main
Ray Set visibility: public c54dc4f 9d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm4881mx",
  "title": "LM4881MX",
  "brief": "Texas Instruments Audio Power OpAmps, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "operational amplifier-comparator",
    "lm4881mx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM4881MX",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Operational Amplifier/Comparator",
    "subcategory": "Audio Power OpAmps",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm4881",
    "parts": {
      "symbol": "lm4881mx.kicad_sym",
      "footprint": "lm4881mx.kicad_mod",
      "model_3d": "lm4881mx-hero.glb",
      "model_3d_plain": "lm4881mx-etched.glb",
      "model_3d_step": "lm4881mx-etched.step",
      "model_3d_step_plain": "lm4881mx.step",
      "lbr": "lm4881mx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2861347",
      "mouser": "926-LM4881MX"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T02:25:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "926-LM4881MX",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT A",
        "type": "output",
        "description": "Amplifier A output, coupled to the load through an output capacitor, drives 8Ω to 32Ω loads (200 mW typ into 8Ω at 0.1% THD)."
      },
      {
        "number": "2",
        "name": "IN A",
        "type": "input",
        "description": "Amplifier A inverting input, gain set by Rf/Ri and coupled through an input capacitor Ci."
      },
      {
        "number": "3",
        "name": "BYPASS",
        "type": "passive",
        "description": "Half-supply bypass pin where capacitor CB (1.0 µF recommended) provides filtering and sets turn-on click and pop performance."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device; all voltages are measured with respect to this pin."
      },
      {
        "number": "5",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Shutdown control, logic high (VDD) turns the amplifier off (0.7 µA typ), logic low enables it, trigger point is about half supply, and it must not be left floating."
      },
      {
        "number": "6",
        "name": "IN B",
        "type": "input",
        "description": "Amplifier B inverting input, gain set by Rf/Ri and coupled through an input capacitor Ci."
      },
      {
        "number": "7",
        "name": "OUT B",
        "type": "output",
        "description": "Amplifier B output, coupled to the load through an output capacitor, drives 8Ω to 32Ω loads (200 mW typ into 8Ω at 0.1% THD)."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply, 2.7V to 5.5V operating range (6.0V absolute maximum), bypassed with a capacitor placed close to the pin."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 26,
        "cost_usd": 0.4281,
        "at": "2026-10-29T02:25:06"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm4881",
        "pages": 26,
        "sha256": "26d785feb917172e",
        "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"
    },
    "models_3d": [
      {
        "file": "lm4881mx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4881mx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4d1a26bd307125c91025e3f7698c78a3ac7387692160a97469279d8b23a52021",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "D",
      "source_page": 23,
      "D": {
        "nom_mm": 4.902,
        "range_mm": [
          4.801,
          5.004
        ]
      },
      "E1": {
        "nom_mm": 3.899,
        "range_mm": [
          3.81,
          3.988
        ]
      },
      "E": {
        "nom_mm": 5.994,
        "range_mm": [
          5.791,
          6.198
        ]
      },
      "e": {
        "nom_mm": 1.27,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.753,
        "range_mm": [
          null,
          1.753
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "lm4881mx.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-8",
      "Category": "Operational Amplifier/Comparator",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "26d785feb917172e50e29caeebd14564a31ce2a22a5accb235d66d566e97e3a4",
      "rows": [
        {
          "name": "Output Power (RL = 8 Ω, THD = 0.1% max)",
          "symbol": "PO",
          "kind": "electrical",
          "unit": "mW",
          "min": 125,
          "typ": 200,
          "max": null,
          "conditions": "THD = 0.1% (max); f = 1 kHz; RL = 8Ω; VDD = 5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.6,
          "max": 6,
          "conditions": "VIN = 0V, IO = 0A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.7,
          "max": 5,
          "conditions": "VPIN1 = VDD",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Offset Voltage",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 50,
          "conditions": "VIN = 0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Voltage",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (operating)",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "TMIN ≤ TA ≤ TMAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage (absolute maximum)",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit VDD + 0.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD Susceptibility (human body model)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "Human body model, 100 pF discharged through 1.5 kΩ",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ESD Susceptibility (machine model)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Machine model, 220 pF–240 pF discharged through all pins",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Ambient (SOIC)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 170,
          "max": null,
          "conditions": "SOIC package, board mounted",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Case (SOIC)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 35,
          "max": null,
          "conditions": "SOIC package",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm4881mx"
  ],
  "discovery_pitch": "LM4881MX (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm4881mx.kicad_sym",
    "lm4881mx.kicad_mod",
    "lm4881mx.glb",
    "lm4881mx.step",
    "lm4881mx.lbr",
    "docs/hero.png",
    "docs/lm4881mx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4881mx-hero.glb",
    "lm4881mx-hero.overlay.json",
    "lm4881mx-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}