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bq24721 - CHARGER AND SYSTEM POWER SELECTOR

General Description

The bq24721 is a high efficiency synchronous battery pack charger with high level of integration for portable applications.

This device implements a high performance analog front-end that interfaces to the system power management micro-controller through a simplified SBS-like SMBus interface.

Key Features

  • 1.
  • 2 High Efficiency NMOS-NMOS Synchronous Buck Converter With User-Selectable 300 kHz or 500 kHz frequency.
  • bq24721C Offers Softer Turn-On, Stronger Turn-Off.
  • SBS-Like(1) SMBus Interface for Control and Status Communications With Host.
  • Programmable Battery Voltage, Charge Current, and AC Adapter Current via SBS-Like SMBus Interface.
  • 0.4% Charge Voltage Regulation Accuracy.
  • 3% Charge Current Regulation Accuracy.
  • 3% Adapter Current Reg.

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Other Datasheets by Texas Instruments

Part Number Description
bq24721C CHARGER AND SYSTEM POWER SELECTOR
bq24725 2-4 Cell Li+ Battery SMBus Charge Controller
bq24725A 1-4 Cell Li+ Battery SMBus Charge Controller
bq24726 1-4 Cell Li+ Battery SMBus Charge Controller
bq24702 MULTICHEMISTRY BATTERY CHARGER CONTROLLER AND SYSTEM POWER SELECTOR

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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bq24721 bq24721C www.ti.com.................................................................................................................................................. SLUS683F – NOVEMBER 2005 – REVISED APRIL 2009 ADVANCED MULTI-CHEMISTRY AND MULTI-CELL SYNCHRONOUS SWITCH-MODE CHARGER AND SYSTEM POWER SELECTOR FEATURES 1 •2 High Efficiency NMOS-NMOS Synchronous Buck Converter With User-Selectable 300 kHz or 500 kHz frequency • bq24721C Offers Softer Turn-On, Stronger Turn-Off • SBS-Like(1) SMBus Interface for Control and Status Communications With Host • Programmable Battery Voltage, Charge Current, and AC Adapter Current via SBS-Like SMBus Interface • 0.