TPA4411MRTJR

{
  "slug": "tpa4411mrtjr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Audio Power OpAmps, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "operational amplifier-comparator",
    "tpa4411mrtjr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tpa4411mrtjr.kicad_sym",
    "tpa4411mrtjr.kicad_mod",
    "tpa4411mrtjr.glb",
    "tpa4411mrtjr.step",
    "tpa4411mrtjr.lbr",
    "docs/hero.png",
    "docs/tpa4411mrtjr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tpa4411mrtjr-hero.glb",
    "tpa4411mrtjr-hero.overlay.json",
    "tpa4411mrtjr-etched.glb"
  ],
  "component": {
    "mpn": "TPA4411MRTJR",
    "manufacturer": "Texas Instruments",
    "package": "QFN-20-EP(4x4)",
    "pin_count": 21,
    "category": "Operational Amplifier/Comparator",
    "subcategory": "Audio Power OpAmps",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tpa4411mrtjr.pdf",
    "parts": {
      "symbol": "tpa4411mrtjr.kicad_sym",
      "footprint": "tpa4411mrtjr.kicad_mod",
      "model_3d": "tpa4411mrtjr-hero.glb",
      "model_3d_plain": "tpa4411mrtjr-etched.glb",
      "model_3d_step": "tpa4411mrtjr-etched.step",
      "model_3d_step_plain": "tpa4411mrtjr.step",
      "lbr": "tpa4411mrtjr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2870295",
      "digikey": "296-26885-2-ND",
      "mouser": "595-TPA4411MRTJR"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T12:23:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-26885-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPA4411MRTJR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C1P",
        "type": "passive",
        "description": "Charge pump flying capacitor positive terminal."
      },
      {
        "number": "2",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground, connect to ground."
      },
      {
        "number": "3",
        "name": "C1N",
        "type": "passive",
        "description": "Charge pump flying capacitor negative terminal."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "5",
        "name": "PVSS",
        "type": "power_out",
        "description": "Output from charge pump (negative supply rail)."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "7",
        "name": "SVSS",
        "type": "power_in",
        "description": "Amplifier negative supply, connect to PVSS via star connection."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "9",
        "name": "OUTL",
        "type": "output",
        "description": "Left audio channel output signal."
      },
      {
        "number": "10",
        "name": "SVDD",
        "type": "power_in",
        "description": "Amplifier positive supply, connect to PVDD via star connection."
      },
      {
        "number": "11",
        "name": "OUTR",
        "type": "output",
        "description": "Right audio channel output signal."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "13",
        "name": "INL",
        "type": "input",
        "description": "Left audio channel input signal."
      },
      {
        "number": "14",
        "name": "SDR",
        "type": "input",
        "description": "Right channel shutdown, active low logic (VIH min 1.5 V, VIL max 0.5 V)."
      },
      {
        "number": "15",
        "name": "INR",
        "type": "input",
        "description": "Right audio channel input signal."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "17",
        "name": "SGND",
        "type": "power_in",
        "description": "Signal ground, connect to ground; route separately from PGND back to the decoupling capacitor."
      },
      {
        "number": "18",
        "name": "SDL",
        "type": "input",
        "description": "Left channel shutdown, active low logic (VIH min 1.5 V, VIL max 0.5 V)."
      },
      {
        "number": "19",
        "name": "PVDD",
        "type": "power_in",
        "description": "Supply voltage, connect to positive supply (1.8 V to 4.5 V)."
      },
      {
        "number": "20",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad must be soldered to a floating PCB plane; do not connect to power or ground since it is connected internally to PVSS."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Exposed pad has no pin number in the datasheet; assigned '21' by convention. Type chosen as passive ; Pin I/O types for C1P/C1N were listed as I/O (flying capacitor terminals); mapped to passive. SVSS/S"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0905,
        "at": "2026-10-31T12:23:35"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tpa4411mrtjr.pdf",
        "pages": 38,
        "sha256": "904ad318703402a3",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tpa4411mrtjr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tpa4411mrtjr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "593b9b1a443adc8066612d120d5272c84ea5bbb9e8be40be02878b49dab2eb86",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RTJ0020D",
      "source_page": 32,
      "D": {
        "nom_mm": 4.0,
        "range_mm": [
          3.9,
          4.1
        ]
      },
      "E1": {
        "nom_mm": 4.0,
        "range_mm": [
          3.9,
          4.1
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.8,
        "range_mm": [
          null,
          0.8
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "tpa4411mrtjr.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}