SE9029X

{
  "slug": "se9029x",
  "version": "0.1.0",
  "type": "component",
  "description": "Seaward Elec Battery Management, SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "se9029x",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "se9029x.kicad_sym",
    "se9029x.kicad_mod",
    "se9029x.glb",
    "se9029x.step",
    "se9029x.lbr",
    "docs/hero.png",
    "docs/se9029x-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "se9029x-hero.glb",
    "se9029x-hero.overlay.json",
    "se9029x-etched.glb"
  ],
  "component": {
    "mpn": "SE9029X",
    "manufacturer": "Seaward Elec",
    "package": "SOP-8-EP",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918358040961024",
    "parts": {
      "symbol": "se9029x.kicad_sym",
      "footprint": "se9029x.kicad_mod",
      "model_3d": "se9029x-hero.glb",
      "model_3d_plain": "se9029x-etched.glb",
      "model_3d_step": "se9029x-etched.step",
      "model_3d_step_plain": "se9029x.step",
      "lbr": "se9029x.lbr"
    },
    "distributor_links": {
      "lcsc": "C668227"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T12:01:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin (地) for the charger."
      },
      {
        "number": "2",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input pin; the recommended input range is 4.7 V to 5.5 V, the absolute maximum is -0.3 V to 6.5 V, and a C1 of at least 10 µF must be placed as close to VIN as possible."
      },
      {
        "number": "3",
        "name": "CHRG",
        "type": "output",
        "description": "Charge-status indicator: pulled low during trickle and constant-current charging and high impedance when charging is complete or in fault/sleep; Vchrg is at most 0.6 V at 5 mA."
      },
      {
        "number": "4",
        "name": "STDBY",
        "type": "output",
        "description": "Charge-status indicator: high during trickle and constant-current charging, pulled low when charging is complete, and high impedance during temperature fault or sleep; Vstdby is at most 0.6 V at 5 mA."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection (NC, empty pin) on the SE9029X; on the SE9029XD this pin is the EN enable input."
      },
      {
        "number": "6",
        "name": "BAT",
        "type": "input",
        "description": "Battery voltage feedback input and battery positive terminal; the float voltage is 4.2 V or 4.35 V (typical), and C3 should be placed close to this pin."
      },
      {
        "number": "7",
        "name": "SEN",
        "type": "input",
        "description": "Charge-current setting pin; the charge current is IBAT = 100 mV / R5, where R5 is the sense resistor connected between SEN and BAT."
      },
      {
        "number": "8",
        "name": "SW",
        "type": "output",
        "description": "Switching output node of the buck converter (1 MHz typical switching frequency)."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 SOP8-EP exposed pad is not given a pin number in the pin table (pins 1-8 only), and the datashee; Pin 5 is listed as NC (name printed as NC（EN）) for the SE9029X; it is an EN enable pin only on the S; Pin descriptions are translated from the Chinese original, and the pin diagram is an image not prese",
          "exposed pad 9 added from the footprint",
          "1/9 pin names appear NOWHERE in the datasheet text: ['5:NC(EN)@p4']"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0469,
        "at": "2026-10-18T11:59:21"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918358040961024",
        "pages": 12,
        "sha256": "c55b1540a349a9d7",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "se9029x.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "se9029x-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bad46bf7e34e131b0a8ea6b9203f9bee7e5a34a63b823b79788df90c326c2b9f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}