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Texas Instruments TPS3823-50QDBVRQ1 — Power Management (PMIC / Gate Driver)

TPS3823-50QDBVRQ1 Simple Reset/Power-On Reset

MPNTPS3823-50QDBVRQ1
Active

Texas Instruments TPS3823-50QDBVRQ1, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 4.55V Threshold, 120ms Reset Timeout, -40°C to 125°C, SOT-23-5, AEC-Q100 Qualified.

$1.5600Ref. price · indicative, final on quote
Texas Instruments TPS3823-50QDBVRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3823-50QDBVRQ1 specifications
ParameterValue
TypeSimple Reset/Power-On Reset
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Voltage - threshold4.55V
Number of voltages monitored1
Operating temperature-40°C~125°C(TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout120ms Minimum
CaseSC-74A, SOT-753

Product details

4.55 V threshold — why this reset IC is built for 5 V rails

The TPS3823-50QDBVRQ1 is a Texas Instruments simple reset/power-on reset IC with a fixed 4.55 V threshold, designed to monitor a single 5 V supply rail. When the supply drops below that threshold, the active-low, push-pull output asserts reset and holds it for a minimum of 120 ms after the rail recovers.

SOT-23-5 package — footprint and layout notes

The TPS3823-50QDBVRQ1 is supplied in an SC-74A / SOT-753 package, commonly referred to as SOT-23-5. It is a surface-mount package with five leads on a 0.95 mm pitch. The small footprint suits space-constrained automotive PCBs, but the 0.95 mm pitch is forgiving enough for a two-layer board with proper decoupling.

Frequently asked questions

Does the TPS3823-50QDBVRQ1 work with 5V systems?

Yes. The 4.55 V threshold is specifically chosen for monitoring a 5 V supply rail. The reset asserts when the rail drops below 4.55 V and de-asserts after a 120 ms timeout once the rail recovers.

What is the difference between TPS3823 and TPS3823-50QDBVRQ1?

The TPS3823-50QDBVRQ1 is the automotive-grade (AEC-Q100 qualified) variant with a fixed 4.55 V threshold. The base TPS3823 family includes multiple threshold options and is typically commercial or industrial grade. The 'Q1' suffix and the '50' in the order code denote the automotive qualification and the 5 V rail threshold respectively.

Is the TPS3823-50QDBVRQ1 RoHS compliant?

Yes, the TPS3823-50QDBVRQ1 is RoHS compliant. Texas Instruments marks RoHS compliance on the product label and the part is supplied in lead-free plating compatible with standard reflow profiles.