8 A single-cell charger with I²C control
The Texas Instruments BQ25970YFFT is a single-cell, multi-chemistry battery charger IC that delivers up to 8 A of charge current from a 12 V supply maximum. It communicates over an I²C interface, allowing the host to set charge parameters and read fault status. The part integrates over-current and over-voltage protection, reducing external component count in the charging path.
Charge current and termination voltage
The 8 A charge current ceiling targets fast charging of a single-cell Li-ion or Li-polymer battery. The maximum battery pack voltage is 4.65 V — slightly above the standard 4.2 V termination, so confirm compatibility with your cell's charge-termination spec. The I²C interface lets the host adjust the charge current dynamically, which is useful for thermal management in tight enclosures.
Package and thermal considerations for 8 A
The BQ25970YFFT comes in a 56-DSBGA package measuring 3.33x2.93 mm. Surface-mount assembly requires standard BGA reflow profiles; the DSBGA is a wafer-level package with no underfill needed for most portable applications.
Lifecycle and sourcing
No official second-source or pin-compatible alternate is listed on the record.