component
TPAX811SS4
Public Made by Adomby adom
TECH PUBLIC Supervisor And Reset ICs, SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPAX811SS4
TECH PUBLIC · Supervisor And Reset ICs · SOT-143
TPAX811SS4 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: reset is asserted while MR is low and stays asserted for 140 ms after MR returns high; has an internal 20kΩ pull-up, may be left floating, driven by TTL/CMOS logic or shorted to ground through a switch. |
| 4 | VCC | power_in | Positive supply input, both the device's operating supply 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:
TPAX811SS4 - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
tpax811ss4-etched.step/tpax811ss4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpax811ss4.step/tpax811ss4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (7 pp, sha256
2dd6b5318415f0e4, 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, primaryclaude-sonnet-5-5(vision), consensusclaude-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).