DESCRIPTION

The LX2208 is a single cell Lithium Ion or Lithium Polymer battery charger. The controller will charge a single cell Li-Ion battery from either a wall adapter or a USB power source. A low under-voltage lockout level increases usable charging range from a current limited power source. In addition, there is a linear die temperature thermal control loop, which limits the heat dissipation while still charging the battery.

KEY FEATURES

◾ Up to 2A Charging Current

◾ Integrated Power MOSFET

◾ Three Charge Levels for Adapter, and USB Hi and Low

◾ Charge Battery from a Current Limited Adapter

◾ 0.5 Battery Voltage Accuracy

◾ USB Current Compliance

◾ Battery Full Indicator

◾ CC/CV with Thermal Feedback

◾ Battery Temperature Monitor

◾ Precision Charge Termination

◾ Protection features:

o Unsafe Battery Temp Lockout

o Internal IC Temp Regulator

o USB Current Limiter

o Reverse Current Blocking

o Under Voltage Lockout

o False Termination Prevention under Low Supply Conditions

APPLICATIONS

◾ Navigation Devices

◾ Multi-Media Players

◾ Handheld Devices

◾ Digital Cameras