main
Ray Publish 0.1.0 6125032 14d ago
{
  "slug": "lm4901mmx",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Audio Power OpAmps, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "operational amplifier-comparator",
    "lm4901mmx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm4901mmx.kicad_sym",
    "lm4901mmx.kicad_mod",
    "lm4901mmx.glb",
    "lm4901mmx.step",
    "lm4901mmx.lbr",
    "docs/hero.png",
    "docs/lm4901mmx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4901mmx-hero.glb",
    "lm4901mmx-hero.overlay.json",
    "lm4901mmx-etched.glb"
  ],
  "component": {
    "mpn": "LM4901MMX",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-10-0.5mm",
    "pin_count": 10,
    "category": "Operational Amplifier/Comparator",
    "subcategory": "Audio Power OpAmps",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm4901",
    "parts": {
      "symbol": "lm4901mmx.kicad_sym",
      "footprint": "lm4901mmx.kicad_mod",
      "model_3d": "lm4901mmx-hero.glb",
      "model_3d_plain": "lm4901mmx-etched.glb",
      "model_3d_step": "lm4901mmx-etched.step",
      "model_3d_step_plain": "lm4901mmx.step",
      "lbr": "lm4901mmx.lbr"
    },
    "distributor_links": {
      "lcsc": "C2867902"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:17:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 887 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Shutdown",
        "type": "input",
        "description": "Shutdown control input; the device enters shutdown when this pin is in the same logic state as SD Mode, and the pin should be tied to a definite voltage."
      },
      {
        "number": "2",
        "name": "Bypass",
        "type": "passive",
        "description": "Half-supply (VDD/2) bypass pin that takes an external capacitor CB (1.0 µF recommended) for filtering and turn-on pop control."
      },
      {
        "number": "3",
        "name": "SD Mode",
        "type": "input",
        "description": "Shutdown mode select, tied to VDD for shutdown-high or to GND for shutdown-low operation."
      },
      {
        "number": "4",
        "name": "+IN",
        "type": "input",
        "description": "Non-inverting input of the first amplifier."
      },
      {
        "number": "5",
        "name": "-IN",
        "type": "input",
        "description": "Inverting input of the first amplifier; the gain is set with Ri and Rf."
      },
      {
        "number": "6",
        "name": "Vo1",
        "type": "output",
        "description": "Bridged-tied-load output 1 from the first amplifier, which drives one side of the speaker."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply pin with a 2.0V to 5.5V operating range, to be bypassed with a capacitor placed close to the device."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "10",
        "name": "Vo2",
        "type": "output",
        "description": "Bridged-tied-load output 2 from the second amplifier, which is the inverted copy of Vo1 and drives the other side of the speaker."
      }
    ],
    "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": [
          "extractor flagged: Pin types for Shutdown, SD Mode and Bypass are inferred from the block diagram. The datasheet has no",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 27,
        "cost_usd": 0.6609,
        "at": "2026-10-23T18:17:31"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm4901",
        "pages": 27,
        "sha256": "72d94ec66e73eff4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "lm4901mmx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4901mmx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c13626e1ec80b9e0acfb18e955a394dfa0aee43caef0a295e5c86927ea9d3dcb",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}