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LP3947 - USB/AC Adaptor 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

  • n Supports USB Charging Scheme n Integrated Pass Transistor Typical.

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Full PDF Text Transcription (Reference)

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November 2004 www.DataSheet4U.com LP3947 USB/AC Adaptor, Single Cell Li-Ion Battery Charger IC LP3947 USB/AC Adaptor, Single Cell Li-Ion Battery Charger IC 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. In both USB and AC adaptor modes, charge current, battery regulation voltage, and End of Charge (EOC) point can be selected via I2C interface. The LP3947 can also operate on default values that are pre-programmed in the factory.