component
TPA321DR
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Texas Instruments Audio Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# TPA321DR++**Texas Instruments** · Audio Amplifiers · SOIC-8++TPA321DR from Texas Instruments, in a SOIC-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 | SHUTDOWN | input | SHUTDOWN places the entire device in shutdown mode when held high with IDD ~ 0.15 µA. |+| 2 | BYPASS | input | BYPASS is the tap to the voltage divider for internal mid-supply bias; connect to 0.1-µF to 1-µF capacitor for audio amplifier operation. |+| 3 | IN+ | input | IN+ is the noninverting input; typically tied to the BYPASS terminal for single-ended operations. |+| 4 | IN- | input | IN- is the inverting input; typically used as the audio input terminal. |+| 5 | VO+ | output | VO+ is the positive BTL (bridge-tied load) output. |+| 6 | VDD | power_in | VDD is the supply voltage terminal with operating range 2.5 V to 5.5 V. |+| 7 | GND | power_in | GND is the ground connection. |+| 8 | VO- | output | VO- is the negative BTL (bridge-tied load) output. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Amplifiers/Comparators |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `TPA321DR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `tpa321dr-etched.step` / `tpa321dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpa321dr.step` / `tpa321dr.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/lit/ds/symlink/tpa321.pdf) (33 pp, sha256 `66e3086d33d8de30`, retrieved 2026-10-01, tier: manufacturer)+- **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/tpa321dr-datasheet.pdf)
page.jsonadded+156@@ -0,0 +1,156 @@+{+ "slug": "tpa321dr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Audio Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "amplifiers-comparators",+ "tpa321dr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tpa321dr.kicad_sym",+ "tpa321dr.kicad_mod",+ "tpa321dr.glb",+ "tpa321dr.step",+ "tpa321dr.lbr",+ "docs/hero.png",+ "docs/tpa321dr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "TPA321DR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Amplifiers/Comparators",+ "subcategory": "Audio Amplifiers",+ "datasheet": "https://www.ti.com/lit/ds/symlink/tpa321.pdf",+ "parts": {+ "symbol": "tpa321dr.kicad_sym",+ "footprint": "tpa321dr.kicad_mod",+ "model_3d": "tpa321dr-etched.glb",+ "model_3d_plain": "tpa321dr.glb",+ "model_3d_step": "tpa321dr-etched.step",+ "model_3d_step_plain": "tpa321dr.step",+ "lbr": "tpa321dr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2868410",+ "digikey": "296-46365-2-ND",+ "mouser": "595-TPA321DR"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T04:41:13Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-46365-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-TPA321DR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "SHUTDOWN",+ "type": "input",+ "description": "SHUTDOWN places the entire device in shutdown mode when held high with IDD ~ 0.15 µA."+ },+ {+ "number": "2",+ "name": "BYPASS",+ "type": "input",+ "description": "BYPASS is the tap to the voltage divider for internal mid-supply bias; connect to 0.1-µF to 1-µF capacitor for audio amplifier operation."+ },+ {+ "number": "3",+ "name": "IN+",+ "type": "input",+ "description": "IN+ is the noninverting input; typically tied to the BYPASS terminal for single-ended operations."+ },+ {+ "number": "4",+ "name": "IN-",+ "type": "input",+ "description": "IN- is the inverting input; typically used as the audio input terminal."+ },+ {+ "number": "5",+ "name": "VO+",+ "type": "output",+ "description": "VO+ is the positive BTL (bridge-tied load) output."+ },+ {+ "number": "6",+ "name": "VDD",+ "type": "power_in",+ "description": "VDD is the supply voltage terminal with operating range 2.5 V to 5.5 V."+ },+ {+ "number": "7",+ "name": "GND",+ "type": "power_in",+ "description": "GND is the ground connection."+ },+ {+ "number": "8",+ "name": "VO-",+ "type": "output",+ "description": "VO- is the negative BTL (bridge-tied load) output."+ }+ ],+ "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": [],+ "pages_sent": 8,+ "cost_usd": 0.056,+ "at": "2026-10-01T04:40:58"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/tpa321.pdf",+ "pages": 33,+ "sha256": "66e3086d33d8de30",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}