KP421SPA

{
  "slug": "kp421spa",
  "version": "0.1.0",
  "type": "component",
  "description": "Kiwi Instruments Supervisor And Reset ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "kp421spa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "kp421spa.kicad_sym",
    "kp421spa.kicad_mod",
    "kp421spa.glb",
    "kp421spa.step",
    "kp421spa.lbr",
    "docs/hero.png",
    "docs/kp421spa-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "kp421spa-hero.glb",
    "kp421spa-hero.overlay.json",
    "kp421spa-etched.glb"
  ],
  "component": {
    "mpn": "KP421SPA",
    "manufacturer": "Kiwi Instruments",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Supervisor And Reset ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943681173278720",
    "parts": {
      "symbol": "kp421spa.kicad_sym",
      "footprint": "kp421spa.kicad_mod",
      "model_3d": "kp421spa-hero.glb",
      "model_3d_plain": "kp421spa-etched.glb",
      "model_3d_step": "kp421spa-etched.step",
      "model_3d_step_plain": "kp421spa.step",
      "lbr": "kp421spa.lbr"
    },
    "distributor_links": {
      "lcsc": "C2692492"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:22:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DET",
        "type": "input",
        "description": "MOSFET drain-voltage detection pin; the DET clamp voltage is 2 V, and the LED short-circuit protection thresholds are 36-44 uA (trigger) and 70-100 uA (recovery)."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; leave floating in use."
      },
      {
        "number": "3",
        "name": "GATE",
        "type": "output",
        "description": "NMOSFET gate drive output; the gate maximum voltage is 8-12 V (typical 10 V)."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "LED current-sense input; the current limit is 190-200 mV and the open-circuit detection threshold is 5-15 mV."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Chip reference ground."
      },
      {
        "number": "6",
        "name": "COMP",
        "type": "input",
        "description": "Ripple-cancellation loop compensation pin; when left floating, the compensation is fixed internally (3 uF capacitor), and with an external capacitor the COMP clamp voltage is 1.8-2.2 V."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; leave floating in use."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Chip supply pin; start-up voltage is 13.5-17 V, undervoltage lockout threshold is 8.5-10.5 V, and the VDD breakdown voltage is 650 V."
      }
    ],
    "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 SOP-8 pinout was taken from the pin-function table on page 2 (SOT23-6 and SOP-8 columns). The pi; Pin types are KiCad classes mapped from the datasheet's I/O column. The datasheet lists VDD and GND ; Pin descriptions are English translations of the Chinese datasheet and include the limits stated in "
        ],
        "pages_sent": 7,
        "cost_usd": 0.0372,
        "at": "2026-10-18T22:18:42"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943681173278720",
        "pages": 7,
        "sha256": "347cd2cd26fc92f5",
        "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": "kp421spa.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "kp421spa-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1bcfc42c26e7a5e8d843f5aa4218eb985c3ecfb62d841b47c2446cd89f2579ba",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}