SDH8322STR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sdh8322str",
  "title": "SDH8322STR",
  "brief": "Hangzhou Silan Microelectronics AC-DC Controllers and Regulators, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "sdh8322str"
  ],
  "component": {
    "mpn": "SDH8322STR",
    "manufacturer": "Hangzhou Silan Microelectronics",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "AC-DC Controllers and Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2201242200_Hangzhou-Silan-Microelectronics-SDH8322STR_C601603.pdf",
    "parts": {
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      "footprint": "sdh8322str.kicad_mod",
      "model_3d": "sdh8322str-etched.glb",
      "model_3d_plain": "sdh8322str.glb",
      "model_3d_step": "sdh8322str-etched.step",
      "model_3d_step_plain": "sdh8322str.step",
      "lbr": "sdh8322str.lbr"
    },
    "distributor_links": {
      "lcsc": "C601603"
    },
    "pins": [
      {
        "number": "1",
        "name": "SOURCE",
        "type": "power_in",
        "description": "Source of the integrated high-voltage power MOSFET. Tied together with pin 2; connects to the current-sense/return node of the switching converter (typically the return/ground of the power stage in a non-isolated buck-boost topology)."
      },
      {
        "number": "2",
        "name": "SOURCE",
        "type": "power_in",
        "description": "Second SOURCE pin of the integrated high-voltage power MOSFET. Tied with pin 1 to provide the switching converter return path."
      },
      {
        "number": "3",
        "name": "VSET",
        "type": "input",
        "description": "Output voltage setting input. Three-level select pin that programs the internal reference / feedback divider for 12 V, 15 V or 18 V output. In the reference application it is left open (12 V), tied through a resistor R1 (15 V), or configured for 18 V per the datasheet's typical application diagrams. Internal 2 V EA reference is used with the on-chip VDD divider."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip supply pin. Charged by the internal high-voltage startup current source from the DRAIN pins; then held by an external bypass/auxiliary capacitor. Protected by VDD UVLO (typ. 16.5 V start / 8.8 V stop) and VDD OVP (typ. 26 V)."
      },
      {
        "number": "5",
        "name": "DRAIN",
        "type": "power_in",
        "description": "Drain of the integrated high-voltage power MOSFET. Connects to the switching node (inductor and rectified bulk high-voltage rail via the converter topology). Also feeds the internal high-voltage startup current source that charges VDD."
      },
      {
        "number": "6",
        "name": "DRAIN",
        "type": "power_in",
        "description": "Drain of the integrated high-voltage power MOSFET. Tied with pins 5, 7 and 8."
      },
      {
        "number": "7",
        "name": "DRAIN",
        "type": "power_in",
        "description": "Drain of the integrated high-voltage power MOSFET. Tied with pins 5, 6 and 8."
      },
      {
        "number": "8",
        "name": "DRAIN",
        "type": "power_in",
        "description": "Drain of the integrated high-voltage power MOSFET. Tied with pins 5, 6 and 7. Four DRAIN pins are ganged to handle the switching current and improve thermal dissipation."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2201242200_Hangzhou-Silan-Microelectronics-SDH8322STR_C601603.pdf",
        "pages": 5,
        "sha256": "407e5698b2c8f07f",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sdh8322str-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b974782b597b28da7b7b402d60dfb309224babc45cbff001ddf9e5c1f635d4e7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Hangzhou Silan Microelectronics",
      "Package": "SOP-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sdh8322str"
  ],
  "discovery_pitch": "SDH8322STR (Hangzhou Silan Microelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "sdh8322str.kicad_mod",
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    "sdh8322str.step",
    "sdh8322str-etched.step",
    "sdh8322str.lbr",
    "docs/hero.png",
    "docs/sdh8322str-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SDH8322STR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T05:38:05.754Z"
}