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Texas Instruments BQ24381DSGT — Power Management (PMIC / Gate Driver)

BQ24381DSGT Battery Protection IC – TI, 8-WSON, Active

MPNBQ24381DSGT
Active

Texas Instruments BQ24381DSGT, Lithium-Ion battery protection IC, 8-WFDFN Exposed Pad (8-WSON 2x2 mm), over-current, over-temperature, over/under-voltage, short-circuit fault protection, -40°C to 125°C junction temperature range.

$0.9700Ref. price · indicative, final on quote
Texas Instruments BQ24381DSGT datasheet (PDF)
Packaging8-WFDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24381DSGT specifications
ParameterValue
MountingSurface Mount
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionBattery Protection
Case8-WFDFN Exposed Pad
Fault protectionOver Current, Over Temperature, Over/Under Voltage, Short Circuit
Battery chemistryLithium Ion

Product details

What this battery protection IC covers

The BQ24381DSGT is a single-chip Li-Ion battery protection IC from Texas Instruments, integrating over-current, over-temperature, over/under-voltage, and short-circuit detection into a single 8-WSON package.

The 8-WSON (2x2 mm) exposed-pad package requires the PCB layout engineer to connect the thermal pad to a ground-plane copper area for adequate heat spreading. The 8-WFDFN case code means the pad is on the bottom; a via array under the pad helps pull heat into the inner layers.

Sourcing is direct through TI-authorized channels — we can quote against your BOM quantity and confirm current lead time at quote time.

Frequently asked questions

What is the BQ24381DSGT used for?

It is a dedicated Li-Ion battery protection IC. Typical applications include single-cell Li-Ion packs in portable devices, power tools, medical monitors, and industrial instrumentation where the battery must be protected against over-current, over/under-voltage, short-circuit, and over-temperature conditions.

Is the BQ79612PAPRQ1 a direct functional replacement for the BQ24381DSGT?

No. The BQ79612PAPRQ1 is an automotive-grade battery monitor with SPI/UART interface, not a protection IC. The BQ24381DSGT is a standalone protection device with no digital interface. They serve different roles: the BQ79612 monitors cell voltage and reports data; the BQ24381 protects against fault conditions autonomously.