NCP1835B Datasheet | onsemi

Integrated Li- Ion Charger NCP1835B is an integrated linear charger specifically designed to charge 1- cell Li- Ion batteries with a constant current, constant voltage (CCCV) profile. Its low input voltage capability, adjustable charge current, ability to maintain regulation without a battery, and its onboard thermal foldback make it versatile enough to charge from a variety of wall adapters. The NCP1835B can charge from a standard wall adapter or from the USB port. It has been optimized to charge low capacity batteries such as those found in wireless headsets and flash memory- based MP3 players. Features - Integrated Voltage and Current Regulation - No External MOSFET, Sense Resistor or Blocking Diode Required - Charge Current Thermal Foldback - Integrated Pre- charge Current for Conditioning a Deeply Discharged Battery - Integrated End- of- Charge (EOC) Detection - 1% Voltage Regulation - 4.2 V Regulated Output Voltage - Regulation Maintained without a Battery Present - Programmable Full Charge Current - Open- Drain Charger Status and Fault Alert Flags - 2.8 V Output for AC Present Indication and Powering Charging Subsystems - Minimum Input Voltage of 2.4 V Allows Use of Current Limited Adapters - Automatically Recharging if Battery Voltage Drops after Charging Cycle is pleted - Low Profile 3x3 mm DFN Package - Pb- Free Package is Available Typical Applications - Wireless Headsets - MP3 Players - USB Appliances - Battery Operated Devices http://onsemi. MARKING DIAGRAM DFN 3x3 MN SUFFIX CASE...