PDF datasheet of 1.39 MB for the TI bq24780S notebook battery charge controller, saved here as a numbered duplicate. The bq24780S supports hybrid power boost mode and SMBus control, handling adapter detection, input current limiting and battery charging on many laptops. Pin descriptions and the application schematic help when diagnosing no-charge or no-power-on-adapter faults, letting you check ACDET, current sense resistors and gate drive to the power path MOSFETs. Verify the marking on the fitted chip first.
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