DESCRIPTION
The LTC®4075/LTC4075X are standalone linear chargers that are capable of charging a single-cell Li-Ion battery from both wall adapter and USB inputs. The chargers can detect power at the inputs and automatically select the appropriate power source for charging.

FEATURES
■ Charges Single-Cell Li-Ion Batteries from Wall Adapter and USB Inputs
■ Automatic Input Power Detection and Selection
■ Charge Current Programmable up to 950mA from Wall Adapter Input
■ No External MOSFET, Sense Resistor or Blocking Diode Needed
■ Thermal Regulation Maximizes Charging Rate Without Risk of Overheating*
■ Preset Charge Voltage with ±0.6% Accuracy
■ Programmable Charge Current Termination
■ 18µA USB Suspend Current in Shutdown
■ Independent “Power Present” Status Outputs
■ Charge Status Output
■ Automatic Recharge
■ Available Without Trickle Charge (LTC4075X)
■ Available in a Thermally Enhanced, Low Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package

APPLICATIONS
■ Cellular Telephones
■ Handheld Computers
■ Portable MP3 Players
■ Digital Cameras