ETA9880E8A

{
  "schema_version": 1,
  "type": "component",
  "slug": "eta9880e8a",
  "title": "ETA9880E8A",
  "brief": "ETA(钰泰） Battery Management, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "eta9880e8a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ETA9880E8A",
    "manufacturer": "ETA(钰泰）",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604748293562261504",
    "parts": {
      "symbol": "eta9880e8a.kicad_sym",
      "footprint": "eta9880e8a.kicad_mod",
      "model_3d": "eta9880e8a-hero.glb",
      "model_3d_plain": "eta9880e8a-etched.glb",
      "model_3d_step": "eta9880e8a-etched.step",
      "model_3d_step_plain": "eta9880e8a.step",
      "lbr": "eta9880e8a.lbr"
    },
    "distributor_links": {
      "lcsc": "C5554991"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T06:40:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "power_in",
        "description": "DC input pin (20V standoff, 4.5V to 6V input range); bypass with a 10uF capacitor from this pin to GND."
      },
      {
        "number": "2",
        "name": "LED1",
        "type": "output",
        "description": "Fuel gauge LED1 connection pin for battery level and charge/discharge status indication."
      },
      {
        "number": "3",
        "name": "LED2",
        "type": "output",
        "description": "Fuel gauge LED2 connection pin for battery level and charge/discharge status indication."
      },
      {
        "number": "4",
        "name": "LED3",
        "type": "output",
        "description": "Fuel gauge LED3 connection pin for battery level and charge/discharge status indication."
      },
      {
        "number": "5",
        "name": "PB",
        "type": "bidirectional",
        "description": "Push button input that activates boost when pressed with no input present (hold 0.8S toggles the flashlight), and also an internal open-drain flashlight output."
      },
      {
        "number": "6",
        "name": "BAT",
        "type": "power_in",
        "description": "Battery voltage sense pin; connect a separate sensing wire to the battery positive terminal and bypass with a 10uF capacitor to GND as close as possible."
      },
      {
        "number": "7",
        "name": "SW",
        "type": "passive",
        "description": "Switching pin; connect an inductor (2.2uH typical) between this pin and the BAT pin."
      },
      {
        "number": "8",
        "name": "OUT",
        "type": "power_out",
        "description": "USB 5.05V output during boost and charging input pin during charging; bypass with 2x22uF capacitors to GND as close as possible."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Exposed pad/chip substrate, connected to GND with a large area of ground trace for good thermal dissipation."
      }
    ],
    "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 datasheet prints pin 9 as '/EP' (exposed pad) and labels it GND; the pin number and the GND-clas; The datasheet describes these pins functionally but does not give KiCad ERC electrical types; the ty; The datasheet only says these are fuel gauge LED connection pins; output type is inferred from LED d"
        ],
        "pages_sent": 9,
        "cost_usd": 0.035,
        "at": "2026-10-17T06:38:27"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604748293562261504",
        "pages": 9,
        "sha256": "8d3992b6150db985",
        "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": "eta9880e8a.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "eta9880e8a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ab0707ad76370560cef45d6751870c66248675ffad7c9b986aaa313e84e11e11",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ETA(钰泰）",
      "Package": "ESOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "9"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8d3992b6150db985fa42794ca3238cde1ec6516d43bb1b4dfd830d01ee050a5d",
      "rows": [
        {
          "name": "Battery CV Voltage (ETA9880 variant, 4.2V)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 4.16,
          "typ": 4.2,
          "max": 4.24,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Range",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 4.95,
          "typ": 5.05,
          "max": 5.15,
          "conditions": "IOUT=0A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Current Limit",
          "symbol": "",
          "kind": "electrical",
          "unit": "A",
          "min": 2.4,
          "typ": 2.8,
          "max": 3.2,
          "conditions": "VBAT=3.8V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "IN Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "OUT Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance ΘJC (ESOP8)",
          "symbol": "ΘJC",
          "kind": "thermal",
          "unit": "oC/W",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance ΘJA (ESOP8)",
          "symbol": "ΘJA",
          "kind": "thermal",
          "unit": "oC/W",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
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  "discovery_pitch": "ETA9880E8A (ETA(钰泰）) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}