DESCRIPTION

The LX2202 Linear Battery Charger is a multi-state (2 stage) Li-Ion battery charger (Constant current / Constant voltage) that is designed to minimize battery charge time (even from current limited sources such as USB) and provide a simplified interface to control battery discharge.

KEY FEATURES

◾ Up to 2A Charge Current

◾ Internal Pass Element Can Function as a Reverse Direction Load Switch

◾ USB Compliant Charging States using optional USB input

◾ Isolated Battery Topology

◾ Low RdsON in Discharge Mode

◾ Full Capacity Charging

◾ True Charge Indicator

◾ Wall Supply Regulator Tolerance 5V + 10

◾ Topping Charge with Voltage Monitoring Mode

◾ Improved charge/discharge mode detection circuitry

◾ Small, High Power 20-lead MLP package

◾ Selectable Li-Ion Battery for 4.1V or 4.2V Applications

APPLICATIONS

◾ Batteries up to 4AH Ratings (C/2)

◾ Cell Phones

◾ PDAs

◾ Charging Cradles

◾ Digital Cameras

◾ Low Cost Single Li-Ion Cell Chargers