GX4056

{
  "slug": "gx4056",
  "version": "0.1.0",
  "type": "component",
  "description": "GUOXIN JIAPIN SEMICONDUCTOR Battery Management, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "gx4056",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gx4056.kicad_sym",
    "gx4056.kicad_mod",
    "gx4056.glb",
    "gx4056.step",
    "gx4056.lbr",
    "docs/hero.png",
    "docs/gx4056-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "gx4056-hero.glb",
    "gx4056-hero.overlay.json",
    "gx4056-etched.glb"
  ],
  "component": {
    "mpn": "GX4056",
    "manufacturer": "GUOXIN JIAPIN SEMICONDUCTOR",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590455055774998528",
    "parts": {
      "symbol": "gx4056.kicad_sym",
      "footprint": "gx4056.kicad_mod",
      "model_3d": "gx4056-hero.glb",
      "model_3d_plain": "gx4056-etched.glb",
      "model_3d_step": "gx4056-etched.step",
      "model_3d_step_plain": "gx4056.step",
      "lbr": "gx4056.lbr"
    },
    "distributor_links": {
      "lcsc": "C5259236"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T06:11:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "Empty (no-connect) pin per the pin definition table; not used."
      },
      {
        "number": "2",
        "name": "PROG",
        "type": "passive",
        "description": "Charge-current setting pin: a resistor from PROG to GND sets the charge current by IBAT = 1000V / RPROG (RPROG must be at least 1 kΩ per note 1), PROG is regulated to 1.0 V in constant-current mode and 0.1 V in trickle charge, and its absolute-maximum voltage is -0.3 to 0.3 V."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground for the charger."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Charger input supply: charging starts only when VCC exceeds the 3.7 V typical undervoltage lockout threshold and is at least 100 mV above VBAT; operating range 4.5 V to 6.5 V, absolute maximum -0.3 V to 8 V."
      },
      {
        "number": "5",
        "name": "VBAT",
        "type": "power_out",
        "description": "Battery positive terminal that delivers the charge current and the 4.2 V float voltage; absolute maximum -0.3 V to 8 V, and it floats to about 4.6 V when no battery is connected."
      },
      {
        "number": "6",
        "name": "STDBY",
        "type": "output",
        "description": "Open-drain charge-complete indicator that is pulled low (LED on) when charging is finished; absolute maximum -0.3 V to 8 V."
      },
      {
        "number": "7",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge-status indicator that is pulled low by an internal switch while charging and goes high-impedance when charging ends; output low voltage 0.6 V max at 5 mA, absolute maximum -0.3 V to 8 V."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "Empty (no-connect) pin per the pin definition table; not used."
      },
      {
        "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: Pin-number conflict in the datasheet. The pin definition table on page 2 lists PROG as pin 2, CHRG a; The ESOP8 package outline drawing on page 7 is only a heading in the extracted text, so the pin numb",
          "exposed pad 9 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0411,
        "at": "2026-10-19T06:10:57"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590455055774998528",
        "pages": 7,
        "sha256": "871e98062a4e6b4c",
        "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": "gx4056.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gx4056-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "cdc12f1196cb8df3e406744e2d76222da215076c6d1e008e5a178b39ad004977",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}