DS6521AFF8

{
  "slug": "ds6521aff8",
  "version": "0.1.0",
  "type": "component",
  "description": "DSTECH Battery Management, SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ds6521aff8",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ds6521aff8.kicad_sym",
    "ds6521aff8.kicad_mod",
    "ds6521aff8.glb",
    "ds6521aff8.step",
    "ds6521aff8.lbr",
    "docs/hero.png",
    "docs/ds6521aff8-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ds6521aff8-hero.glb",
    "ds6521aff8-hero.overlay.json",
    "ds6521aff8-etched.glb"
  ],
  "component": {
    "mpn": "DS6521AFF8",
    "manufacturer": "DSTECH",
    "package": "SOP-8-EP",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590910851577044992",
    "parts": {
      "symbol": "ds6521aff8.kicad_sym",
      "footprint": "ds6521aff8.kicad_mod",
      "model_3d": "ds6521aff8-hero.glb",
      "model_3d_plain": "ds6521aff8-etched.glb",
      "model_3d_step": "ds6521aff8-etched.step",
      "model_3d_step_plain": "ds6521aff8.step",
      "lbr": "ds6521aff8.lbr"
    },
    "distributor_links": {
      "lcsc": "C5884237"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T23:06:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TS",
        "type": "input",
        "description": "Connects to the battery pack NTC thermistor (10 kΩ or 100 kΩ at 25 °C) for temperature sensing; tie TS directly to GND if temperature detection is not needed."
      },
      {
        "number": "2",
        "name": "ISET",
        "type": "input",
        "description": "Programs the fast-charge current: an external resistor from ISET to GND sets ICHG = VISET / RISET × 1000 with VISET = 1 V, and the programmable range is 50 mA to 1 A."
      },
      {
        "number": "3",
        "name": "VIN",
        "type": "power_in",
        "description": "Input supply pin, recommended operating range 4.5 V to 24 V, with 6 V input overvoltage protection and a 28 V input rating."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_out",
        "description": "Internal regulator output; a 0.1 µF to 1 µF capacitor to ground is recommended."
      },
      {
        "number": "5",
        "name": "BAT",
        "type": "power_out",
        "description": "Connects to the battery, which may also connect the system load; a bypass capacitor of 10 µF to 22 µF is recommended."
      },
      {
        "number": "6",
        "name": "CHG",
        "type": "output",
        "description": "Charge status output: low (FET on) indicates charging, and open (FET off) indicates no charging or charge complete."
      },
      {
        "number": "7",
        "name": "EN",
        "type": "input",
        "description": "Chip enable with 1.5 V rising and 0.4 V falling thresholds; at EN = 0 V the standby current IQS is 80 µA maximum at VIN = 5 V."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "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 page-2 pin table has no explicit column header per row in the extracted text. The ESOP-8 numberi; Pin types for BAT (power_out vs bidirectional), ISET (input vs passive), and the exposed pad PGND (p; The datasheet gives no spec field in this output schema; the headline ratings (VIN 4.5–24 V, 28 V ra",
          "exposed pad 9 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0685,
        "at": "2026-10-18T23:04:24"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590910851577044992",
        "pages": 15,
        "sha256": "e4ba68fabe077547",
        "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": "ds6521aff8.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": "ds6521aff8-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": "4608e23af12f818e3fd5ff1844026c21a05a99dd2989e52d611737e0ea07ccce",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}