BL8573CS8TR

{
  "slug": "bl8573cs8tr",
  "version": "0.1.0",
  "type": "component",
  "description": "BL Shanghai Belling Battery Management, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "bl8573cs8tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bl8573cs8tr.kicad_sym",
    "bl8573cs8tr.kicad_mod",
    "bl8573cs8tr.glb",
    "bl8573cs8tr.step",
    "bl8573cs8tr.lbr",
    "docs/hero.png",
    "docs/bl8573cs8tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bl8573cs8tr-hero.glb",
    "bl8573cs8tr-hero.overlay.json",
    "bl8573cs8tr-etched.glb"
  ],
  "component": {
    "mpn": "BL8573CS8TR",
    "manufacturer": "BL Shanghai Belling",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226215740211200",
    "parts": {
      "symbol": "bl8573cs8tr.kicad_sym",
      "footprint": "bl8573cs8tr.kicad_mod",
      "model_3d": "bl8573cs8tr-hero.glb",
      "model_3d_plain": "bl8573cs8tr-etched.glb",
      "model_3d_step": "bl8573cs8tr-etched.step",
      "model_3d_step_plain": "bl8573cs8tr.step",
      "lbr": "bl8573cs8tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2999147"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T02:45:45Z",
      "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": "No connection."
      },
      {
        "number": "2",
        "name": "PROG",
        "type": "bidirectional",
        "description": "Charge current program, monitor and shutdown pin: a 1% resistor RPROG to GND sets IBAT = (VPROG/RPROG)×1000 with VPROG = 1V in constant-current mode, floating it shuts down the charger (3μA pull-up), and it is clamped to about 2.4V."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive input supply (4.25V to 6.0V operating, 6.5V absolute maximum) that needs bypassing with at least a 1μF capacitor, and the charger enters shutdown when VCC falls within 30mV of the BAT voltage."
      },
      {
        "number": "5",
        "name": "BAT",
        "type": "power_out",
        "description": "Charge current output to the battery that regulates the final float voltage to 4.2V or 4.35V (1% accuracy) through an internal precision resistor divider."
      },
      {
        "number": "6",
        "name": "STDBY",
        "type": "output",
        "description": "Open-drain charge status output that pulls low when the battery is fully charged (absolute maximum -0.3V to 6.5V)."
      },
      {
        "number": "7",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge status output that pulls low while the battery is charging (absolute maximum -0.3V to 6.5V), and is high impedance in undervoltage lockout."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "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 ESOP-8 pin configuration on page 2 is garbled in the text extraction and has no printed pin numb; Both NC pins are placed by inference from the extracted text order. Their exact positions are not co; CHRG and STDBY are open-drain outputs. The datasheet describes them as pull-down or high-impedance, ",
          "exposed pad 9 added from the footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.115,
        "at": "2026-10-18T02:43:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226215740211200",
        "pages": 12,
        "sha256": "3479cdc9baa90eb9",
        "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": "bl8573cs8tr.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl8573cs8tr-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": "c7af6516f2598d97ede6b27d8e7bed7447b15f1242ab379231589397d75b22fe",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}