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TPS3851G33SQDRBRQ1
Public Made by Adomby adom
Texas Instruments Monitors & Reset Circuits, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# TPS3851G33SQDRBRQ1++**Texas Instruments** · Monitors & Reset Circuits · SON-8-EP(3x3)++TPS3851G33SQDRBRQ1 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; operating range VDD = 1.6V to 6.5V with recommended 0.1μF bypass capacitor for noisy systems |+| 2 | CWD | input | Programmable watchdog timeout input; connect capacitor between this pin and ground to set watchdog timeout, or connect 10kΩ resistor to VDD for preset watchdog timeout selection |+| 3 | MR | input | Manual reset input with internal pull-up; logic low level triggers RESET; RESET held low for fixed reset delay tRST after MR returns to logic high |+| 4 | GND | power_in | Ground reference pin; internally connects thermal pad to large ground plane |+| 5 | SET1 | input | Logic input to enable/disable watchdog timer; logic low disables watchdog, logic high enables normal watchdog operation with 150µs setup time after transition |+| 6 | WDI | input | Watchdog input triggered by falling edge; falling edge must occur before watchdog timeout (tWD) ends to prevent WDO trigger; must be driven to VDD or GND when watchdog disabled |+| 7 | WDO | output | Watchdog output (open-drain); driven low after watchdog timeout for duration tRST; high-impedance state when RESET is low; requires 1kΩ to 100kΩ pull-up resistor to VPU |+| 8 | RESET | output | Reset output (open-drain); driven low when VDD falls below undervoltage threshold VITN; held low for delay tRST after recovery to VITN + VHYST; requires 1kΩ to 100kΩ pull-up resistor to VPU |+| 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 Supply Chip |+| Pins | 9 |++## CAD (KiCad official)++- Symbol: `TPS3851G33SQDRBRQ1`+- Footprint: `Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm`+- 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)+- 3D model files: `tps3851g33sqdrbrq1-etched.step` / `tps3851g33sqdrbrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps3851g33sqdrbrq1.step` / `tps3851g33sqdrbrq1.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps3851-q1) (39 pp, sha256 `187a2d3c4a847f7d`, retrieved 2026-10-07, 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](docs/tps3851g33sqdrbrq1-datasheet.pdf)
page.jsonadded+206@@ -0,0 +1,206 @@+{+ "slug": "tps3851g33sqdrbrq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Monitors & Reset Circuits, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power supply chip",+ "tps3851g33sqdrbrq1",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tps3851g33sqdrbrq1.kicad_sym",+ "tps3851g33sqdrbrq1.kicad_mod",+ "tps3851g33sqdrbrq1.glb",+ "tps3851g33sqdrbrq1.step",+ "tps3851g33sqdrbrq1.lbr",+ "docs/hero.png",+ "docs/tps3851g33sqdrbrq1-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "tps3851g33sqdrbrq1-hero.glb",+ "tps3851g33sqdrbrq1-hero.overlay.json"+ ],+ "component": {+ "mpn": "TPS3851G33SQDRBRQ1",+ "manufacturer": "Texas Instruments",+ "package": "SON-8-EP(3x3)",+ "pin_count": 9,+ "category": "Power Supply Chip",+ "subcategory": "Monitors & Reset Circuits",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tps3851-q1",+ "parts": {+ "symbol": "tps3851g33sqdrbrq1.kicad_sym",+ "footprint": "tps3851g33sqdrbrq1.kicad_mod",+ "model_3d": "tps3851g33sqdrbrq1-hero.glb",+ "model_3d_plain": "tps3851g33sqdrbrq1.glb",+ "model_3d_step": "tps3851g33sqdrbrq1-etched.step",+ "model_3d_step_plain": "tps3851g33sqdrbrq1.step",+ "lbr": "tps3851g33sqdrbrq1.lbr"+ },+ "distributor_links": {+ "lcsc": "C2066732",+ "digikey": "296-51954-2-ND",+ "mouser": "595-S3851G33SQDRBRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T01:56:42Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-51954-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-S3851G33SQDRBRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VDD",+ "type": "power_in",+ "description": "Power supply voltage pin; operating range VDD = 1.6V to 6.5V with recommended 0.1μF bypass capacitor for noisy systems"+ },+ {+ "number": "2",+ "name": "CWD",+ "type": "input",+ "description": "Programmable watchdog timeout input; connect capacitor between this pin and ground to set watchdog timeout, or connect 10kΩ resistor to VDD for preset watchdog timeout selection"+ },+ {+ "number": "3",+ "name": "MR",+ "type": "input",+ "description": "Manual reset input with internal pull-up; logic low level triggers RESET; RESET held low for fixed reset delay tRST after MR returns to logic high"+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin; internally connects thermal pad to large ground plane"+ },+ {+ "number": "5",+ "name": "SET1",+ "type": "input",+ "description": "Logic input to enable/disable watchdog timer; logic low disables watchdog, logic high enables normal watchdog operation with 150µs setup time after transition"+ },+ {+ "number": "6",+ "name": "WDI",+ "type": "input",+ "description": "Watchdog input triggered by falling edge; falling edge must occur before watchdog timeout (tWD) ends to prevent WDO trigger; must be driven to VDD or GND when watchdog disabled"+ },+ {+ "number": "7",+ "name": "WDO",+ "type": "output",+ "description": "Watchdog output (open-drain); driven low after watchdog timeout for duration tRST; high-impedance state when RESET is low; requires 1kΩ to 100kΩ pull-up resistor to VPU"+ },+ {+ "number": "8",+ "name": "RESET",+ "type": "output",+ "description": "Reset output (open-drain); driven low when VDD falls below undervoltage threshold VITN; held low for delay tRST after recovery to VITN + VHYST; requires 1kΩ to 100kΩ pull-up resistor to VPU"+ },+ {+ "number": "9",+ "name": "Thermal Pad",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 9 added from the footprint"+ ],+ "pages_sent": 23,+ "cost_usd": 0.1697,+ "at": "2026-10-07T01:56:29"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps3851-q1",+ "pages": 39,+ "sha256": "187a2d3c4a847f7d",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 9,+ "described": 9,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "tps3851g33sqdrbrq1.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3,+ 2.98,+ 0.82+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "cbee016fb8ee69c44b13d8818fcf65dcf240f5fdca70b22700521eb617c5311a",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tps3851g33sqdrbrq1-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3,+ 2.98,+ 0.82+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "38b75bc649bf692b40e0e734e648d364b895b413e3451f38d79436db76ecb8c5",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}