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RT9470D - 3A Single Cell Switching Battery Charger

This page provides the datasheet information for the RT9470D, a member of the RT9470 3A Single Cell Switching Battery Charger family.

Datasheet Summary

Description

The RT9470/D is a highly-integrated 3A switch mode battery charge management and system power path management device for single cell Li-Ion and Li-Polymer batteries.

Features

  • High Efficiency, 1.5MHz, Synchronous Switch-Mode Buck Charger.
  • 92% Charge Efficiency at 2A from 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 – RT9470D

Datasheet Details

Part number RT9470D
Manufacturer Richtek
File Size 2.17 MB
Description 3A Single Cell Switching Battery Charger
Datasheet download datasheet RT9470D Datasheet
Additional preview pages of the RT9470D datasheet.

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Full PDF Text Transcription

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RT9470/D 3A Single Cell Switching Battery Charger 1 General Description The RT9470/D is a highly-integrated 3A switch mode battery charge management and system power path management device for single cell Li-Ion and Li-Polymer batteries. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during 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 150C, and the ambient temperature range is −40C to 85C. 2 Applications ⚫ Smart Phone/Tablet PC ⚫ Personal Information Appliances ⚫ Portable Device and Accessory 3 Ordering Information RT9470/D Package Type(1) WSC: WL-CSP-30B 2.1x2.
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