ACT3704

ACT3704 Rev2, 26-Jul-07 12V Linear-Mode Battery Charger for Li+/Li-polymer Cells FEATURES Internal High Voltage MOSFET Up to 12V Input Voltage ±0.5% Output Voltage Accuracy Charge Current Thermal Foldback Programmable Termination Voltage Programmable Fast Charge Current Programmable Charging Timer No Blocking Diode Required Low Reverse Leakage Preconditioning for Deeply Depleted Battery Low Quiescent Current Standby Mode Space-Saving, Thermally-Enhanced SOP8/EP, TDFN33-8 GENERAL DESCRIPTION The ACT3704 is a complete linear charging solution for single cell Lithium Ion and Lithium Polymer batteries. It incorporates an internal 12V power MOSFET for Constant-Current, Constant-Voltage control (CC/CV). The battery regulation voltage accuracy is ± 0.5% and can be set to either 4.1V or 4.2V. The charge current is programmed with an external resistor to a maximum of 1A to minimize total charge time. The reverse leakage current from the battery is less than 1µA if the input adaptor is disconnected or if there is a reverse battery connection. The ACT3704 is available in thermally-enhanced SOP-8/EP, and TDFN33-8 packages to accommodate high charge current operation and minimize total charging time. APPLICATIONS Mobile Phone Wireless Headsets Portable Media Players Cradle Chargers Portable Devices www.DataSheet4U.com TYPICAL APPLICATION CIRCUIT Innovative Products. Active Solutions. -1- www.active-semi.com Copyright © 2007 Active-Semi, Inc. ACT3...