VIPER28HDTR

{
  "slug": "viper28hdtr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics AC-DC Controllers And Regulators, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "viper28hdtr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "viper28hdtr.kicad_sym",
    "viper28hdtr.kicad_mod",
    "viper28hdtr.glb",
    "viper28hdtr.step",
    "viper28hdtr.lbr",
    "docs/hero.png",
    "docs/viper28hdtr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "viper28hdtr-hero.glb",
    "viper28hdtr-hero.overlay.json"
  ],
  "component": {
    "mpn": "VIPER28HDTR",
    "manufacturer": "STMicroelectronics",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603077513690435584",
    "parts": {
      "symbol": "viper28hdtr.kicad_sym",
      "footprint": "viper28hdtr.kicad_mod",
      "model_3d": "viper28hdtr-hero.glb",
      "model_3d_plain": "viper28hdtr.glb",
      "model_3d_step": "viper28hdtr-etched.step",
      "model_3d_step_plain": "viper28hdtr.step",
      "lbr": "viper28hdtr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2970380",
      "digikey": "497-11244-2-ND",
      "mouser": "511-VIPER28HDTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T15:02:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-11244-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-VIPER28HDTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground and the source of the power section; pins 1 and 2 are both ground and should be tied together on the board."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground and the source of the power section; it is paired with pin 1 as a ground connection."
      },
      {
        "number": "3",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected internally; the datasheet gives no function or electrical limit for this pin."
      },
      {
        "number": "4",
        "name": "N.A.",
        "type": "unconnected",
        "description": "Not available for user; it is mechanically connected to the controller die pad of the frame, and connecting it to GND (pins 1-2) is highly recommended to improve noise immunity."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage of the control section, which also provides the charging current of the external capacitor during startup; absolute maximum VDD is self-limited with IDD input current limited to 25 mA."
      },
      {
        "number": "6",
        "name": "CONT",
        "type": "input",
        "description": "Control pin used for cycle-by-cycle current limit (IDlim) reduction through an external resistor to ground and for output overvoltage monitoring (VOVP); the absolute maximum pin voltage is -0.3 V to 6 V."
      },
      {
        "number": "7",
        "name": "FB",
        "type": "input",
        "description": "Control input for duty cycle control and burst-mode entry below VFBbm; the absolute maximum feedback voltage is -0.3 V to 5.5 V."
      },
      {
        "number": "8",
        "name": "EPT",
        "type": "input",
        "description": "Allows connection of an external capacitor for extra power management; if unused it must be connected to GND, and the absolute maximum EPT input voltage is -0.3 V to 5 V."
      },
      {
        "number": "9",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; the datasheet gives no function or electrical limit for this pin."
      },
      {
        "number": "10",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; the datasheet gives no function or electrical limit for this pin."
      },
      {
        "number": "11",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; the datasheet gives no function or electrical limit for this pin."
      },
      {
        "number": "12",
        "name": "N.C.",
        "type": "unconnected",
        "description": "Not connected; the datasheet gives no function or electrical limit for this pin."
      },
      {
        "number": "13",
        "name": "DRAIN",
        "type": "passive",
        "description": "High-voltage drain pin of the internal power MOSFET and the built-in high-voltage startup bias current source, rated at 800 V drain-to-source (ground); it is also connected to the metal frame for heat dissipation."
      },
      {
        "number": "14",
        "name": "DRAIN",
        "type": "passive",
        "description": "High-voltage drain pin of the internal power MOSFET and the built-in high-voltage startup bias current source, rated at 800 V drain-to-source (ground); it is also connected to the metal frame for heat dissipation."
      },
      {
        "number": "15",
        "name": "DRAIN",
        "type": "passive",
        "description": "High-voltage drain pin of the internal power MOSFET and the built-in high-voltage startup bias current source, rated at 800 V drain-to-source (ground); it is also connected to the metal frame for heat dissipation."
      },
      {
        "number": "16",
        "name": "DRAIN",
        "type": "passive",
        "description": "High-voltage drain pin of the internal power MOSFET and the built-in high-voltage startup bias current source, rated at 800 V drain-to-source (ground); it is also connected to the metal frame for heat dissipation."
      }
    ],
    "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: The pinout is taken from the SO16N column of Table 3 (page 6), which applies to the SO16 narrow pack; Pin types for DRAIN (passive) and EPT (input) are my KiCad ERC class choices, because the datasheet ; The connection diagram (Figure 3) is image-only in the extracted text, so pin positions were taken f"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0739,
        "at": "2026-10-11T15:01:59"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603077513690435584",
        "pages": 31,
        "sha256": "77f7390609cc2adb",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "viper28hdtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "viper28hdtr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "280201ffbcb478c7da3f7750e143f61ea8817c27a4aece3c25c88118563cf912",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}