BQ24315DSGR

BQ24315DSGR is a single-cell Li-ion charger front-end protection IC in a 2x2 mm WSON-8 (DSG) package, rated for inputs up to 30 V and charge currents up to 1.5 A. It trips input overvoltage protection at 5.85 V and battery overvoltage protection at 4.35 V, and adds a 5.5 V LDO mode so the protected system rail stays alive. Operating range is -40 C to +125 C. For charger designs, that combination absorbs adapter faults and hot-plug transients before they reach the cell or the charge IC, which cuts field failures and protects downstream power stages that were never designed for raw adapter voltage. Selection advice: choose this code when the design needs both input-side and battery-side overvoltage clamps in one small device; if the charger already integrates battery OVP, confirm the fixed 4.35 V battery threshold matches your cell specification before committing, and if only input protection is required a simpler front-end part may suffice. Parameters verified against Texas Instruments documentation.