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LP3947 - Single Cell Li-Ion Battery Charger

General Description

The LP3947 is a complete charge management system that safely charges and maintains a Li-Ion battery from either USB power source or AC adaptor.

In USB mode, the LP3947 supports charging in low power or high power mode.

Alternatively, the LP3947 can take charge from AC adaptor.

Key Features

  • 1.
  • 23 Supports USB Charging Scheme.
  • Integrated Pass Transistor.
  • Near-Depleted Battery Preconditioning.
  • Monitors Battery Temperature.
  • Built-In 5.6 Hour Timer.
  • Under Voltage and Over Voltage Lockout.
  • Charge Status Indicators.
  • Charge Current Monitor Analog Output.
  • LDO Mode Operation can source 1 Amp.
  • Continuous Over Current/Temperature Protection.

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📁 Similar Datasheet

Part Number Description Manufacturer
LP3947 USB/AC Adaptor Single Cell Li-Ion Battery Charger National Semiconductor

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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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LP3947 www.ti.com SNVS298B – NOVEMBER 2004 – REVISED APRIL 2013 LP3947 USB/AC Adaptor, Single Cell Li-Ion Battery Charger IC Check for Samples: LP3947 FEATURES 1 •23 Supports USB Charging Scheme • Integrated Pass Transistor • Near-Depleted Battery Preconditioning • Monitors Battery Temperature • Built-In 5.6 Hour Timer • Under Voltage and Over Voltage Lockout • Charge Status Indicators • Charge Current Monitor Analog Output • LDO Mode Operation can source 1 Amp • Continuous Over Current/Temperature Protection APPLICATIONS • Cellular Phones • PDAs • Digital Cameras • USB Powered Devices • Programmable Current Sources KEY SPECIFICATIONS • 1% Charger Voltage Accuracy Over 0°C ≤ TJ ≤ 85°C • 4.