8 A single-cell charger with I²C control
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.