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LTC4075HVX - High Voltage Dual Input Li-Ion/Polymer Battery Charger

General Description

The LTC®4075HVX is a standalone linear charger that is capable of charging a single-cell Li-Ion/Polymer battery from both wall adapter and USB inputs.

The charger can detect power at the inputs and automatically select the appropriate power source for charging.

Key Features

  • 22V Maximum Voltage for Wall Adapter and USB Inputs.
  • Charge 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.
  • Overvoltage Lockout for Wall Adapter and USB Inputs.
  • No External MOSFET, Sense Resistor or Blocking Diode Needed.
  • Thermal Regulation Maximizes Charge Rate Without Risk of Overheating.
  • Preset Charge Voltage with ±0.35% A.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FEATURES ■ 22V Maximum Voltage for Wall Adapter and USB Inputs ■ Charge 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 ■ Overvoltage Lockout for Wall Adapter and USB Inputs ■ No External MOSFET, Sense Resistor or Blocking Diode Needed ■ Thermal Regulation Maximizes Charge Rate Without Risk of Overheating* ■ Preset Charge Voltage with ±0.35% Accuracy ■ Programmable Charge Current Termination ■ 40μA USB Suspend Current in Shutdown ■ Independent “Power Present” Status Outputs ■ Charge Status Output ■ Automatic Recharge ■ Available in a Thermally Enhanced, Low Profile (0.