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RT9471 - 3A Single Cell Switching Battery Charger

Datasheet Summary

Description

The RT9471/D is a highly-integrated 3A switch mode battery charge management, and system power path management device for single cell Li-Ion and LiPolymer batteries.

Features

  • High Efficiency, 1.5MHz, Synchronous SwitchMode Buck Charger.
  • 92% Charge Efficiency at 2A with 5V Input and 3.8V Battery.
  • Support 3.9V to 13.5V Input Voltage Range.
  • Average Input Current Regulation (AICR).
  • Minimum Input Voltage Regulation (MIVR).
  • Minimum Input Voltage Regulation Track (MIVR Track).
  • Charge Current Regulation (CCR).
  • Charge Voltage Regulation (CVR).
  • Charge Voltage Regulation Track (CVR Track).
  • Junction Thermal Regulation (JTR).

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Datasheet preview – RT9471

Datasheet Details

Part number RT9471
Manufacturer Richtek
File Size 2.36 MB
Description 3A Single Cell Switching Battery Charger
Datasheet download datasheet RT9471 Datasheet
Additional preview pages of the RT9471 datasheet.

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Full PDF Text Transcription

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RT9471/D 3A Single Cell Switching Battery Charger 1 General Description The RT9471/D is a highly-integrated 3A switch mode battery charge management, and system power path management device for single cell Li-Ion and LiPolymer batteries. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time, and extends battery life during the discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution. The recommended junction temperature range is −40C to 125C, and the ambient temperature range is −40C to 85C.
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