component

TPAX811RS4

Public Made by Adom

by adom

TECH PUBLIC Supervisor And Reset ICs, SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tpax811rs4factory-2.0.0extractor-text
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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tpax811rs4-etched.step tpax811rs4: factory component page (tier=lcsc) · Ray 17d ago
tpax811rs4-hero.glb tpax811rs4: hero GLB from the etched model (keeps the MPN mark) · Ray 17d ago
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TPAX811RS4

TECH PUBLIC · Supervisor And Reset ICs · SOT-143

TPAX811RS4 from TECH PUBLIC, in a SOT-143. 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 GND power_in Ground.
2 RESET output Active-low push-pull reset output (TPAX811): goes low when Vcc falls below the reset threshold and stays low for at least 140 ms after Vcc rises above the threshold.
3 MR input Active-low manual reset input with internal 20kΩ pull-up; reset is asserted while MR is low and held for 140 ms after MR returns high, can be left floating, driven by TTL/CMOS logic or shorted to ground by a switch.
4 VCC power_in Positive supply input, both the operating supply of the device and the monitored voltage; recommended 1.0 to 5.5 V, absolute maximum -0.3 to 6 V.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-143
Category Power Management (PMIC)
Pins 4

CAD (KiCad official)

  • Symbol: TPAX811RS4
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143 (KiCad packages3D, STEP)
  • 3D model files: tpax811rs4-etched.step / tpax811rs4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpax811rs4.step / tpax811rs4.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (7 pp, sha256 c9922a64eb36b228, retrieved 2026-10-18, 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-sonnet-5-5 (vision), consensus claude-opus-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