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LP4055 - 800mA Linear Li-Ion Battery Charger

General Description

The LP4055 is a complete constant-current/constant- voltage linear charger for single cell lithium-ion batteries.

Its SOT23-5 package and low external component count make the LP4055 ideally suited for portable applications.

Key Features

  • include charge current monitor, automatic recharge and a status pin to indicate charge termination. Order Information LP4055.
  • BAT Voltage Default: 4.2V 43: 4.35V F: Pb-Free Package Type B5: SOT23-5 QV:TDFN-6 Features.
  • Programmable Charge Current Up to 800mA.
  • No MOSFET, Sense Resistor or Blocking Diode Required.
  • Protection of Reverse Connection of Battery.
  • Constant-Current/Constant-Voltage Operation with Thermal Regulation to M.

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Datasheet Details

Part number LP4055
Manufacturer Lowpowersemi
File Size 523.92 KB
Description 800mA Linear Li-Ion Battery Charger
Datasheet download datasheet LP4055 Datasheet

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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Preliminary Datasheet LP4055 800mA Linear Li-Ion Battery Charger with Protection of Reverse Connection of Battery General Description The LP4055 is a complete constant-current/constant- voltage linear charger for single cell lithium-ion batteries. Its SOT23-5 package and low external component count make the LP4055 ideally suited for portable applications. Furthermore, the LP4055 is specifically designed to work within USB power specifications. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.