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LM3622 - Lithium-Ion Battery Charger Controller

Description

The LM3622 is a charge controller for Lithium-Ion batteries.

This monolithic integrated circuit accurately controls an external pass transistor for precision Lithium-Ion battery charging.

Features

  • 1.
  • 2 Versions for charging of 1 cell (4.1V or 4.2V) or 2 cells (8.2V or 8.4V).
  • Versions for coke or graphite anode.
  • Precision (±30mV/cell) end-of-charge control.
  • Wide input range: 4.5V-24V.
  • Low battery drain leakage: 200nA.
  • 15 mA available to drive low cost PNP.

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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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LM3622 www.ti.com SNVS043A – MAY 2004 – REVISED OCTOBER 2004 LM3622 Lithium-Ion Battery Charger Controller Check for Samples: LM3622 FEATURES 1 •2 Versions for charging of 1 cell (4.1V or 4.2V) or 2 cells (8.2V or 8.4V) • Versions for coke or graphite anode • Precision (±30mV/cell) end-of-charge control • Wide input range: 4.5V-24V • Low battery drain leakage: 200nA • 15 mA available to drive low cost PNP APPLICATIONS • Cellular phone cradle charger • PDA/Notebook cradle charger • Camcorder cradle charger DESCRIPTION The LM3622 is a charge controller for Lithium-Ion batteries. This monolithic integrated circuit accurately controls an external pass transistor for precision Lithium-Ion battery charging.
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