Skip to main content
Texas Instruments TPS3840PL31DBVRQ1 — Power Management (PMIC / Gate Driver)

TI TPS3840PL31DBVRQ1 Simple Reset/Power-On Reset

MPNTPS3840PL31DBVRQ1
Active

Texas Instruments Automotive, AEC-Q100 Simple Reset/Power-On Reset, TPS3840PL31DBVRQ1, 3.1V threshold, active-low push-pull output, 619ms timeout, SOT-23-5.

$1.4300Ref. price · indicative, final on quote
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3840PL31DBVRQ1 specifications
ParameterValue
TypeSimple Reset/Power-On Reset
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Voltage - threshold3.1V
Number of voltages monitored1
Operating temperature-40°C~125°C(TJ)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout619ms Typical
CaseSC-74A, SOT-753

Product details

3.1V threshold supervisor with 619ms reset timeout

The TPS3840PL31DBVRQ1: The push-pull output drives the reset line directly without an external pull-up resistor, saving one component per supervisor channel. This is the standard interface for most modern MCU reset inputs, which expect a clean logic-low pulse during power-up or brownout.

Automotive temperature range and AEC-Q100 qualification

AEC-Q100 Grade 1 qualification means the part has passed the reliability stress tests (high-temperature operating life, temperature cycling, ESD) required for production automotive ECUs. The SOT-23-5 package (SC-74A) is a compact 5-pin surface-mount footprint, 2.9 mm × 1.6 mm body. It fits into space-constrained designs like engine control modules, transmission controllers, or body electronics where board area is tight.

Frequently asked questions

What is the reset timeout of TPS3840PL31DBVRQ1?

The reset timeout is 619ms typical. After the monitored voltage rises above the 3.1V threshold, the reset output stays low for this period before releasing, giving the system time to power up cleanly.

Is TPS3840PL31DBVRQ1 suitable for automotive designs?

Yes.