XT4076Y2ASR-G

{
  "slug": "xt4076y2asr-g",
  "version": "0.1.0",
  "type": "component",
  "description": "NATLINEAR Battery Management ICs, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "xt4076y2asr-g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "xt4076y2asr-g.kicad_sym",
    "xt4076y2asr-g.kicad_mod",
    "xt4076y2asr-g.glb",
    "xt4076y2asr-g.step",
    "xt4076y2asr-g.lbr",
    "docs/hero.png",
    "docs/xt4076y2asr-g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "xt4076y2asr-g-hero.glb",
    "xt4076y2asr-g-hero.overlay.json",
    "xt4076y2asr-g-etched.glb"
  ],
  "component": {
    "mpn": "XT4076Y2ASR-G",
    "manufacturer": "NATLINEAR",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Supply Chip",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/e1fdd17487299506ef8947b0a58483b6.pdf",
    "parts": {
      "symbol": "xt4076y2asr-g.kicad_sym",
      "footprint": "xt4076y2asr-g.kicad_mod",
      "model_3d": "xt4076y2asr-g-hero.glb",
      "model_3d_plain": "xt4076y2asr-g-etched.glb",
      "model_3d_step": "xt4076y2asr-g-etched.step",
      "model_3d_step_plain": "xt4076y2asr-g.step",
      "lbr": "xt4076y2asr-g.lbr"
    },
    "distributor_links": {
      "lcsc": "C3007993"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:28:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect (empty pin)."
      },
      {
        "number": "2",
        "name": "PROG",
        "type": "bidirectional",
        "description": "Charge current programming, monitoring and shutdown pin: a 1% resistor to ground sets IBAT = (VPROG/RPROG)×960, pin sits at 1V in constant-current mode, shutdown above 1.21V when resistor is removed (floats at about 2.4V)."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive input supply of 4.25V to 6.5V, requires at least 1µF bypass capacitor; charger enters shutdown when VCC is within 30mV of BAT voltage."
      },
      {
        "number": "5",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery positive connection that supplies charge current and the constant float voltage; current is below 2µA in undervoltage lockout or sleep mode."
      },
      {
        "number": "6",
        "name": "DONE",
        "type": "output",
        "description": "Open-drain charge-complete indicator pulled low by an internal switch when charging has finished, otherwise high impedance."
      },
      {
        "number": "7",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charging indicator pulled low by an internal switch while the battery is charging, otherwise high impedance."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect (empty pin)."
      },
      {
        "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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Exposed thermal pad is not described in the pin table; ESOP8 package drawing lists E2/D1 dimensions ; Datasheet text gives inconsistent PROG formula (×1000 on page 1 vs ×960 elsewhere); the ×960 value w"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0845,
        "at": "2026-10-22T22:28:00"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/e1fdd17487299506ef8947b0a58483b6.pdf",
        "pages": 12,
        "sha256": "1047025d46411ad2",
        "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": [
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        "file": "xt4076y2asr-g.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xt4076y2asr-g-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "81133c1d2e7f9eff82a837ec00cf4c134fd8f59b4ffbfdf545475bf5de9cfa55",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}