main
Ray ln4890mme-g: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) de1c925
{
  "schema_version": 1,
  "type": "component",
  "slug": "ln4890mme-g",
  "title": "LN4890MME-G",
  "brief": "NATLINEAR Audio Power OpAmps, MSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "op-amp-cmp",
    "ln4890mme-g"
  ],
  "component": {
    "mpn": "LN4890MME-G",
    "manufacturer": "NATLINEAR",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Op-amp/Cmp",
    "subcategory": "Audio Power OpAmps",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f9d5b37729500d50bed7263c9a278ebd.pdf",
    "parts": {
      "symbol": "ln4890mme-g.kicad_sym",
      "footprint": "ln4890mme-g.kicad_mod",
      "model_3d": "ln4890mme-g-etched.glb",
      "model_3d_plain": "ln4890mme-g.glb",
      "model_3d_step": "ln4890mme-g-etched.step",
      "model_3d_step_plain": "ln4890mme-g.step",
      "lbr": "ln4890mme-g.lbr"
    },
    "distributor_links": {
      "lcsc": "C236383"
    },
    "pins": [
      {
        "number": "1",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Chip enable input, active low. Drive low to place the amplifier in low-power shutdown mode (typ. 0.1 µA); drive high (VIH ≥ 1.2 V) for normal operation. VIL ≤ 0.4 V."
      },
      {
        "number": "2",
        "name": "BYPASS",
        "type": "passive",
        "description": "Bypass capacitance input pin for the internal mid-supply bias reference. Connect a 1 µF ceramic capacitor from this pin to GND for pop/click suppression and PSRR performance."
      },
      {
        "number": "3",
        "name": "+IN",
        "type": "input",
        "description": "Non-inverting (positive) differential audio input terminal to internal amplifier A1. Typically AC-coupled and referenced to BYPASS via an external resistor."
      },
      {
        "number": "4",
        "name": "-IN",
        "type": "input",
        "description": "Inverting (negative) differential audio input terminal to internal amplifier A1. Combined with an external Rf feedback resistor sets the closed-loop gain (Av = -Rf/Rin)."
      },
      {
        "number": "5",
        "name": "VO1",
        "type": "output",
        "description": "Negative BTL output terminal (inverted phase). Drives one side of an 8Ω speaker load; delivers up to 1W into 8Ω at 5V VDD in combination with VO2."
      },
      {
        "number": "6",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply pin. Operating range 2.2 V to 5.0 V (absolute max 5.0 V). Decouple with a 1 µF capacitor to GND close to the pin."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference and return for supply, bias, and output currents."
      },
      {
        "number": "8",
        "name": "VO2",
        "type": "output",
        "description": "Positive BTL output terminal (in-phase). Drives the opposite side of the 8Ω speaker load from VO1 to form the bridge-tied load; no output coupling capacitor required."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f9d5b37729500d50bed7263c9a278ebd.pdf",
        "pages": 14,
        "sha256": "157f37ecb9961615",
        "source_tier": "lcsc"
      },
      "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.1125,
        -0.975
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "MSOP-8_3x3mm_P0.65mm@sha256:c85207be7edf4b5e",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ln4890mme-g.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ln4890mme-g-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "929f54afd4fcc7f91a292c9d2e88965cea5d07a5d86cc091ef449542ee908169",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "NATLINEAR",
      "Package": "MSOP-8",
      "Category": "Op-amp/Cmp",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ln4890mme-g"
  ],
  "discovery_pitch": "LN4890MME-G (NATLINEAR) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ln4890mme-g.kicad_sym",
    "ln4890mme-g.kicad_mod",
    "ln4890mme-g.glb",
    "ln4890mme-g.step",
    "ln4890mme-g-etched.step",
    "ln4890mme-g.lbr",
    "docs/hero.png",
    "docs/ln4890mme-g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "LN4890MME-GMMA",
      "kind": "packaging"
    },
    {
      "mpn": "LN4890MME-GMMC",
      "kind": "packaging"
    },
    {
      "mpn": "LN4890MME-GMMD",
      "kind": "packaging"
    },
    {
      "mpn": "LN4890MME-GMA",
      "kind": "packaging"
    },
    {
      "mpn": "LN4890MME-GMC",
      "kind": "packaging"
    },
    {
      "mpn": "LN4890MME-GMD",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-28T17:42:54.219Z"
}