PDF datasheet titled bq25a, 1.73 MB. The name is brief and does not identify the exact part, though the bq prefix is used by Texas Instruments for battery management and charger ICs. A datasheet like this gives pinout, package marking, typical application circuit, electrical limits and register details. Repair technicians use it to check expected voltages on each pin, identify the chip by marking and understand why charging fails. Confirm the exact part number on the IC matches the document.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @ic_mosfet_pdf_datasheets. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.