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Texas Instruments TPS3897ADRYT — Power Management (PMIC / Gate Driver)

TPS3897ADRYT Simple Reset/Power-On Reset, Active High

MPNTPS3897ADRYT
Active

Texas Instruments TPS3897ADRYT, Simple Reset/Power-On Reset, Active High, Open Drain/Open Collector Output, Adjustable/Selectable Reset Timeout, Adjustable/Selectable Voltage Threshold, -40°C~125°C(TJ), 6-UFDFN, 6-SON (1.45x1), Surface Mount.

$1.7200Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3897ADRYT specifications
ParameterValue
TypeSimple Reset/Power-On Reset
MountingSurface Mount
Voltage - thresholdAdjustable/Selectable
Number of voltages monitored1
Operating temperature-40°C~125°C(TJ)
ResetActive High
OutputOpen Drain or Open Collector
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeoutAdjustable/Selectable
Case6-UFDFN

Product details

Voltage supervisor with adjustable trip and timeout

The open-drain or open-collector output lets the designer wire-OR the reset line with other supervisors or pull it to a different logic voltage.

Adjustable threshold and timeout — what it buys you

Both the reset threshold voltage and the reset timeout period are adjustable/selectable via external components, not fixed at the factory. This means one BOM line covers multiple rail voltages — set the trip for 3.3 V on one build, 5.0 V on the next — without changing the IC. The timeout is set with a capacitor on the CT pin, giving the designer control over how long the reset stays asserted after the rail recovers.

Temperature range and package for tight spots

The 6-pin SON package (1.45 mm x 1 mm body) saves board area but demands a well-designed solder stencil and a thermal via under the exposed pad to keep the junction within limits at high ambient.

For a BOM that needs a voltage supervisor for the next several years, this part does not force a last-time-buy decision today.

Frequently asked questions

What is the adjustable reset threshold range for TPS3897ADRYT?

The reset threshold is adjustable/selectable via external resistor dividers, so the range is set by the designer rather than a fixed datasheet value. The part monitors a single voltage rail and the threshold is programmed with two resistors from the SENSE pin to the rail and ground.