SD6835

{
  "schema_version": 1,
  "type": "component",
  "slug": "sd6835",
  "title": "SD6835",
  "brief": "Hangzhou Silan Microelectronics AC-DC Controllers & Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management ics",
    "sd6835",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SD6835",
    "manufacturer": "Hangzhou Silan Microelectronics",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/08d91ad94228029521a3f64ff64ed6c8.pdf",
    "parts": {
      "symbol": "sd6835.kicad_sym",
      "footprint": "sd6835.kicad_mod",
      "model_3d": "sd6835-hero.glb",
      "model_3d_plain": "sd6835-etched.glb",
      "model_3d_step": "sd6835-etched.step",
      "model_3d_step_plain": "sd6835.step",
      "lbr": "sd6835.lbr"
    },
    "distributor_links": {
      "lcsc": "C190635"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T06:04:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "2",
        "name": "CS",
        "type": "input",
        "description": "Peak current sense pin; external resistor RCS sets the peak current limit as VCSMAX/RCS, with VCS limited to -0.3~2 V."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply pin; start threshold 16 V typ, stop threshold 8.5 V typ, overvoltage protection at 24.5 V typ, absolute maximum 28 V."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "bidirectional",
        "description": "Feedback input pin (I/O); voltage range -0.3~7 V, overload shutdown at 4.3 V typ after 40 ms typ delay."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; recommended to connect to the Drain pin for better heat dissipation."
      },
      {
        "number": "6",
        "name": "Drain",
        "type": "passive",
        "description": "Drain of the internal high-voltage MOSFET (650 V min breakdown), shorted to pins 7 and 8."
      },
      {
        "number": "7",
        "name": "Drain",
        "type": "passive",
        "description": "Drain of the internal high-voltage MOSFET (650 V min breakdown), shorted to pins 6 and 8."
      },
      {
        "number": "8",
        "name": "Drain",
        "type": "passive",
        "description": "Drain of the internal high-voltage MOSFET (650 V min breakdown), shorted to pins 6 and 7."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet lists Drain pin I/O as 'O'; typed as passive since it is a power MOSFET drain. FB listed a"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0785,
        "at": "2026-10-23T06:03:23"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/08d91ad94228029521a3f64ff64ed6c8.pdf",
        "pages": 9,
        "sha256": "69b5fa57b87bf1af",
        "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"
    },
    "models_3d": [
      {
        "file": "sd6835.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sd6835-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": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "74e73eb71edce6a6a4c4d19c187521cd8cc9705373365ab27b04a1dee53b5197",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Hangzhou Silan Microelectronics",
      "Package": "DIP-8",
      "Category": "Power Management ICs",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "69b5fa57b87bf1af8913a9334a04f5ed199acf9783260035970f768805923218",
      "rows": [
        {
          "name": "Drain-Gate Voltage",
          "symbol": "VDGR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 650,
          "conditions": "RGS=1MΩ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate-Source Voltage",
          "symbol": "VGS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain Current Pulse",
          "symbol": "IDM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Pulse width limited by max junction temperature",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous Drain Current",
          "symbol": "ID",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "Tamb=25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Single Pulse Avalanche Energy",
          "symbol": "EAS",
          "kind": "absolute_maximum",
          "unit": "mJ",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "L=51mH, TJ=25°C(start)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Voltage",
          "symbol": "VCC,MAX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 28,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Feedback input voltage",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak current sense voltage",
          "symbol": "VCS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Allowable Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 6.3,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Ambient thermal resistance",
          "symbol": "θja",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 77,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Surface thermal resistance",
          "symbol": "θjc",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TORG",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -25,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Drain-Source Breakdown Voltage",
          "symbol": "BVDSS",
          "kind": "electrical",
          "unit": "V",
          "min": 650,
          "typ": null,
          "max": null,
          "conditions": "VGS=0V, ID=50µA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Zero Gate Voltage Drain Current",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VDS=650V, VGS=0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Zero Gate Voltage Drain Current",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "VDS=480V, VGS=0V Tamb=125°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Static Drain-Source On Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "Ω",
          "min": 1.1,
          "typ": 1.6,
          "max": 2.1,
          "conditions": "VGS=10V, ID=3A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Capacitance",
          "symbol": "CISS",
          "kind": "electrical",
          "unit": "pF",
          "min": 520,
          "typ": 700,
          "max": 950,
          "conditions": "VGS=0V, VDS=25V, f=1MHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Capacitance",
          "symbol": "COSS",
          "kind": "electrical",
          "unit": "pF",
          "min": 50,
          "typ": 86,
          "max": 120,
          "conditions": "VGS=0V, VDS=25V, f=1MHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reverse Transfer Capacitance",
          "symbol": "CRSS",
          "kind": "electrical",
          "unit": "pF",
          "min": 1.8,
          "typ": 3.5,
          "max": 6.5,
          "conditions": "VGS=0V, VDS=25V, f=1MHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Turn On Delay Time",
          "symbol": "TD(ON)",
          "kind": "timing",
          "unit": "ns",
          "min": 13,
          "typ": 20,
          "max": 26,
          "conditions": "VDD=0.5BVDSS, ID=25mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Rise Time",
          "symbol": "TR",
          "kind": "timing",
          "unit": "ns",
          "min": 37,
          "typ": 51,
          "max": 68,
          "conditions": "VDD=0.5BVDSS, ID=25mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Turn Off Delay Time",
          "symbol": "TD(OFF)",
          "kind": "timing",
          "unit": "ns",
          "min": 26,
          "typ": 37,
          "max": 50,
          "conditions": "VDD=0.5BVDSS, ID=25mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Fall Time",
          "symbol": "TF",
          "kind": "timing",
          "unit": "ns",
          "min": 21,
          "typ": 32,
          "max": 44,
          "conditions": "VDD=0.5BVDSS, ID=25mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Start Threshold Voltage",
          "symbol": "VSTART",
          "kind": "electrical",
          "unit": "V",
          "min": 14.5,
          "typ": 16,
          "max": 17,
          "conditions": "VCC=12V, Tamb=25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Stop Threshold Voltage",
          "symbol": "VSTOP",
          "kind": "electrical",
          "unit": "V",
          "min": 7.5,
          "typ": 8.5,
          "max": 9.5,
          "conditions": "VCC=12V, Tamb=25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Max. Oscillate Frequency",
          "symbol": "fOSCMAX",
          "kind": "electrical",
          "unit": "KHz",
          "min": 61,
          "typ": 67,
          "max": 73,
          "conditions": "VFB=3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Min. Oscillate Frequency",
          "symbol": "fOSCMIN",
          "kind": "electrical",
          "unit": "KHz",
          "min": 20,
          "typ": 25,
          "max": 30,
          "conditions": "VBURL<VFB<VBURH",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Frequency jitter",
          "symbol": "fMOD",
          "kind": "electrical",
          "unit": "KHz",
          "min": 1.5,
          "typ": 2.5,
          "max": 3.5,
          "conditions": "Oscillate frequency is the maximum; printed ±",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Frequency Change With Temperature",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "%",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "25°C≤Tamb≤+85°C; printed ±",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum Duty cycle",
          "symbol": "DMAX",
          "kind": "electrical",
          "unit": "%",
          "min": 72,
          "typ": 77,
          "max": 82,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "MAX. Feedback Source Current",
          "symbol": "IFBMAX",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.25,
          "typ": 0.35,
          "max": 0.45,
          "conditions": "VFB=0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Feedback Voltage (over load protection)",
          "symbol": "VSD",
          "kind": "electrical",
          "unit": "V",
          "min": 3.8,
          "typ": 4.3,
          "max": 4.8,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Feedback Delay Time",
          "symbol": "TSD",
          "kind": "timing",
          "unit": "ms",
          "min": 30,
          "typ": 40,
          "max": 50,
          "conditions": "FB is increased to 5V from 0V instantly",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Delay Current",
          "symbol": "IDELAY",
          "kind": "electrical",
          "unit": "µA",
          "min": 3,
          "typ": 6,
          "max": 9,
          "conditions": "VFB=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Max. value of CS",
          "symbol": "VCSMAX",
          "kind": "electrical",
          "unit": "V",
          "min": 0.7,
          "typ": 0.9,
          "max": 1.1,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Peak current",
          "symbol": "IOVER",
          "kind": "electrical",
          "unit": "A",
          "min": 2,
          "typ": 2.2,
          "max": 2.4,
          "conditions": "Maximum inductor current",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Burst Mode High Voltage",
          "symbol": "VBURH",
          "kind": "electrical",
          "unit": "V",
          "min": 0.4,
          "typ": 0.5,
          "max": 0.6,
          "conditions": "FB voltage",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Burst Mode Low Voltage",
          "symbol": "VBURL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.25,
          "typ": 0.35,
          "max": 0.45,
          "conditions": "FB voltage",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Overvoltage Protection",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "V",
          "min": 23,
          "typ": 24.5,
          "max": 26,
          "conditions": "VCC voltage",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Over Temperature Protection",
          "symbol": "TOTP",
          "kind": "electrical",
          "unit": "°C",
          "min": 125,
          "typ": 150,
          "max": 175,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Leading-edge Blanking Time",
          "symbol": "TLEB",
          "kind": "timing",
          "unit": "ns",
          "min": 200,
          "typ": 350,
          "max": 500,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Start Current",
          "symbol": "ISTART",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 4,
          "max": 20,
          "conditions": "VCC increases from 0V to 12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "ISTATIC",
          "kind": "electrical",
          "unit": "mA",
          "min": 1,
          "typ": 1.5,
          "max": 2,
          "conditions": "VCC=12V, VFB=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Current",
          "symbol": "IOP",
          "kind": "electrical",
          "unit": "mA",
          "min": 1.2,
          "typ": 2.2,
          "max": 3.2,
          "conditions": "VCC=12V, VFB=3V",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sd6835"
  ],
  "discovery_pitch": "SD6835 (Hangzhou Silan Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sd6835.kicad_sym",
    "sd6835.kicad_mod",
    "sd6835.glb",
    "sd6835.step",
    "sd6835.lbr",
    "docs/hero.png",
    "docs/sd6835-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sd6835-hero.glb",
    "sd6835-hero.overlay.json",
    "sd6835-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}