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A4057 - LINEAR LI-ION BATTERY CHARGER

Datasheet Summary

Description

A4057 series is a double lithium battery charge management chip.

The chip includes a charge state detection, the charging process, temperature detection and so on.

The chip also integrates a high-precision reference voltage module in it.

Features

  • Double lithium battery charge management.
  • Only need a few external components.
  • Pre-charge, constant current charging , constant voltage charging mode.
  • Temperature detection.
  • Two charging status.
  • Available in SOP8 Package.

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Datasheet preview – A4057

Datasheet Details

Part number A4057
Manufacturer AiT Semiconductor
File Size 436.69 KB
Description LINEAR LI-ION BATTERY CHARGER
Datasheet download datasheet A4057 Datasheet
Additional preview pages of the A4057 datasheet.

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Full PDF Text Transcription

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AiT Semiconductor Inc. www.ait-ic.com A4057 BATTERY MANAGEMENT LINEAR LI-ION BATTERY CHARGER DESCRIPTION A4057 series is a double lithium battery charge management chip. The chip includes a charge state detection, the charging process, temperature detection and so on. The chip also integrates a high-precision reference voltage module in it. A4057 charge contains three modes: precharge, constant current charging, constant voltage charging. Constant current charging current is five times the pre-charge current; when the voltage is lower than 6.5V into the precharge mode; when the voltage is above 6.5V into the constant current charge mode, the charging current is five times as the precharge, the charging current is determined by an external resistor.
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