OC6801B

{
  "schema_version": 1,
  "type": "component",
  "slug": "oc6801b",
  "title": "OC6801B",
  "brief": "OCX LED Drivers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "oc6801b"
  ],
  "component": {
    "mpn": "OC6801B",
    "manufacturer": "OCX",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5a9781438ffb719a3e09fa9c46b65b77.pdf",
    "parts": {
      "symbol": "oc6801b.kicad_sym",
      "footprint": "oc6801b.kicad_mod",
      "model_3d": "oc6801b-etched.glb",
      "model_3d_plain": "oc6801b.glb",
      "model_3d_step": "oc6801b-etched.step",
      "model_3d_step_plain": "oc6801b.step",
      "lbr": "oc6801b.lbr"
    },
    "distributor_links": {
      "lcsc": "C2988395"
    },
    "pins": [
      {
        "number": "1",
        "name": "DRV",
        "type": "output",
        "description": "Gate-drive output for the external N-channel power MOSFET. Rated up to 8 V max; typical rise/fall time ~50 ns into a 500 pF load."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip supply input. Operating range 5-40 V (absolute max 45 V). UVLO rising threshold ~4.8 V; typical operating current 2.5 mA at Fop = 200 kHz."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Enable input, active high. VIH >= 3.2 V, VIL <= 0.8 V. Absolute max 45 V; standby current ~75 uA when EN is low."
      },
      {
        "number": "4",
        "name": "ROSC",
        "type": "input",
        "description": "Oscillator frequency-set pin. External resistor to GND sets switching frequency per Fs = 4.83e7 / (ROSC + 1.08e5); ROSC=330 kΩ gives ~150 kHz. Tying pin directly to GND defaults to ~450 kHz. Absolute max 6.5 V."
      },
      {
        "number": "5",
        "name": "VFB",
        "type": "input",
        "description": "Output-voltage feedback input to the internal error amplifier. Regulation reference is 1.000 V (min 0.975 V, max 1.025 V). Set Vout via a resistor divider: Vo = (R1+R2)/R1 * VFB. Absolute max 6.5 V."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "output",
        "description": "Error-amplifier (EA) output; loop compensation node. Internally compensated, so the pin may be left floating. An external 10-100 nF cap to GND extends the soft-start time (larger cap = longer soft-start, but lower loop bandwidth). Absolute max 6.5 V."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference for supply, logic, and analog blocks."
      },
      {
        "number": "8",
        "name": "VCS",
        "type": "input",
        "description": "MOSFET switch-current sense input for cycle-by-cycle current limiting. Overcurrent threshold VCS_TH = 250 mV (typ, 240-260 mV). Peak inductor/MOSFET current is set by the sense resistor: IPK <= 0.25 V / RCS. Absolute max 6.5 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5a9781438ffb719a3e09fa9c46b65b77.pdf",
        "pages": 7,
        "sha256": "92b03432cdef301e",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "oc6801b.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "oc6801b-etched.step",
        "role": "eda",
        "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": "1384fa294091e8ffe87d2d4b37bff1c90f86616fe0076c965e8ad7bcdda6a774",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "OCX",
      "Package": "SOP-8",
      "Category": "LED-drv",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "oc6801b"
  ],
  "discovery_pitch": "OC6801B (OCX) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "oc6801b.kicad_sym",
    "oc6801b.kicad_mod",
    "oc6801b.glb",
    "oc6801b.step",
    "oc6801b-etched.step",
    "oc6801b.lbr",
    "docs/hero.png",
    "docs/oc6801b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T03:30:07.289Z"
}