Active-Semi ACT3780
The ACT3780 is a complete battery-charging and system power management solution for portable hand-held equipment using single-cell Lithiumbased batteries. The ACT3780 incorporates ActiveSemi's proprietary ActivePath architecture which automatically selects the best available input supply for the system. The ActivePath architecture performs three important functions: First, the battery is charged while powering with the system, minimizing current draw from the battery while ensuring that sufficient current is available to power the system.| Part No. | ACT3780 |
|---|---|
| Datasheet | ACT3780 Download |
| Manufacturer |  Active-Semi |
| Description | Battery Charger |
| Buy | Stock & Price |
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
GENERAL DESCRIPTION
Second, if no input supply is available, system power is automatically switched to the battery. And finally, if the system load-requirement exceeds the capability of the input supply, ActivePath automatically supplements the input with the battery to satisfy the system's power requirements.
