Document
XA4054
Standalone Linear Li-Lon Battery Charger with Thermal Regulation
Features
Programmable Charge Current Up to 800mA No MOSFET, Sense Resistor or Blocking Diode Required Complete Linear Charger for Single Cell Lithium-Ion Batteries Constant-Current/Constant-Voltage Operation with Thermal Regulation* to Maximize Charge Rate Without Risk of Overheating Charges Single Cell Li-Ion Batteries Directly from USB Port
Preset 4.2V Charge Voltage with 1%
Accuracy Automatic Recharge 65uA Supply Current in Shutdown 2.9V Trickle Charge Threshold Available in 5-Lead SOT-23 Package
Applications
Charger for Li-Ion Coin Cell Batteries Portable MP3 Players, Wireless Headsets Bluetooth Applications Multifunction Wristwatches
Description
The XA4054 is a complete constant-current/ constant voltage linear charger for single cell lithium-ion batteries. Its package and low e xternal component count make the XA4054 i deally suited for portable applications. Furthe rmore, the XA4054 is specifically desi.