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ts831-3idt

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STMicroelectronics Supervisor and Reset ICs, SO-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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README

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TS831-3IDT

STMicroelectronics · Supervisor and Reset ICs · SO-8

TS831-3IDT from STMicroelectronics, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUT output Active-low open-drain reset output. Pulls low when the monitored VCC (INPUT) falls below the reset threshold (2.71V typ for TS831-3); requires an external pull-up resistor. Max sink current 5mA for TS831-3.
2 IN power_in Supply input (VCC) and monitored voltage; the internal comparator asserts RESET when this pin drops below the threshold. Operating range 1V to 5.5V, absolute max 7V. An internal clamp diode exists between pin 1 and pin 2 (IF max 100mA).
3 NC unconnected No internal connection. Leave floating or tie to GND per board practice.
4 GND power_in Device ground / negative supply return; reference for VCC and OUT.
5 NC unconnected No internal connection.
6 NC unconnected No internal connection.
7 NC unconnected No internal connection.
8 NC unconnected No internal connection.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SO-8
Category PMIC
Pins 8

Ordering variants

  • TS831-3IDT
  • TS831-3IDTIPT
  • TS831-3IDTIZ

CAD (KiCad official)

  • Symbol: TS831-3IDT
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SO-8 (KiCad packages3D, STEP)
  • 3D model files: ts831-3idt-etched.step / ts831-3idt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ts831-3idt.step / ts831-3idt.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (None pp, sha256 a9b2dcc0eb416e7e, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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