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BQ24257 - Li-Ion/LiFePO4 Battery Charger

Datasheet Summary

Description

The bq2425x is a highly integrated single-cell Li-Ion battery charger with integrated current sense resistor targeted for space-limited, portable applications with high capacity batteries.

Features

  • High-efficiency Switch-mode Charger with Integrated Current Sense Resistor.
  • BC1.2 D+, D.
  • Detection with Dead Battery Provision (DBP) Pin-to-Sync with External USBPHI.
  • USB Charging Compliant.
  • Selectable Input Current Limit of 100 mA, 150 mA, 500 mA, 900 mA. 1.5 A, and 2 A.
  • Watchdog Timer with Disable Bit.
  • Integrated 4.9-V, 50-mA LDO.
  • Complete System Level Protection.
  • Input UVLO, Input Overvoltage Protection (OVP), Ba.

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Datasheet preview – BQ24257

Datasheet Details

Part number BQ24257
Manufacturer Texas Instruments
File Size 3.85 MB
Description Li-Ion/LiFePO4 Battery Charger
Datasheet download datasheet BQ24257 Datasheet
Additional preview pages of the BQ24257 datasheet.

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Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq24257: Not Recommended For New Designs bq24257 bq24258 SLUSBG0C – FEBRUARY 2013 – REVISED OCTOBER 2014 bq24257, bq24258 2-A Single Input I2C, Standalone Switch-Mode Li-Ion/LiFePO4 Battery Charger with Integrated Current-Sense Resistor 1 Features • High-efficiency Switch-mode Charger with Integrated Current Sense Resistor • BC1.2 D+, D– Detection with Dead Battery Provision (DBP) Pin-to-Sync with External USBPHI • USB Charging Compliant • Selectable Input Current Limit of 100 mA, 150 mA, 500 mA, 900 mA. 1.5 A, and 2 A • Watchdog Timer with Disable Bit • Integrated 4.
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