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Texas Instruments TPS3420DDRYR — Power Management (PMIC / Gate Driver)

Texas Instruments TPS3420DDRYR Reset Timer, Active Low

MPNTPS3420DDRYR
Active

Texas Instruments TPS3420DDRYR Reset Timer, 2-Channel Voltage Supervisor, Active Low Open Drain Output, Adjustable Threshold, -40°C to 125°C, 6-UFDFN / 6-SON Package.

$1.6000Ref. price · indicative, final on quote
Texas Instruments TPS3420DDRYR datasheet (PDF)
Packaging6-UFDFN
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3420DDRYR specifications
ParameterValue
TypeReset Timer
MountingSurface Mount
Voltage - thresholdAdjustable/Selectable
Number of voltages monitored2
Operating temperature-40°C~125°C(TJ)
ResetActive Low
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
Case6-UFDFN

Product details

The TPS3420DDRYR is a 2-channel reset timer from Texas Instruments, monitoring two supply voltages with an active-low, open-drain output. The voltage threshold is adjustable or selectable, giving the designer flexibility to set the trip point per rail. The small SON package demands careful solder-paste stencil design to avoid bridging on the centre pad.

Lifecycle and compliance

This is a current-design part, suitable for new BOMs without an immediate migration risk. Fully RoHS3 compliant, with no exemptions that would complicate EU or UKCA market entry. The tape-and-reel packaging (offered in both TR and CT options) is standard for automated pick-and-place assembly.

Frequently asked questions

What is the closest functional second-source for TPS3420DDRYR — TL7702BID?

The TL7702BID is a different device: it offers both active-high and active-low reset outputs, has a 270 ns typical propagation delay (not a reset timer), and is rated only to 85°C ambient. The TPS3420DDRYR monitors two voltages with an adjustable threshold and operates to 125°C junction. They are not pin-compatible or drop-in replacements without a board spin.

What compliance documentation does Texas Instruments provide for TPS3420DDRYR?

The TPS3420DDRYR is RoHS3 compliant per Texas Instruments' declaration. Standard TI datasheets and PCN notifications are the primary compliance documents.