OC6701B

{
  "schema_version": 1,
  "type": "component",
  "slug": "oc6701b",
  "title": "OC6701B",
  "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",
    "oc6701b"
  ],
  "component": {
    "mpn": "OC6701B",
    "manufacturer": "OCX",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d65e4a8870e77be56b75418fdb6482ac.pdf",
    "parts": {
      "symbol": "oc6701b.kicad_sym",
      "footprint": "oc6701b.kicad_mod",
      "model_3d": "oc6701b-etched.glb",
      "model_3d_plain": "oc6701b.glb",
      "model_3d_step": "oc6701b-etched.step",
      "model_3d_step_plain": "oc6701b.step",
      "lbr": "oc6701b.lbr"
    },
    "distributor_links": {
      "lcsc": "C879356"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground return. Connect to system ground."
      },
      {
        "number": "2",
        "name": "EN",
        "type": "input",
        "description": "Chip enable, active high. Logic-high threshold >= 0.4*VDD, logic-low <= 0.8V. Can be driven with a PWM signal for LED dimming."
      },
      {
        "number": "3",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output / loop-compensation node. Connect an external R-C network to ground to set frequency compensation of the current loop."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Output LED-current feedback sense input. Regulates to VFB = 250mV (typ, 240-260mV) across an external sense resistor RFB; ILED = 0.25V / RFB."
      },
      {
        "number": "5",
        "name": "DRV",
        "type": "output",
        "description": "Gate-drive output for the external N-channel power MOSFET. Typical drive level 5.5V; rise/fall ~50ns into 500pF. Choose a MOSFET with low RDSON at VGS=5.5V and Vth <= 2.5V."
      },
      {
        "number": "6",
        "name": "CS",
        "type": "input",
        "description": "Switch/inductor peak-current sense input for cycle-by-cycle peak current control and input over-current protection. Trip threshold VCS_TH = 250mV (typ, 240-260mV); IPK <= 0.25V / RCS."
      },
      {
        "number": "7",
        "name": "TOFF",
        "type": "input",
        "description": "Fixed off-time programming pin. TOFF = 0.51 * 150k * (COFF + 7.3pF) + 61ns via external capacitor COFF (recommend 22-33pF or larger). Left open, internal off-time defaults to 620ns."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip supply pin, fed from VIN through an external dropper resistor RVDD. Internal shunt regulator clamps VDD to 5.5V (IVDD < 10mA); UVLO rising 2.6V with 0.3V hysteresis. Typical operating current 1.3mA at 200kHz, 200uA in standby."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/d65e4a8870e77be56b75418fdb6482ac.pdf",
        "pages": 8,
        "sha256": "bc5762ea6dc6d18a",
        "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": "oc6701b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "oc6701b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f61caf2aaa8e0ce00408754795566d67ddd35709f51121d6b51f51dabd4dca36",
        "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": [
    "oc6701b"
  ],
  "discovery_pitch": "OC6701B (OCX) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "oc6701b.kicad_sym",
    "oc6701b.kicad_mod",
    "oc6701b.glb",
    "oc6701b.step",
    "oc6701b-etched.step",
    "oc6701b.lbr",
    "docs/hero.png",
    "docs/oc6701b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T03:29:59.087Z"
}