component

TPS3851H18SQDRBRQ1

Public Made by Adom

by adom

Texas Instruments Supervisor And Reset ICs, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tps3851h18sqdrbrq1factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 19h ago
viewers tps3851h18sqdrbrq1: viewers · Ray 19h ago
package.json Publish 0.1.0 · Ray 19h ago
page.json Set visibility: public · Ray 19h ago
README.md Initial commit: component/tps3851h18sqdrbrq1 · Ray 19h ago
tps3851h18sqdrbrq1-etched.glb tps3851h18sqdrbrq1: factory component page (tier=lcsc) · Ray 19h ago
tps3851h18sqdrbrq1-etched.step tps3851h18sqdrbrq1: factory component page (tier=lcsc) · Ray 19h ago
tps3851h18sqdrbrq1-hero.glb Publish 0.1.0 · Ray 19h ago
tps3851h18sqdrbrq1-hero.overlay.json Publish 0.1.0 · Ray 19h ago
tps3851h18sqdrbrq1.glb Publish 0.1.0 · Ray 19h ago
tps3851h18sqdrbrq1.kicad_mod Publish 0.1.0 · Ray 19h ago
tps3851h18sqdrbrq1.kicad_sym Publish 0.1.0 · Ray 19h ago
tps3851h18sqdrbrq1.lbr Publish 0.1.0 · Ray 19h ago
tps3851h18sqdrbrq1.step Publish 0.1.0 · Ray 19h ago

TPS3851H18SQDRBRQ1

Texas Instruments · Supervisor And Reset ICs · SON-8-EP(3x3)

TPS3851H18SQDRBRQ1 from Texas Instruments, in a SON-8-EP(3x3). 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 VDD power_in Power supply voltage pin; 1.6V to 6.5V input range; recommended to connect 0.1µF bypass capacitor for noisy systems.
2 CWD input Programmable watchdog timeout input; connect capacitor to GND for user-programmable timeout or 10kΩ pull-up to VDD for factory preset timing.
3 MR input Manual reset input; logic low level triggers RESET; internally pulled up.
4 GND power_in Ground reference pin; thermal pad internally connected to GND.
5 SET1 input Logic input for watchdog enable/disable control; grounding this pin disables the watchdog timer.
6 WDI input Watchdog input; falling edge must occur before watchdog timeout (tWD) expires; must be driven to VDD or GND when unused.
7 WDO output Watchdog output (open-drain); goes low after watchdog timeout; connect with 1kΩ to 100kΩ pull-up resistor to VPU.
8 RESET output Reset output (open-drain); goes low when VDD falls below VITN; connect with 1kΩ to 100kΩ pull-up resistor to VPU; RESET delay time (tRST) = 200ms typical.
9 Thermal Pad passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SON-8-EP(3x3)
Category Power Management (PMIC)
Pins 9

CAD (KiCad official)

  • Symbol: TPS3851H18SQDRBRQ1
  • Footprint: Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm
  • 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: tps3851h18sqdrbrq1-etched.step / tps3851h18sqdrbrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps3851h18sqdrbrq1.step / tps3851h18sqdrbrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 187a2d3c4a847f7d, retrieved 2026-10-05, 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