LM2907N

{
  "slug": "lm2907n",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Pre-ordered Chips, DIP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "lm2907n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm2907n.kicad_sym",
    "lm2907n.kicad_mod",
    "lm2907n.glb",
    "lm2907n.step",
    "lm2907n.lbr",
    "docs/hero.png",
    "docs/lm2907n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm2907n-hero.glb",
    "lm2907n-hero.overlay.json",
    "lm2907n-etched.glb"
  ],
  "component": {
    "mpn": "LM2907N",
    "manufacturer": "Texas Instruments",
    "package": "DIP-14",
    "pin_count": 14,
    "category": "Interface ICs",
    "subcategory": "Pre-ordered Chips",
    "datasheet": "https://www.ti.com/lit/ds/symlink/lm2907n.pdf",
    "parts": {
      "symbol": "lm2907n.kicad_sym",
      "footprint": "lm2907n.kicad_mod",
      "model_3d": "lm2907n-hero.glb",
      "model_3d_plain": "lm2907n-etched.glb",
      "model_3d_step": "lm2907n-etched.step",
      "model_3d_step_plain": "lm2907n.step",
      "lbr": "lm2907n.lbr"
    },
    "distributor_links": {
      "lcsc": "C1518986",
      "mouser": "926-LM2907N"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T22:36:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "926-LM2907N",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TACH+",
        "type": "input",
        "description": "Positive terminal for the input signal that leads to the noninverting terminal of the internal Schmitt-Trigger comparator."
      },
      {
        "number": "2",
        "name": "CP1",
        "type": "output",
        "description": "A capacitor placed on this pin will be charged up to VCC/2 by a constant current source of 180 µA typical at the start of every positive half cycle, and is discharged the same amount at the same rate at the beginning of negative half cycles."
      },
      {
        "number": "3",
        "name": "CP2",
        "type": "output",
        "description": "The charge pump sources current out of this pin equal to the absolute value of the capacitor current on CP1, and a resistor and capacitor in parallel connected to this pin filter the current pulses into the output voltage."
      },
      {
        "number": "4",
        "name": "IN+",
        "type": "input",
        "description": "Noninverting input to the high gain op amp."
      },
      {
        "number": "5",
        "name": "EMIT",
        "type": "output",
        "description": "The emitter of the bipolar junction transistor."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "8",
        "name": "COL",
        "type": "input",
        "description": "The collector of the bipolar junction transistor; the collector may be taken above VCC up to a maximum VCE of 28 V."
      },
      {
        "number": "9",
        "name": "V+",
        "type": "power_in",
        "description": "Supply voltage; the absolute maximum supply voltage is 28 V."
      },
      {
        "number": "10",
        "name": "IN-",
        "type": "input",
        "description": "Inverting input to the high gain op amp."
      },
      {
        "number": "11",
        "name": "TACH-",
        "type": "input",
        "description": "Negative terminal for the input signal that leads to the noninverting terminal of the internal Schmitt-Trigger comparator."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      }
    ],
    "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 datasheet's pin table lists COL as type I, but it is the open collector of an output transistor.; The pin table lists CP1 and CP2 as O. The CP1 and CP2 descriptions are paraphrased from the datashee; The MPN LM2907N maps to the 14-pin PDIP (NFF) per the orderable addendum (LM2907N/NOPB, PDIP NFF 14)"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0566,
        "at": "2026-10-30T22:36:31"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/lm2907n.pdf",
        "pages": 41,
        "sha256": "40775ae7dd7a5d60",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm2907n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.05,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3dae072a95c64bee0d1e58be8e75383639f5017ab982de1749d05808a4eed058",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2907n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": -3.3,
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        "footprint_binding": "identity",
        "sha256": "8422661a63d65ef9bba1e6687b7196508860114f893e50471c0865cc81d438c9",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}