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Texas Instruments TPS389050LQDSERQ1 — Power Management (PMIC / Gate Driver)

TPS389050LQDSERQ1 Simple Reset IC, 5V Threshold, AEC-Q100

MPNTPS389050LQDSERQ1
Active

Texas Instruments TPS389050LQDSERQ1, Automotive AEC-Q100 Simple Reset/Power-On Reset IC, 5V Threshold, Active Low Open Drain Output, -40°C to 125°C, 6-WSON (1.5x1.5 mm) Package.

$0.9000Ref. price · indicative, final on quote
Texas Instruments TPS389050LQDSERQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS389050LQDSERQ1 specifications
ParameterValue
TypeSimple Reset/Power-On Reset
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Voltage - threshold5V
Number of voltages monitored1
Operating temperature-40°C ~ 125°C (TJ)
ResetActive Low
OutputOpen Drain or Open Collector
PackageBulk
Case6-WFDFN

Product details

5V rail watchdog for automotive ECUs

It asserts an active-low, open-drain reset output when the monitored voltage drops below the 5V threshold, holding the system in reset until the supply recovers and stabilizes.

6-WSON footprint and surface-mount assembly

The 6-WSON package (1.5x1.5 mm body) is a compact, leadless surface-mount package with a thermal pad.

Listed as Active on the product status. The base product number TPS389050 covers a family of threshold-voltage variants, so supply continuity for the 5V version tracks the broader family's production commitment.

Frequently asked questions

Is TPS389050LQDSERQ1 AEC-Q100 qualified for automotive use?

Yes, the series is listed as Automotive, AEC-Q100. This qualification covers the stress-test suite required for production automotive electronic modules.

Does TPS389050LQDSERQ1 have a reset timeout period?

The evidence does not list a specific reset timeout period for this order code. The datasheet should be consulted for the exact timeout characteristic — it may be fixed or programmable depending on the variant.