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TPS389050LQDSERQ1

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Texas Instruments Supervisor And Reset ICs, WSON-6(1.5x1.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TPS389050LQDSERQ1

Texas Instruments · Supervisor And Reset ICs · WSON-6(1.5x1.5)

TPS389050LQDSERQ1 from Texas Instruments, in a WSON-6(1.5x1.5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 SENSE input The monitored voltage input: RESET goes low when SENSE falls below the negative threshold VITN and goes high when it rises above the positive threshold VITP.
2 GND power_in Ground reference pin.
3 MR input Manual reset input; driving MR low causes RESET to go low (assert).
4 VDD power_in Supply voltage pin; good analog design practice is to place a 0.1-µF ceramic capacitor close to this pin.
5 CT passive User-adjustable delay pin; a ground-referenced capacitor sets the RESET deassert delay, tPD(r) (sec) = CCT (µF) × 1.07 + 25 µs (nom).
6 RESET output Open-drain output driven to a low-impedance state when MR is low or SENSE is below VITN; it stays low for the delay time after MR is high and SENSE is above VITP, and requires a pullup resistor of 10 kΩ to 1 MΩ.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WSON-6(1.5x1.5)
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: TPS389050LQDSERQ1
  • Footprint: Package_SON:WSON-6_1.5x1.5mm_P0.5mm
  • 3D model: WSON-6(1.5x1.5) (KiCad packages3D, STEP)
  • 3D model files: tps389050lqdserq1-etched.step / tps389050lqdserq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps389050lqdserq1.step / tps389050lqdserq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 df60d175a821bd24, retrieved 2026-10-11, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF