GENERAL DESCRIPTION
The ACT3780 is a complete battery-charging and system power management solution for portable hand-held equipment using single-cell Lithium based batteries. The ACT3780 incorporates Active Semis proprietary ActivePath architecture which automatically selects the best available input supply for the system.

FEATURES
• ActivePathTM System Power Selection of Best Available Input Supply
• 50mΩ Battery Switch for Highest Efficiency
• Dynamic Control of Charging Current Allowing System to Draw Maximum Load from AC/USB Input
• ±0.5% Battery Charge Voltage Accuracy
• Up to 12V Input with Over Voltage Protection
• Thermal Regulation for Charge Control
• Charge Status Outputs for LED or System Interface
• Battery Voltage Level Indication
• Programmable Fast Charge Current
• Programmable Charging Timer
• Low Reverse Leakage Current
• Short-Circuit and Thermal Protection
• Preconditioning for Deeply Depleted Battery
• Low Quiescent Current Standby Mode
• Space-Saving, Thermally-Enhanced
  TQFN44-20 Packages

APPLICATIONS
• Personal Navigation Devices
• Smart Mobile Phones
• Blue-Tooth Devices
• Portable Media Players
• Portable Devices