SD6824D

{
  "schema_version": 1,
  "type": "component",
  "slug": "sd6824d",
  "title": "SD6824D",
  "brief": "Hangzhou Silan Microelectronics LED Drivers, DIP-7. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "led drivers",
    "sd6824d"
  ],
  "component": {
    "mpn": "SD6824D",
    "manufacturer": "Hangzhou Silan Microelectronics",
    "package": "DIP-7",
    "pin_count": 7,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894604171087872",
    "parts": {
      "symbol": "sd6824d.kicad_sym",
      "footprint": "sd6824d.kicad_mod",
      "model_3d": "sd6824d-etched.glb",
      "model_3d_plain": "sd6824d.glb",
      "model_3d_step": "sd6824d-etched.step",
      "model_3d_step_plain": "sd6824d.step",
      "lbr": "sd6824d.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin. Common return for the control IC and internal MOSFET source reference."
      },
      {
        "number": "2",
        "name": "SOURCE",
        "type": "passive",
        "description": "Source terminal of the internal power MOSFET, and the current-sense sampling pin for the control chip. Connect an external current sense resistor Rsen from this pin to GND to program peak current (Ipk = Vcscc/Rsen, Vcscc ~= 0.2 V)."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating; do not use to route traces."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback voltage detection input. Sensed via a resistor divider from the transformer auxiliary winding: enables zero-current detection (ZCD triggers when FB falls below 0.3 V to turn the MOSFET on) and LED open/overvoltage protection (trips when FB exceeds VFBOVP ~= 1.70 V, min 1.61 V, max 1.79 V). Absolute maximum on this analog input: -0.3 V to 5.5 V."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Chip supply pin. Charged by an external startup resistor from the AC input to the VCC capacitor at power-up; once VCC reaches VCCON (typ 18 V, 15.5-20 V), the IC starts and is subsequently maintained above VCCOFF (typ 7.7 V, 6.7-8.7 V) by the transformer auxiliary winding. Operating range 9-25 V; absolute maximum -0.3 to 26.5 V. Startup current ~20 uA at VCC=14 V; operating current ~0.6 mA typical for SD6824D."
      },
      {
        "number": "6",
        "name": "DRAIN",
        "type": "passive",
        "description": "Drain of the internal 650 V power MOSFET. Connects to the primary winding of the flyback transformer. For SD6824D: BVDSS = 650 V, RDS(on) typ 2.3 Ω (max 2.7 Ω) at VGS=10 V/ID=2 A, continuous ID = 4 A (Tamb=25°C), pulsed IDM = 16 A, EAS = 202 mJ. Pin 6 and pin 7 are internally tied together to share drain current."
      },
      {
        "number": "7",
        "name": "DRAIN",
        "type": "passive",
        "description": "Drain of the internal 650 V power MOSFET (paralleled with pin 6). Both drain pins must be tied together on the PCB and connected to the transformer primary; the parallel connection reduces conduction resistance and improves thermal dissipation."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894604171087872",
        "pages": 11,
        "sha256": "1086a652b6cb3661",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 7,
        "described": 7,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sd6824d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.62,
          10.16,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.127,
        "footprint_binding": "identity",
        "sha256": "f90bd1fa5f010bc999f2dd88ca613ee145644353e91e90fc2564259080330cbf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sd6824d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.62,
          10.16,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.127,
        "footprint_binding": "identity",
        "sha256": "6b445dd51b389a189c7399d9c353ec1361728a77e6799c6eaee96329d6591916",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Hangzhou Silan Microelectronics",
      "Package": "DIP-7",
      "Category": "LED Drivers",
      "Pins": "7"
    }
  },
  "variants": [
    {
      "mpn": "SD6824DD",
      "kind": "packaging"
    },
    {
      "mpn": "SD6824DD (SD6827D)",
      "kind": "packaging"
    },
    {
      "mpn": "SD6824DS",
      "kind": "packaging"
    },
    {
      "mpn": "SD6824DSTR",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sd6824d"
  ],
  "discovery_pitch": "SD6824D (Hangzhou Silan Microelectronics) 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",
    "sd6824d.kicad_sym",
    "sd6824d.kicad_mod",
    "sd6824d.glb",
    "sd6824d.step",
    "sd6824d.lbr",
    "docs/hero.png",
    "docs/sd6824d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T05:37:24.715Z"
}