LM4670SD

{
  "slug": "lm4670sd",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Audio Amplifiers, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "amplifiers-comparators",
    "lm4670sd",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "lm4670sd.kicad_mod",
    "lm4670sd.glb",
    "lm4670sd.step",
    "lm4670sd.lbr",
    "docs/hero.png",
    "docs/lm4670sd-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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  "component": {
    "mpn": "LM4670SD",
    "manufacturer": "Texas Instruments",
    "package": "SON-8-EP(3x3)",
    "pin_count": 9,
    "category": "Amplifiers/Comparators",
    "subcategory": "Audio Amplifiers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm4670",
    "parts": {
      "symbol": "lm4670sd.kicad_sym",
      "footprint": "lm4670sd.kicad_mod",
      "model_3d": "lm4670sd-hero.glb",
      "model_3d_plain": "lm4670sd.glb",
      "model_3d_step": "lm4670sd-etched.step",
      "model_3d_step_plain": "lm4670sd.step",
      "lbr": "lm4670sd.lbr"
    },
    "distributor_links": {
      "lcsc": "C131968",
      "digikey": "2156-LM4670SD-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-03T03:17:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-LM4670SD-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SHUTDOWN",
        "type": "input",
        "description": "Active-low shutdown input; logic low (GND) enables shutdown, VSDIL 0.4V max and VSDIH 1.4V min, with an internal 300kΩ resistor to GND so a floating pin shuts the device down."
      },
      {
        "number": "2",
        "name": "-IN",
        "type": "input",
        "description": "Inverting audio input; gain is set by AV = 2*150kΩ/Ri with the external input resistor Ri."
      },
      {
        "number": "3",
        "name": "+IN",
        "type": "input",
        "description": "Non-inverting audio input; gain is set by AV = 2*150kΩ/Ri with the external input resistor Ri."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, the reference for all voltages."
      },
      {
        "number": "5",
        "name": "VO1",
        "type": "output",
        "description": "Switching BTL output 1 that drives the speaker load directly without an output filter."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, the reference for all voltages."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage input, 2.4V to 5.5V operating range, bypassed with a 1µF capacitor placed close to the pin."
      },
      {
        "number": "8",
        "name": "VO2",
        "type": "output",
        "description": "Switching BTL output 2 that drives the speaker load directly without an output filter."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed thermal pad that must be soldered to the PCB for thermal and mechanical performance; the datasheet does not state its net connection."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin number to signal mapping not explicitly shown in provided datasheet text. Figure 3 (PAGE 2) show; Exposed pad (EP) for WSON-8 package is typically connected to GND but not explicitly confirmed in pr",
          "exposed pad 9 added from the footprint"
        ],
        "pages_sent": 6,
        "cost_usd": 0.2628,
        "at": "2026-10-03T03:16:51"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm4670",
        "pages": 26,
        "sha256": "0068144b7e44b3d9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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}