MD9927

{
  "slug": "md9927",
  "version": "0.1.0",
  "type": "component",
  "description": "Shanghai Mingda Microelectronics Motor Driver ICs, WDFN-8-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "md9927",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "md9927.kicad_sym",
    "md9927.kicad_mod",
    "md9927.glb",
    "md9927.step",
    "md9927.lbr",
    "docs/hero.png",
    "docs/md9927-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "md9927-hero.glb",
    "md9927-hero.overlay.json",
    "md9927-etched.glb"
  ],
  "component": {
    "mpn": "MD9927",
    "manufacturer": "Shanghai Mingda Microelectronics",
    "package": "WDFN-8-EP(2x2)",
    "pin_count": 9,
    "category": "Power Management ICs",
    "subcategory": "Motor Driver ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/51228a5033d20d1b3b1bd0b6b9b3b6e4.pdf",
    "parts": {
      "symbol": "md9927.kicad_sym",
      "footprint": "md9927.kicad_mod",
      "model_3d": "md9927-hero.glb",
      "model_3d_plain": "md9927-etched.glb",
      "model_3d_step": "md9927-etched.step",
      "model_3d_step_plain": "md9927.step",
      "lbr": "md9927.lbr"
    },
    "distributor_links": {
      "lcsc": "C2684662"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:09:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VM",
        "type": "power_in",
        "description": "Motor power supply, 0 to 12 V recommended, to be bypassed to GND with a 0.1 µF ceramic capacitor rated for VM."
      },
      {
        "number": "2",
        "name": "OUT1",
        "type": "output",
        "description": "Motor output that connects to the motor winding."
      },
      {
        "number": "3",
        "name": "OUT2",
        "type": "output",
        "description": "Motor output that connects to the motor winding."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground, which must be connected to ground."
      },
      {
        "number": "5",
        "name": "IN2",
        "type": "input",
        "description": "IN2 logic input controlling OUT2 (PWM interface), with an internal pulldown of about 100 kΩ."
      },
      {
        "number": "6",
        "name": "IN1",
        "type": "input",
        "description": "IN1 logic input controlling OUT1 (PWM interface), with an internal pulldown of about 100 kΩ."
      },
      {
        "number": "7",
        "name": "nSLEEP",
        "type": "input",
        "description": "Sleep mode input: logic low puts the device in low-power sleep mode, logic high gives normal operation, with an internal pulldown."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Logic power supply, 1.8 to 7 V, to be bypassed to GND with a 0.1 µF ceramic capacitor rated for VCC."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: The pin description table has a column headed 'SOIC-8' rather than DFN. The DFN2*2 and SOP8 pin diag; The DFN has a thermal pad, shown in the application diagram on page 8. The datasheet gives it no pin"
        ],
        "pages_sent": 11,
        "cost_usd": 0.08,
        "at": "2026-10-22T21:09:12"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/51228a5033d20d1b3b1bd0b6b9b3b6e4.pdf",
        "pages": 11,
        "sha256": "b265c99dba064782",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "md9927.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.02,
          2.0,
          0.75
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0cd9f7ef593981b3ddb4f777b5812b124892d53918fca6387755f24522331ff5",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "md9927-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.02,
          2.0,
          0.75
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5daf71e08cd4fb2ac7793bcb1c2c259e982caaca200c99ea0f3f096b240a74b4",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}