OC7141

{
  "schema_version": 1,
  "type": "component",
  "slug": "oc7141",
  "title": "OC7141",
  "brief": "OCX LED Drivers, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "oc7141"
  ],
  "component": {
    "mpn": "OC7141",
    "manufacturer": "OCX",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c9d6a191f9cdcffcc9aa8eb39ca964fe.pdf",
    "parts": {
      "symbol": "oc7141.kicad_sym",
      "footprint": "oc7141.kicad_mod",
      "model_3d": "oc7141-etched.glb",
      "model_3d_plain": "oc7141.glb",
      "model_3d_step": "oc7141-etched.step",
      "model_3d_step_plain": "oc7141.step",
      "lbr": "oc7141.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground reference. Connect to system ground and route the CS sense-resistor return trace short and wide to this pin to minimize output-current error."
      },
      {
        "number": "2",
        "name": "CS",
        "type": "input",
        "description": "LED current-set pin. Sense voltage V_CS is regulated to a typical 100 mV (96-104 mV); output current I_LED = 100 mV / R_CS. Use a 1% resistor for accuracy."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip supply, 2.5 V to 6 V. Bypass with 1-4.7 µF close to the pin. For higher rail voltages, clamp with an external Zener so VDD stays ≤ 6 V (supply rail extendable to 400 V+). Quiescent current typ. 60 µA."
      },
      {
        "number": "4",
        "name": "DRV",
        "type": "output",
        "description": "Gate-drive output for the external NMOS pass transistor. The internal error amplifier modulates DRV so that V_CS = 100 mV, regulating LED current from 10 mA up to 3 A."
      },
      {
        "number": "5",
        "name": "DIM",
        "type": "input",
        "description": "PWM dimming input. Logic high (≥0.7·VDD) enables normal LED output; logic low (≤0.3·VDD) turns the LED off. Supports PWM up to 10 kHz; ≤1 kHz recommended for best linearity."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c9d6a191f9cdcffcc9aa8eb39ca964fe.pdf",
        "pages": 6,
        "sha256": "6c0efd194ffe82d5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "oc7141.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "oc7141-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d67d9fdb5bc93987e0e1d0042fdd0fb01ff87bff1fc6c4ec5eeaa74a155d018b",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "OCX",
      "Package": "SOT-23-5",
      "Category": "LED-drv",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "oc7141"
  ],
  "discovery_pitch": "OC7141 (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",
    "oc7141.kicad_sym",
    "oc7141.kicad_mod",
    "oc7141.glb",
    "oc7141.step",
    "oc7141.lbr",
    "docs/hero.png",
    "docs/oc7141-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "oc7141-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T03:30:23.737Z"
}