main
Ray Set visibility: public 7071302 8d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "sdh8635",
  "title": "SDH8635",
  "brief": "Hangzhou Silan Microelectronics AC-DC Controllers And 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 (pmic)",
    "sdh8635",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SDH8635",
    "manufacturer": "Hangzhou Silan Microelectronics",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911055859036160",
    "parts": {
      "symbol": "sdh8635.kicad_sym",
      "footprint": "sdh8635.kicad_mod",
      "model_3d": "sdh8635-hero.glb",
      "model_3d_plain": "sdh8635-etched.glb",
      "model_3d_step": "sdh8635-etched.step",
      "model_3d_step_plain": "sdh8635.step",
      "lbr": "sdh8635.lbr"
    },
    "distributor_links": {
      "lcsc": "C250751"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T06:03:31Z",
      "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 reference pin for the controller and the primary-side circuit."
      },
      {
        "number": "2",
        "name": "CS",
        "type": "input",
        "description": "Current sense input for the cycle-by-cycle peak current limit; the limit starts at 0.45 V at D=0 and clamps at 0.7 V, with absolute maximum voltage of -0.3 V to 7 V."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin that receives high-voltage start-up charging (3.5 mA) and runs the controller; it starts at 16.5 V typical, stops at 8.9 V, has overvoltage protection at 25.5 V, and VCCMAX is 28 V."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Feedback input that sets the PWM, PFM and burst-mode operating points and the overload trigger at 4.45 V; its absolute maximum voltage is -0.3 V to 7 V and its input impedance is 50 kΩ typical."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection; the pin is left floating."
      },
      {
        "number": "6",
        "name": "DRAIN",
        "type": "bidirectional",
        "description": "Drain of the integrated power MOSFET, rated for 650 V BVDSS with 7.0 A continuous drain current at Tamb=25°C and 20 A pulsed current."
      },
      {
        "number": "7",
        "name": "DRAIN",
        "type": "bidirectional",
        "description": "Drain of the integrated power MOSFET, rated for 650 V BVDSS with 7.0 A continuous drain current at Tamb=25°C and 20 A pulsed current."
      },
      {
        "number": "8",
        "name": "DRAIN",
        "type": "bidirectional",
        "description": "Drain of the integrated power MOSFET, rated for 650 V BVDSS with 7.0 A continuous drain current at Tamb=25°C and 20 A pulsed current."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet classifies VCC as I/O (电源供电端, power supply terminal). Mapped to KiCad power_in since it is; Datasheet classifies DRAIN as I/O (功率 MOSFET 漏端). Mapped to bidirectional; no KiCad power class fits; The pin arrangement diagram (管脚排列图) on page 4 is an image with no text; pin numbers and names were t"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0424,
        "at": "2026-10-19T06:01:39"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911055859036160",
        "pages": 10,
        "sha256": "7cc42e51bf9ec903",
        "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": [
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        "file": "sdh8635.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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sdh8635-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7d30eea5ea61c45665c06c512aa3011f3f1cbe4e67e8d0c59de99d485fe4266b",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Hangzhou Silan Microelectronics",
      "Package": "DIP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7cc42e51bf9ec903ce493b318fa601ca3d30e73ccec894cb6c758e5ddcbe2e64",
      "rows": [
        {
          "name": "Drain-source breakdown voltage",
          "symbol": "BVDSS",
          "kind": "electrical",
          "unit": "V",
          "min": 650,
          "typ": null,
          "max": null,
          "conditions": "VGS=0V,ID=50A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Zero-gate-voltage drain current",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VDS=650V,VGS=0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Zero-gate-voltage drain current at high temperature",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "VDS=480V,VGS=0V,Tamb=125C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Static drain-source on-resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "",
          "min": 1.1,
          "typ": 1.6,
          "max": 2.1,
          "conditions": "VGS=10V,ID=3A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Off-state leakage current (high-voltage start pin)",
          "symbol": "IHVS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VCC=18V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC turn-on voltage",
          "symbol": "VCCSTARTUP",
          "kind": "electrical",
          "unit": "V",
          "min": 15,
          "typ": 16.5,
          "max": 18,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC turn-off voltage",
          "symbol": "VCCSTOP",
          "kind": "electrical",
          "unit": "V",
          "min": 8,
          "typ": 8.9,
          "max": 9.8,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Normal operating oscillation frequency",
          "symbol": "fOSC_NORMAL",
          "kind": "electrical",
          "unit": "KHz",
          "min": 60,
          "typ": 65,
          "max": 70,
          "conditions": "VFB=4V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Frequency jitter range",
          "symbol": "ΔfOSC_JITTER",
          "kind": "tolerance",
          "unit": "%",
          "min": -6,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Oscillation frequency change with temperature",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "25C≤Tamb≤+85C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Drain-source voltage (VDS) rating, gate-drain voltage with RGS=1M",
          "symbol": "VDGR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 650,
          "conditions": "RGS=1M",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate-source (to ground) 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 maximum junction temperature (note 1)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain continuous current",
          "symbol": "ID",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "Tamb=25C",
          "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=25C (start) (note 2)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage maximum",
          "symbol": "VCCMAX",
          "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": "Current sense input voltage",
          "symbol": "VCS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "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 ambient temperature range",
          "symbol": "Tamb",
          "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": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "sdh8635"
  ],
  "discovery_pitch": "SDH8635 (Hangzhou Silan Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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  }
}