BQ24257 Datasheet - Texas Instruments

BQ24257 Li-Ion/LiFePO4 Battery Charger

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. The single cell charger has a single input that operates from either a USB port or AC wall adapter for a versat.

BQ24257 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

BQ24257-etcTI.pdf