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TPS3851H30EQDRBRQ1

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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)tps3851h30eqdrbrq1factory-2.0.0extractor-text

Verified TPS3851H30EQDRBRQ1

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier mfr, 9 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: TPS3851H30EQDRBRQ1 · SON-8-EP(3x3) · 9 pins
  • ✓copper: 9 copper pads, none touching another net
  • ✓datasheet: all 9 pin names found in the 39-page datasheet
  • ✓distributor: lcsc C2067030, digikey 296-46978-2-ND, mouser 595-S3851H30EQDRBRQ1
  • ✓family: WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-ogv6w8_5/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 9 pins = 9 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 9 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ tps3851h30eqdrbrq1.kicad_sym✓ tps3851h30eqdrbrq1.kicad_mod✓ tps3851h30eqdrbrq1.step
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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 tps3851h30eqdrbrq1: viewers · Ray 19h ago
package.json Publish 0.1.0 · Ray 19h ago
page.json Set visibility: public · Ray 19h ago
README.md Publish 0.1.0 · Ray 19h ago
tps3851h30eqdrbrq1-etched.glb Publish 0.1.0 · Ray 19h ago
tps3851h30eqdrbrq1-etched.step tps3851h30eqdrbrq1: factory component page (tier=mfr) · Ray 19h ago
tps3851h30eqdrbrq1-hero.glb tps3851h30eqdrbrq1: hero GLB from the etched model (keeps the MPN mark) · Ray 19h ago
tps3851h30eqdrbrq1-hero.overlay.json Publish 0.1.0 · Ray 19h ago
tps3851h30eqdrbrq1.glb Publish 0.1.0 · Ray 19h ago
tps3851h30eqdrbrq1.kicad_mod Publish 0.1.0 · Ray 19h ago
tps3851h30eqdrbrq1.kicad_sym Publish 0.1.0 · Ray 19h ago
tps3851h30eqdrbrq1.lbr Publish 0.1.0 · Ray 19h ago
tps3851h30eqdrbrq1.step Publish 0.1.0 · Ray 19h ago
verification.json Verified: Published by the parts factory: tier mfr, 9 pins · Ray 19h ago

TPS3851H30EQDRBRQ1

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

TPS3851H30EQDRBRQ1 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 Supply voltage pin with an operating range of 1.6 V to 6.5 V; a 0.1 µF bypass capacitor is recommended for noisy systems.
2 CWD input Programmable watchdog timeout input; a capacitor to GND sets the timeout, while a 10 kΩ pull-up to VDD or leaving it unconnected selects the factory-programmed timeout.
3 MR input Manual reset input; a logic low triggers RESET, the pin is internally pulled up, and it may be tied to VDD or left floating when not externally controlled.
4 GND power_in Ground pin; the thermal pad is internally connected to GND and should be tied to a large ground plane.
5 SET1 input Logic input; grounding SET1 disables the watchdog timer, and a logic high enables it, with VIL maximum 0.25 V and VIH minimum 0.8 V.
6 WDI input Watchdog input; a falling edge must occur before the tWD timeout expires, and WDI must be driven to VDD or GND when the watchdog is disabled.
7 WDO output Open-drain watchdog output that goes low on a watchdog timeout, requires a 1 kΩ to 100 kΩ pull-up to VPU, and is high impedance when RESET is asserted.
8 RESET output Open-drain reset output that goes low when VDD falls below VITN, requires a 1 kΩ to 100 kΩ pull-up to VPU, and is held low for tRST after VDD recovers.
9 EP 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: TPS3851H30EQDRBRQ1
  • Footprint: Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm
  • 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: tps3851h30eqdrbrq1-etched.step / tps3851h30eqdrbrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps3851h30eqdrbrq1.step / tps3851h30eqdrbrq1.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 2026-11-06, tier: manufacturer)
  • 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-5-5 (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