CN3303 PFM Step-up 3-cell USB Compatible Lithium Battery Charger IC - SOP8

This IC enables charging of 3 cell battery packs to be charged via a 5V Supply. If you want to charge a 3 cell battery from the USB port this chip can enable the same.CN3303 is a PFM mode step-up battery charge management IC with an operating voltage range between 2.7V to 6.5V. It is specially designed for 3-cell lithium battery charge management with fewer external components. CN3303 adopts constant current and quasi-constant voltage(Quasi-CVTM) mode to charge the battery. 

Features

• Input Voltage Range：2.7V to 6.5V
  
• Operating Current：280uA@VIN=5V
• Inductor Current Detection
• Switching Frequency up to 1MHz
• Quasi-CV mode to Compensate for the Voltage Loss on Battery Internal Resistance and Trace Resistance
•  Automatic Recharge
•  Output Power up to 35W
•  Protection for Low Battery Voltage and Short Battery
•  Automatic Adaptability to Input Supply with Limited Driving Capability
•  Chip Enable Input
•  Battery Overvoltage Protection
•  Status Indication
•  Operating Temperature ：－40℃ to 85℃
•   Available in SOP8 Package

Resources

Technical Datasheet