery, allows for proper charge
termination, and allows the system to run with an absent or defective battery pack. This feature
also allows for the system to instantaneously turn on from an external power source in the case of
a deeply discharged battery pack. The IC design is focused on supplying continuous power to the
system when available from the AC adapter or battery sources.
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