Texas Instruments LM3658
The LM3658 is a single chip charger IC designed for handheld applications. It can safely charge and maintain a single cell Li-Ion/Polymer battery operating from an AC wall adapter or USB power source. With both power sources present, the AC power source has priority.APPLICATIONS
Check for Samples: LM3658FEATURES
1●2 Integrated Power FETs with Thermal Regulation
● Charges from Either an AC Wall Adapter or USB Power Source with Automatic Source Selection
● 50 mA to 1000 mA Charge Currents Using AC Wall Adapter
● Pin-Selectable USB Charge Currents of 100 mA or 500 mA
● LDO Mode with 1A of Source Current is Automatically Invoked When the Battery is Absent and the AC Wall Adapter is Connected
● Continuous Battery Temperature Monitoring
● Built-in Multiple Safety Timers
● Charge Status Indication
● Continuous Over-current and Temperature Protection
● Near-depleted Battery Pre-conditioning
● Sleep Mode with Ultra Low Quiescent Current
● On-board Kelvin-sensing Achieves ±0.35% Termination Accuracy
● Maintenance Mode with Automatic Recharge
● Thermally Enhanced 3 mm x 3 mm WSON Package
APPLICATIONS
● Smartphones● Digital Still Cameras
● PDAs
● Hard Drive and Flash-based MP3 Players
● USB-powered Devices
DESCRIPTION
Input power source selection of USB/AC is automatic.