Device function and cell-count flexibility
The BQ296111DSGT is a Li-Ion battery protection IC that monitors 2 to 4 series cells for overvoltage faults. The 2-4 cell range means a single BOM line covers 7.4 V to 14.8 V nominal packs — the same part works across a 2S, 3S, or 4S stack without a hardware change. Protection is limited to overvoltage detection — there is no undervoltage, overcurrent, or short-circuit block on this die. The system-level protection scheme needs a separate monitor or fuel gauge for the other fault axes.
Package and thermal envelope
The -40°C to 110°C operating range covers automotive cabin and industrial ambient — the low end is cold-crank safe, the high end is the battery pack's internal temperature during fast charge. Cut Tape works for prototype or low-volume builds.
ROHS3 compliant, no exemptions that would block EU or California market entry.