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Texas Instruments TPS25940AQRVCTQ1 — Power Management (PMIC / Gate Driver)

TPS25940AQRVCTQ1 Automotive eFuse, 2.7V-18V, 5.3A, AEC-Q100

MPNTPS25940AQRVCTQ1
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Texas Instruments TPS25940AQRVCTQ1, Automotive AEC-Q100 electronic fuse, 2.7V-18V input, 5.3A output, ±8% accuracy, -40°C to 125°C, 20-WQFN (4x3) surface mount.

$2.8100Ref. price · indicative, final on quote
Texas Instruments TPS25940AQRVCTQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS25940AQRVCTQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Voltage - input2.7V ~ 18V
Output current5.3A
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Accuracy±8%
FunctionElectronic Fuse
Case20-WFQFN Exposed Pad

Product details

AEC-Q100 eFuse for automotive power paths

The Texas Instruments TPS25940AQRVCTQ1 is an automotive-grade electronic fuse (eFuse) rated for 2.7V to 18V input and 5.3A continuous output, in a 20-WQFN (4x3) package. The AEC-Q100 qualification places it in under-hood and chassis-domain power distribution — think ECU input protection, ADAS sensor supply rails, and body controller load switches where a resettable overcurrent protector beats a one-shot fuse.

The ±8% accuracy on the current-limit threshold means the designer can set the trip point closer to the load's normal peak current without false trips at temperature. For a 5A nominal load, the trip band sits between 4.6A and 5.4A — tight enough to protect a 5.3A-rated downstream converter without oversizing the eFuse.

The supplier device package is 20-WQFN (4x3). Surface-mount only; no through-hole variant.

No last-time-buy notice, no end-of-life window.

Frequently asked questions

Is TPS25940AQRVCTQ1 overcurrent protected?

Yes, it is an electronic fuse whose primary function is overcurrent protection. The current-limit accuracy is ±8%, and the continuous output rating is 5.3A. The part actively limits the output current when the threshold is exceeded, rather than blowing open like a traditional fuse.