ME8109BD8G

{
  "slug": "me8109bd8g",
  "version": "0.1.0",
  "type": "component",
  "description": "MICRONE AC-DC Controllers & Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "me8109bd8g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "me8109bd8g.kicad_sym",
    "me8109bd8g.kicad_mod",
    "me8109bd8g.glb",
    "me8109bd8g.step",
    "me8109bd8g.lbr",
    "docs/hero.png",
    "docs/me8109bd8g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "me8109bd8g-hero.glb",
    "me8109bd8g-hero.overlay.json",
    "me8109bd8g-etched.glb"
  ],
  "component": {
    "mpn": "ME8109BD8G",
    "manufacturer": "MICRONE",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0726ca6fb8b398559211e9b5a98e7efa.pdf",
    "parts": {
      "symbol": "me8109bd8g.kicad_sym",
      "footprint": "me8109bd8g.kicad_mod",
      "model_3d": "me8109bd8g-hero.glb",
      "model_3d_plain": "me8109bd8g-etched.glb",
      "model_3d_step": "me8109bd8g-etched.step",
      "model_3d_step_plain": "me8109bd8g.step",
      "lbr": "me8109bd8g.lbr"
    },
    "distributor_links": {
      "lcsc": "C2927403"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:37:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; the datasheet gives no function for this pin."
      },
      {
        "number": "2",
        "name": "RT",
        "type": "bidirectional",
        "description": "Dual-function pin connected through an NTC resistor to ground for over-temperature shutdown/latch control (100 µA source, OTP threshold 1 V), or through a Zener to VDD for adjustable over-voltage protection."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Voltage feedback pin, connected to a photo-coupler to control the duty cycle (abs max -0.3 to 7 V)."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip DC power supply pin, recommended 10 to 30 V, UVLO on 9 V and off 14 V typical, abs max 40 V."
      },
      {
        "number": "6",
        "name": "SENSE",
        "type": "input",
        "description": "Current sense input connected to the MOSFET current sensing resistor node (abs max -0.3 to 7 V)."
      },
      {
        "number": "7",
        "name": "DRAIN",
        "type": "passive",
        "description": "Drain of the internal high-voltage MOSFET, rated 600 V for ME8109B (pins 7 and 8 are common)."
      },
      {
        "number": "8",
        "name": "DRAIN",
        "type": "passive",
        "description": "Drain of the internal high-voltage MOSFET, rated 600 V for ME8109B (pins 7 and 8 are common)."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 1 is listed as NC with no description; typed as unconnected.; RT is dual-function (analog current-source output / OVP input); bidirectional is a best-fit type."
        ],
        "pages_sent": 11,
        "cost_usd": 0.0647,
        "at": "2026-10-23T12:37:17"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/0726ca6fb8b398559211e9b5a98e7efa.pdf",
        "pages": 11,
        "sha256": "c44aa3d071f80a62",
        "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"
    },
    "models_3d": [
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        "file": "me8109bd8g.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,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "me8109bd8g-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,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e918b72e643dd49f8067bda1565357e834be2a6e0763245554ece6750de3f156",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}