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Texas Instruments TPS3820-33QPDBVRQ1 — Power Management (PMIC / Gate Driver)

TPS3820-33QPDBVRQ1 Automotive Voltage Monitor

MPNTPS3820-33QPDBVRQ1
Active

Texas Instruments TPS3820-33QPDBVRQ1, Automotive AEC-Q100 voltage monitor, 2.93V threshold, active-low push-pull output, 15ms minimum reset timeout, -40°C to 125°C, SOT-23-5 package.

$1.5700Ref. price · indicative, final on quote
Texas Instruments TPS3820-33QPDBVRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3820-33QPDBVRQ1 specifications
ParameterValue
TypeMonitor
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Voltage - threshold2.93V
Number of voltages monitored1
Operating temperature-40°C~125°C
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout15ms Minimum
CaseSC-74A, SOT-753

Product details

2.93V threshold for 3.3V rail supervision

The TPS3820-33QPDBVRQ1 is a single-channel voltage monitor from Texas Instruments, part of the TPS3820 family, designed to assert a reset signal when the monitored supply drops below 2.93V. This threshold is set for a nominal 3.3V rail, providing a brown-out detection window that catches supply dips before the downstream logic enters an undefined state. The active-low, push-pull output drives the reset line directly without needing an external pull-up resistor.

AEC-Q100 grade for under-hood deployment

The 15ms minimum reset timeout gives the power supply and oscillator time to stabilise before the processor boots — a margin that matters in cold-crank and load-dump transients.

SOT-23-5 footprint and supply chain

Housed in a 5-pin SOT-23-5 package (SC-74A, SOT-753), this part shares the same footprint as many other TI voltage supervisors, easing board-level substitution.

Frequently asked questions

What is the difference between TPS3820-33QPDBVRQ1 and TPS3820-33QDBVRQ1?

The suffix difference (QPDBVR vs QDBVR) typically indicates packaging or reel quantity variations within the same base device. Both share the same 2.93V threshold, active-low push-pull output, and 15ms reset timeout. Confirm the specific tape-and-reel quantity and reel diameter from the order code to match your pick-and-place setup.

What is the reset output type on this monitor?

The reset output is active-low with a push-pull (totem pole) stage. This means it drives the reset line high or low without requiring an external pull-up resistor, simplifying the connection to the MCU reset input.