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Contents

README

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TPAX811TS4

TECH PUBLIC · Supervisor And Reset ICs · SOT-143

TPAX811TS4 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 that 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 Manual reset input, active low, with internal 20kΩ pull-up; reset stays asserted while MR is low and for 140 ms after MR returns high; leave floating if unused, drive with TTL/CMOS logic or short to ground with a switch.
4 VCC power_in Positive supply input, both the operating supply of the internal circuit and the monitored voltage; recommended range 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: TPAX811TS4
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143 (KiCad packages3D, STEP)
  • 3D model files: tpax811ts4-etched.step / tpax811ts4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpax811ts4.step / tpax811ts4.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (7 pp, sha256 14b0339d9d4cc862, retrieved 2026-10-18, tier: lcsc)
  • 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