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AAT3682 - Li-Ion/Polymer Linear Battery Charger

General Description

The AAT3682 is a lithium-ion/polymer linear battery charger.

It is designed for compact portable applications with a single-cell battery.

Key Features

  • VIN Range: 4.7V to 6.0V.
  • Low Quiescent Current, Typically 0.5mA.
  • 1% Accurate Preset Voltage.
  • Up to 1A of Charging Current.
  • Integrated Pass Device.
  • Battery Temperature Monitoring.
  • Fast Trickle Charge Option.
  • Deep Discharge Cell Conditioning.
  • LED Charge Status Output or System Microcontroller Serial Interface.
  • Power-On Reset.
  • Lower Power Sleep Mode.
  • Status Outputs for LED or System Interfac.

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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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General Description The AAT3682 is a lithium-ion/polymer linear battery charger. It is designed for compact portable applications with a single-cell battery. The AAT3682 precisely regulates battery charge voltage and charge current, and offers an integrated pass device, minimizing the number of external components required. The AAT3682 charges the battery in three different phases: preconditioning, constant current, and constant voltage. In preconditioning mode, the charge current has two different levels and is controlled by one external pin. Battery charge temperature and charge state are carefully monitored for fault conditions. A battery charge stable monitor output pin is provided to indicate the battery charge status through a display LED or interface to a system controller.