TC642BEOA

{
  "slug": "tc642beoa",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Brushless DC (BLDC) Motor Driver, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "motor driver ics",
    "tc642beoa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tc642beoa.kicad_sym",
    "tc642beoa.kicad_mod",
    "tc642beoa.glb",
    "tc642beoa.step",
    "tc642beoa.lbr",
    "docs/hero.png",
    "docs/tc642beoa-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tc642beoa-hero.glb",
    "tc642beoa-hero.overlay.json",
    "tc642beoa-etched.glb"
  ],
  "component": {
    "mpn": "TC642BEOA",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Motor Driver ICs",
    "subcategory": "Brushless DC (BLDC) Motor Driver",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8558359981776408576",
    "parts": {
      "symbol": "tc642beoa.kicad_sym",
      "footprint": "tc642beoa.kicad_mod",
      "model_3d": "tc642beoa-hero.glb",
      "model_3d_plain": "tc642beoa-etched.glb",
      "model_3d_step": "tc642beoa-etched.step",
      "model_3d_step_plain": "tc642beoa.step",
      "lbr": "tc642beoa.lbr"
    },
    "distributor_links": {
      "lcsc": "C145620",
      "digikey": "TC642BEOA-ND",
      "mouser": "579-TC642BEOA"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T05:16:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TC642BEOA-ND",
        "status": "found",
        "lifecycle": "Last Time Buy"
      },
      "mouser": {
        "pn": "579-TC642BEOA",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Analog input where the thermistor or other voltage-output temperature sensor connects; 1.20V to 2.60V (typical) drives 0% to 100% VOUT duty cycle."
      },
      {
        "number": "2",
        "name": "CF",
        "type": "output",
        "description": "Positive terminal of the PWM ramp generator timing capacitor; 1.0 µF is recommended for 30 Hz PWM operation."
      },
      {
        "number": "3",
        "name": "VMIN",
        "type": "input",
        "description": "Analog input from an external resistor divider that sets minimum fan speed (1.20V to 2.60V typical = 0% to 100% minimum duty cycle), and pulling 0 ≤ VMIN ≤ VSHDN forces shutdown."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "SENSE",
        "type": "input",
        "description": "Analog input that detects fan current pulses across the sense resistor, with the absence of pulses indicating a fan fault condition (threshold 50 to 90 mV with respect to GND)."
      },
      {
        "number": "6",
        "name": "FAULT",
        "type": "output",
        "description": "Digital open-drain output that goes low on a fan fault (held until 16 pulses are detected at SENSE in a 32/f period) and, on the TC642B, when VIN reaches the 2.62V (typical) over-temperature threshold."
      },
      {
        "number": "7",
        "name": "VOUT",
        "type": "output",
        "description": "Active-high complementary PWM output that drives an external NPN base resistor or N-channel MOSFET gate, and is held continuously on during a fan fault."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply input referenced to GND, specified at 3.0V to 5.5V, which may be independent of the fan supply."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-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-number-to-name mapping is given for the MSOP, PDIP and SOIC packages together; the excerpt d; The excerpt contains only the PDIP package dimension drawing (page 27); no SOIC (150 mil) outline or; The ordering code / orderable suffix for the SOIC-8 variant of TC642B is not in the provided pages; "
        ],
        "pages_sent": 14,
        "cost_usd": 0.0707,
        "at": "2026-10-19T05:16:19"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8558359981776408576",
        "pages": 34,
        "sha256": "0f0a557397754060",
        "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": "tc642beoa.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tc642beoa-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bef76daad38a7965e8ab680d109763f60c6b9c8573680482beae6c8c8f15187c",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}