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TPS25821DSST
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Texas Instruments Interface - Specialized, WSON-12-EP(2x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+50@@ -0,0 +1,50 @@+# TPS25821DSST++**Texas Instruments** · Interface - Specialized · WSON-12-EP(2x3)++TPS25821DSST from Texas Instruments, in a WSON-12-EP(2x3). 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 | IN | power_in | Device input supply for the VBUS internal power switch; on the TPS25820 this pin also supplies the VCONN internal power switch, which the TPS25821 does not have. |+| 2 | IN | power_in | Device input supply for the VBUS internal power switch; on the TPS25820 this pin also supplies the VCONN internal power switch, which the TPS25821 does not have. |+| 3 | CHG | input | Charge logic input that selects between standard USB and 1.5-A Type-C current sourcing ability. |+| 4 | EN | input | Logic input that turns the device on and off. |+| 5 | FAULT | output | Open-drain logic output that asserts when the device is in overtemperature and/or VBUS is in current limit. |+| 6 | SINK | output | Open-drain logic output that asserts when a Type-C Sink is identified on the CC lines. |+| 7 | POL | output | Open-drain logic output that asserts when the CC2 pin is connected to the cable CC line, giving the information needed to mux the super speed lines. |+| 8 | REF | input | Analog input used to set the current reference; connect a 0.5%, 100-ppm, 100-kΩ resistor between this pin and GND. |+| 9 | CC1 | bidirectional | Analog input/output that connects to the Type-C receptacle CC1 pin. |+| 10 | GND | power_in | Ground. |+| 11 | CC2 | bidirectional | Analog input/output that connects to the Type-C receptacle CC2 pin. |+| 12 | OUT | power_out | VBUS power switch output. |+| 13 | Thermal Pad | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WSON-12-EP(2x3) |+| Category | Interface |+| Pins | 13 |++## CAD (KiCad official)++- Symbol: `TPS25821DSST`+- Footprint: `Package_SON:WSON-12-1EP_3x2mm_P0.5mm_EP1x2.65`+- 3D model: WSON-12-EP(2x3), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.75 mm nominal WSON 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: `tps25821dsst-etched.step` / `tps25821dsst-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps25821dsst.step` / `tps25821dsst.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/tps25821) (35 pp, sha256 `d6bec2609091145a`, retrieved 2026-10-08, 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-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](docs/tps25821dsst-datasheet.pdf)
page.jsonadded+231@@ -0,0 +1,231 @@+{+ "slug": "tps25821dsst",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Interface - Specialized, WSON-12-EP(2x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "tps25821dsst",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tps25821dsst.kicad_sym",+ "tps25821dsst.kicad_mod",+ "tps25821dsst.glb",+ "tps25821dsst.step",+ "tps25821dsst.lbr",+ "docs/hero.png",+ "docs/tps25821dsst-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "tps25821dsst-hero.glb",+ "tps25821dsst-hero.overlay.json"+ ],+ "component": {+ "mpn": "TPS25821DSST",+ "manufacturer": "Texas Instruments",+ "package": "WSON-12-EP(2x3)",+ "pin_count": 13,+ "category": "Interface",+ "subcategory": "Interface - Specialized",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tps25821",+ "parts": {+ "symbol": "tps25821dsst.kicad_sym",+ "footprint": "tps25821dsst.kicad_mod",+ "model_3d": "tps25821dsst-hero.glb",+ "model_3d_plain": "tps25821dsst.glb",+ "model_3d_step": "tps25821dsst-etched.step",+ "model_3d_step_plain": "tps25821dsst.step",+ "lbr": "tps25821dsst.lbr"+ },+ "distributor_links": {+ "lcsc": "C1848133",+ "digikey": "296-TPS25821DSSTTR-ND",+ "mouser": "595-TPS25821DSST"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T19:59:53Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-TPS25821DSSTTR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-TPS25821DSST",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "IN",+ "type": "power_in",+ "description": "Device input supply for the VBUS internal power switch; on the TPS25820 this pin also supplies the VCONN internal power switch, which the TPS25821 does not have."+ },+ {+ "number": "2",+ "name": "IN",+ "type": "power_in",+ "description": "Device input supply for the VBUS internal power switch; on the TPS25820 this pin also supplies the VCONN internal power switch, which the TPS25821 does not have."+ },+ {+ "number": "3",+ "name": "CHG",+ "type": "input",+ "description": "Charge logic input that selects between standard USB and 1.5-A Type-C current sourcing ability."+ },+ {+ "number": "4",+ "name": "EN",+ "type": "input",+ "description": "Logic input that turns the device on and off."+ },+ {+ "number": "5",+ "name": "FAULT",+ "type": "output",+ "description": "Open-drain logic output that asserts when the device is in overtemperature and/or VBUS is in current limit."+ },+ {+ "number": "6",+ "name": "SINK",+ "type": "output",+ "description": "Open-drain logic output that asserts when a Type-C Sink is identified on the CC lines."+ },+ {+ "number": "7",+ "name": "POL",+ "type": "output",+ "description": "Open-drain logic output that asserts when the CC2 pin is connected to the cable CC line, giving the information needed to mux the super speed lines."+ },+ {+ "number": "8",+ "name": "REF",+ "type": "input",+ "description": "Analog input used to set the current reference; connect a 0.5%, 100-ppm, 100-kΩ resistor between this pin and GND."+ },+ {+ "number": "9",+ "name": "CC1",+ "type": "bidirectional",+ "description": "Analog input/output that connects to the Type-C receptacle CC1 pin."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground."+ },+ {+ "number": "11",+ "name": "CC2",+ "type": "bidirectional",+ "description": "Analog input/output that connects to the Type-C receptacle CC2 pin."+ },+ {+ "number": "12",+ "name": "OUT",+ "type": "power_out",+ "description": "VBUS power switch output."+ },+ {+ "number": "13",+ "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-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The thermal pad is listed on page 3 as 'Thermal pad on bottom of package' with no printed pin number; Package hint 'WSON-12-EP(2x3)' differs from the datasheet's stated 3.00 mm x 2.00 mm nominal WSON (D; Pin types were mapped to KiCad ERC classes from the datasheet's I/O column: O pins are output (open-",+ "exposed pad 13 added from the footprint"+ ],+ "pages_sent": 7,+ "cost_usd": 0.05,+ "at": "2026-10-08T19:59:24"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps25821",+ "pages": 35,+ "sha256": "d6bec2609091145a",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 13,+ "described": 13,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "tps25821dsst.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 2.02,+ 3,+ 0.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "0d0b47fcc882fb8abbdce9d730b7d2d0c8ad420345ec2c079cebeb75ee4ea12b",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tps25821dsst-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 2.02,+ 3,+ 0.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "64da1ed80e5119c1fb4faf61efc050d0a37768f905b023d8668f7057b44e562c",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}