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LP28057 - 1.2A Single-chip Li-ion Charge

General Description

The LP28057 is a complete constant-current/ constant- voltage linear charger for single cell lithium-ion batteries.

Its ESOP-8 package and low external component count make the LP28057 ideally suited for portable applications.

Key Features

  • include charge current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage. Order Information LP28057.
  • F: Pb-Free Package Type SP: ESOP-8 Features.
  • Protection of Reverse Connection of Battery.
  • Programmable Charge Current Up to 1200mA.
  • No MOSFET, Sense Resistor or Blocking Diode Required.
  • Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximi.

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Datasheet Details

Part number LP28057
Manufacturer Lowpowersemi
File Size 477.01 KB
Description 1.2A Single-chip Li-ion Charge
Datasheet download datasheet LP28057 Datasheet

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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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Preliminary Datasheet LP28057 1.2A Single-chip Li-ion Charge with Protection of Reverse Connection of Battery General Description The LP28057 is a complete constant-current/ constant- voltage linear charger for single cell lithium-ion batteries. Its ESOP-8 package and low external component count make the LP28057 ideally suited for portable applications. 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 4.2V, and the charge current can be ISET rammed externally with a single resistor.