OC5738

{
  "schema_version": 1,
  "type": "component",
  "slug": "oc5738",
  "title": "OC5738",
  "brief": "OCX LED Drivers, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led-drv",
    "oc5738"
  ],
  "component": {
    "mpn": "OC5738",
    "manufacturer": "OCX",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "LED-drv",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0a34c4fde2a76d25e08282225407f9a7.pdf",
    "parts": {
      "symbol": "oc5738.kicad_sym",
      "footprint": "oc5738.kicad_mod",
      "model_3d": "oc5738-etched.glb",
      "model_3d_plain": "oc5738.glb",
      "model_3d_step": "oc5738-etched.step",
      "model_3d_step_plain": "oc5738.step",
      "lbr": "oc5738.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground return. Connect to system ground with a wide, short trace to the current-sense resistor RCS."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip supply input. Operating range 8V-90V; UVLO rising 6.5V with 0.5V hysteresis. Bypass with a low-ESR ceramic capacitor placed close to VDD and GND."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. Leave floating."
      },
      {
        "number": "4",
        "name": "SW",
        "type": "output",
        "description": "Switching node, drain of the internal 90V power MOSFET. Connects to the buck inductor / freewheel diode. Exposed thermal pad is internally tied to SW."
      },
      {
        "number": "5",
        "name": "CS",
        "type": "input",
        "description": "Inductor current sense input. Average voltage regulated to 200 mV typ (192-208 mV). Output current set by ILED = 0.2 / RCS. Max pin voltage 6.5V."
      },
      {
        "number": "6",
        "name": "HL",
        "type": "input",
        "description": "High/Low brightness select. Float = full brightness (100% ILED). Pull to VDD via resistor to enter half-brightness mode (50% ILED). Internal 80 kΩ pull-down and 5.6V Zener clamp; limit ZENER current to <1 mA when sizing RHL."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. Leave floating."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. Leave floating."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "output",
        "description": "Exposed thermal pad, internally connected to SW (switching node). Solder to a copper island tied to SW for heat dissipation; do NOT connect to GND."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/0a34c4fde2a76d25e08282225407f9a7.pdf",
        "pages": 6,
        "sha256": "97a35a169100bb39",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "oc5738.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "oc5738-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dbe5a4f181399dcfeb85c98149371674b93605314bffce4b1362fbb0e8bfa677",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "OCX",
      "Package": "ESOP-8",
      "Category": "LED-drv",
      "Pins": "9"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "oc5738"
  ],
  "discovery_pitch": "OC5738 (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",
    "oc5738.kicad_sym",
    "oc5738.kicad_mod",
    "oc5738.glb",
    "oc5738.step",
    "oc5738.lbr",
    "docs/hero.png",
    "docs/oc5738-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "oc5738-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T03:29:50.548Z"
}