General  Description

The APL3200 charges a single-cell Li+ battery from both USB and AC adapter sources. It also includes battery to-input power switchover, therefore, the system can be powered directly from the power source rather than from the battery. In its simplest application, the APL3200 doesn’ t need external MOSFET or diodes and accepts input voltages up to 6.5V; however, DC input over-voltage protection up to 18V can be added with a single SOT PFET.

Features

• Charge  from USB  or  AC  Adapter

• Accurate  BA TT  Regulation  V oltage

• Programmable  DC  Charging Current

• Selectable USB Charging Current (Either 100mA or 500mA)

• Thermal  Regulation  for Simplified  Board  Design

• Input  Protection  Up  to  18V

• Soft-Start

• External  Thermistor Monitoring

• Charge  Shutdown  Control

• Charge Status Outputs

• DC  and  USB Power-OK  Indicators

• Small, High Power  QF N5x5-16 and  TQF N4x4-16 Packages

• Lead Free and Green Devices Available (RoHS Compliant)