main
Ray Set visibility: public 149fb79 3h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "md9927",
  "title": "MD9927",
  "brief": "Shanghai Mingda Microelectronics Motor Driver ICs, WDFN-8-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management ics",
    "md9927",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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"
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    "pins": [
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        "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)."
      }
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        "primary_model": "claude-sonnet-5-5",
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        "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"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "seat": "z = 0",
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        "footprint_binding": "identity",
        "sha256": "0cd9f7ef593981b3ddb4f777b5812b124892d53918fca6387755f24522331ff5",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
        "file": "md9927-etched.step",
        "role": "eda",
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        "origin": "footprint origin = pad-pattern centre",
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        "sha256": "5daf71e08cd4fb2ac7793bcb1c2c259e982caaca200c99ea0f3f096b240a74b4",
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  "metadata": {
    "specs": {
      "Manufacturer": "Shanghai Mingda Microelectronics",
      "Package": "WDFN-8-EP(2x2)",
      "Category": "Power Management ICs",
      "Pins": "9"
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          "conditions": "Ta=25°C",
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          "name": "Logic power-supply voltage",
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          "kind": "absolute_maximum",
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          "min": -0.3,
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          "max": 7,
          "conditions": "Ta=25°C",
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        {
          "name": "Control pin voltage IN1, IN2, nSLEEP",
          "symbol": "",
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          "name": "ESD HBM",
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          "min": -4000,
          "typ": null,
          "max": 4000,
          "conditions": "Human body model",
          "source_page": 2,
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        {
          "name": "Operating virtual junction temperature",
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          "source_page": 2,
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        {
          "name": "Logic power-supply voltage",
          "symbol": "VCC",
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          "conditions": "Ta=25°C",
          "source_page": 2,
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        {
          "name": "Logic level input voltage",
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          "conditions": "Ta=25°C",
          "source_page": 2,
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        {
          "name": "Motor peak current",
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          "kind": "recommended_operating",
          "unit": "A",
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          "typ": null,
          "max": 1.8,
          "conditions": "Ta=25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Externally applied PWM frequency",
          "symbol": "fPWM",
          "kind": "recommended_operating",
          "unit": "kHz",
          "min": 0,
          "typ": null,
          "max": 250,
          "conditions": "Ta=25°C",
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          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
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        {
          "name": "VM operating voltage",
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          "min": 0,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VM operating supply current",
          "symbol": "IVM",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 30,
          "max": 100,
          "conditions": "VM = 5 V; VCC = 3 V; No PWM",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VM operating supply current",
          "symbol": "IVM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.45,
          "max": 1.5,
          "conditions": "VM = 5 V; VCC = 3 V; 50 kHz PWM",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "VM sleep mode supply current",
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          "typ": 30,
          "max": 90,
          "conditions": "VM = 5 V; VCC = 3 V; nSLEEP = 0",
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        {
          "name": "VCC operating voltage",
          "symbol": "VCC",
          "kind": "electrical",
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          "min": 1.8,
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        {
          "name": "VCC operating supply current",
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          "min": null,
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          "max": 0.5,
          "conditions": "VM = 5 V; VCC = 3 V; No PWM",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC operating supply current",
          "symbol": "IVCC",
          "kind": "electrical",
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          "min": null,
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          "max": 1.5,
          "conditions": "VM = 5 V; VCC = 3 V; 50 kHz PWM",
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        {
          "name": "VCC sleep mode supply current",
          "symbol": "IVCCQ",
          "kind": "electrical",
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          "min": null,
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          "conditions": "VM = 5 V; VCC = 3 V; nSLEEP = 0",
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        {
          "name": "Input logic-low voltage falling threshold",
          "symbol": "VIL",
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          "max": 0.38,
          "conditions": "values are multiples of VCC (0.25 × VCC, 0.38 × VCC)",
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          "name": "Input logic-high voltage rising threshold",
          "symbol": "VIH",
          "kind": "electrical",
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          "conditions": "values are multiples of VCC (0.46 × VCC, 0.5 × VCC)",
          "source_page": 3,
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        {
          "name": "Input logic low current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "VIN = 0 V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Input logic high current, IN1 or IN2",
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          "kind": "electrical",
          "unit": "µA",
          "min": null,
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          "max": 60,
          "conditions": "VIN = 3.3 V, IN1 or IN2 pin",
          "source_page": 3,
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        {
          "name": "Input logic high current, nSLEEP",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VIN = 3.3 V, nSLEEP pin",
          "source_page": 3,
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        {
          "name": "Off-state leakage current",
          "symbol": "",
          "kind": "electrical",
          "unit": "nA",
          "min": -200,
          "typ": null,
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          "conditions": "VOUT = 0 V",
          "source_page": 3,
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        },
        {
          "name": "HS + LS FET on-resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "VM = 5 V; VCC = 3 V; IO = 800 mA; TJ = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent protection trip level",
          "symbol": "IOCP",
          "kind": "electrical",
          "unit": "A",
          "min": 1.9,
          "typ": null,
          "max": 3.5,
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        },
        {
          "name": "VCC undervoltage lockout, falling",
          "symbol": "VUVLO",
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          "min": null,
          "typ": 1.7,
          "max": null,
          "conditions": "VCC falling",
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        {
          "name": "VCC undervoltage lockout, rising",
          "symbol": "VUVLO",
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          "unit": "V",
          "min": null,
          "typ": 1.8,
          "max": null,
          "conditions": "VCC rising",
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          "source": "datasheet"
        },
        {
          "name": "Input logic hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.08,
          "max": null,
          "conditions": "0.08 × VCC",
          "source_page": 3,
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        {
          "name": "Pulldown resistance",
          "symbol": "RPD",
          "kind": "electrical",
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          "min": null,
          "typ": 100,
          "max": null,
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          "source_page": 3,
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        },
        {
          "name": "Overcurrent deglitch time",
          "symbol": "tDEG",
          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": 1,
          "max": null,
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          "source_page": 3,
          "source": "datasheet"
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          "name": "Overcurrent retry time",
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          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 3,
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          "name": "Thermal shutdown temperature",
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          "kind": "electrical",
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          "min": null,
          "typ": 170,
          "max": null,
          "conditions": "Die temperature TJ",
          "source_page": 3,
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        {
          "name": "Output enable time",
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          "source_page": 4,
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        {
          "name": "Delay time, INx high to OUTx high",
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          "source_page": 4,
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          "max": 160,
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          "source_page": 4,
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          "name": "Output rise time",
          "symbol": "t5",
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          "min": 30,
          "typ": null,
          "max": 188,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Output fall time",
          "symbol": "t6",
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          "min": 30,
          "typ": null,
          "max": 188,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
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    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "MD9927 (Shanghai Mingda Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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}