? Small 3.5-mm × 4.5-mm VQFN Package ion linear charger and system power-path ? Designed for Single-Cell Li-Ion- or Li-Polymer- management devices targeted at space-limited Based Portable Applications portable applications. The bq2407x devices offer DC ? Integrated Dynamic Power-Path Management supply (AC adapter) power-path management with (DPPM) Feature Allowing the AC Adapter to autonomous power-source selection, power FETs Simultaneously Power the System and Charge the and current sensors, high-accuracy current and Battery voltage regulation, charge status, and charge termination, in a single monolithic device. ? Power Supplement Mode Allows Battery to Supplement the AC Input Current The bq2407x devices power the system while independently charging the battery. This feature ? Autonomous Power Source Selection (AC Adapter reduces the charge and discharge cycles on the or BAT) battery, allows for proper charge termination, and ? Supports Up to 2 A Total Current allows the system to run with an absent or defective ? Thermal Regulation for Charge Control battery pack. This feature also allows for the system to instantaneously turn on from an external power ? Charge Status Outputs for LED or System source in the case of a deeply discharged battery Interface Indicates Charge and Fault Conditions pack. The IC design is focused on supplying ? Reverse Current, Short-Circuit, and Thermal continuous power to the system when available from Protection