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Contents

README

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TPS3705-30DGN

Texas Instruments · Supervisor And Reset ICs · HVSSOP-8

TPS3705-30DGN from Texas Instruments, in a HVSSOP-8. 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 RESET output Active-low reset output; monitors VDD and asserts low when supply voltage falls below 2.63V threshold.
2 WDO output Watchdog timer output indicating watchdog timer expiration status.
3 MR input Manual reset input (active-low); pulling low forces RESET output low independent of supply voltage.
4 VDD power_in Positive supply voltage input; recommended operating range 2V to 6V, absolute maximum 7V.
5 GND power_in Ground reference (0V); return path for all currents.
6 PFI input Power-fail voltage comparator input; accepts voltages in range -0.3V to VDD+0.3V.
7 PFO output Power-fail voltage comparator output; asserts when monitored voltage falls below threshold.
8 WDI input Watchdog timer input; pulse this input to service watchdog timer and prevent timeout reset.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HVSSOP-8
Category Power Management (PMIC)
Pins 9

CAD (KiCad official)

  • Symbol: TPS3705-30DGN
  • Footprint: Package_SO:HVSSOP-8-1EP_3x3mm_P0.65mm_EP1.57x1.89mm
  • 3D model: HVSSOP-8, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.0 mm nominal HVSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: tps3705-30dgn-etched.step / tps3705-30dgn-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps3705-30dgn.step / tps3705-30dgn.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 367028df3788682f, retrieved 2026-10-01, 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-4-5-20251001 (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