main
Ray Set visibility: public 4e35f06 12d ago
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657
{
  "schema_version": 1,
  "type": "component",
  "slug": "eup8209-84dir1",
  "title": "EUP8209-84DIR1",
  "brief": "Eutech Microelectronics Battery Management ICs, SOP-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 ics",
    "eup8209-84dir1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "EUP8209-84DIR1",
    "manufacturer": "Eutech Microelectronics",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/aab89f978300a67075158d999b633a3a.pdf",
    "parts": {
      "symbol": "eup8209-84dir1.kicad_sym",
      "footprint": "eup8209-84dir1.kicad_mod",
      "model_3d": "eup8209-84dir1-hero.glb",
      "model_3d_plain": "eup8209-84dir1-etched.glb",
      "model_3d_step": "eup8209-84dir1-etched.step",
      "model_3d_step_plain": "eup8209-84dir1.step",
      "lbr": "eup8209-84dir1.lbr"
    },
    "distributor_links": {
      "lcsc": "C370747"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T03:18:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SENSE",
        "type": "input",
        "description": "Current amplifier sense input; a sense resistor RSENSE must be connected between the SENSE and BAT pins, and the maximum charge current equals 100mV/RSENSE."
      },
      {
        "number": "2",
        "name": "NTC",
        "type": "input",
        "description": "NTC thermistor input; with an external 10kΩ NTC to ground it senses battery temperature and stops the charger when out of range, and grounding it disables the temperature qualification."
      },
      {
        "number": "3",
        "name": "COMP",
        "type": "passive",
        "description": "Compensation, soft-start and shutdown control pin; charging begins at 850mV and pulling COMP below 280mV shuts the charger down."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage input; the EUP8209-84 version is specified with a VCC supply range of 8.9V to 20V."
      },
      {
        "number": "5",
        "name": "SW",
        "type": "output",
        "description": "Power switching output of the buck converter."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "IC ground pin, which also serves as a heat sink and should have generous copper around it."
      },
      {
        "number": "7",
        "name": "CHRG",
        "type": "output",
        "description": "Charge status output, pulled low by an internal N-channel MOSFET capable of driving an LED and specified with a CHRG output low voltage of 50mV maximum at 1mA."
      },
      {
        "number": "8",
        "name": "BAT",
        "type": "input",
        "description": "Battery sense input, requiring a 22µF bypass capacitor to minimize ripple voltage; when VBAT is within 250mV of VCC the device enters sleep mode, dropping ICC to 10µA."
      }
    ],
    "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": null,
        "consensus": "skipped (clean text read)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 19,
        "cost_usd": 0.0008,
        "at": "2026-10-27T03:18:48"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/aab89f978300a67075158d999b633a3a.pdf",
        "pages": 19,
        "sha256": "8a750af83005ce74",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "eup8209-84dir1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "eup8209-84dir1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7136df9f702c394987878617448f42eeb22f702c5e0c309fb89d81fe8d44e126",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Eutech Microelectronics",
      "Package": "SOP-8",
      "Category": "Power Management ICs",
      "Pins": "8"
    },
    "appearance": {
      "contacts": {
        "quote": "disrupting the loop stability. The ground pin also works as a heat sink, therefore use a generous amount of copper",
        "page": 18,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "8a750af83005ce748b78f09b6d8736039278e2d436f251c4e04b9d12132a0388"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8a750af83005ce748b78f09b6d8736039278e2d436f251c4e04b9d12132a0388",
      "rows": [
        {
          "name": "VCC Supply Voltage",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 8.9,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VCC Supply Current Current Mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": 1.5,
          "typ": null,
          "max": 5,
          "conditions": "Current Mode",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VCC Supply Current Shutdown Mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": 1.5,
          "typ": null,
          "max": 5,
          "conditions": "Shutdown Mode",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VCC Supply Current Sleep Mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": 10,
          "typ": null,
          "max": 20,
          "conditions": "Sleep Mode",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Battery Regulated Float Voltage (8.4 version)",
          "symbol": "VBAT(FLT)",
          "kind": "electrical",
          "unit": "V",
          "min": 8.316,
          "typ": 8.4,
          "max": 8.484,
          "conditions": "9V≦ VCC ≦ 20V, 0°C≦ TA ≦85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Constant Current Sense Voltage",
          "symbol": "VSNS(CHG)",
          "kind": "electrical",
          "unit": "mV",
          "min": 90,
          "typ": 100,
          "max": 110,
          "conditions": "TA =25°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Constant Current Sense Voltage",
          "symbol": "VSNS(CHG)",
          "kind": "electrical",
          "unit": "mV",
          "min": 85,
          "typ": null,
          "max": 115,
          "conditions": "6V≦ VBAT ≦ 8V, -40°C≦ TA ≦85°C",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Trickle Current Sense Voltage",
          "symbol": "VSNS(TRKL)",
          "kind": "electrical",
          "unit": "mV",
          "min": 8,
          "typ": 15,
          "max": 22,
          "conditions": "VBAT = 1V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Trickle Charge Threshold Voltage",
          "symbol": "VTRKL",
          "kind": "electrical",
          "unit": "V",
          "min": 4.7,
          "typ": 5,
          "max": 5.3,
          "conditions": "VBAT = Rising",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VCC Undervoltage Lockout Threshold Voltage",
          "symbol": "VUV",
          "kind": "electrical",
          "unit": "V",
          "min": 7.5,
          "typ": null,
          "max": 8.5,
          "conditions": "VCC = Rising",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VCC Undervoltage Lockout Hysteresis Voltage",
          "symbol": "∆VUV",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Manual shutdown Threshold Voltage",
          "symbol": "VMSD",
          "kind": "electrical",
          "unit": "mV",
          "min": 150,
          "typ": 280,
          "max": 450,
          "conditions": "COMP Pin Falling",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Automatic shutdown Threshold Voltage",
          "symbol": "VASD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "VCC - VBAT",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "COMP Pin Output Current",
          "symbol": "ICOMP",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "VCOMP = 1.2V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CHRG Pin Output Low Voltage",
          "symbol": "VCHRG",
          "kind": "electrical",
          "unit": "mV",
          "min": 20,
          "typ": null,
          "max": 50,
          "conditions": "ICHRG = 1mA",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "End-of-Charge Ratio",
          "symbol": "REOC",
          "kind": "electrical",
          "unit": "%",
          "min": 5,
          "typ": 15,
          "max": 25,
          "conditions": "VSNS(EOC) /VSNS(CHG)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Charge time Accuracy",
          "symbol": "tTIMER",
          "kind": "tolerance",
          "unit": "%",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "NTC Pin Output Current",
          "symbol": "INTC",
          "kind": "electrical",
          "unit": "µA",
          "min": 75,
          "typ": 85,
          "max": 95,
          "conditions": "VNTC = 0.85V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "NTC Pin Threshold Voltage (Hot)",
          "symbol": "VNTC",
          "kind": "electrical",
          "unit": "mV",
          "min": 340,
          "typ": 360,
          "max": 380,
          "conditions": "VNTC = Falling",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "NTC Pin Threshold Voltage (Hot) Hysteresis",
          "symbol": "VNTC-HOT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "Hysteresis",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "NTC Pin Threshold Voltage (Cold)",
          "symbol": "VNTC",
          "kind": "electrical",
          "unit": "V",
          "min": 2.35,
          "typ": 2.4,
          "max": 2.45,
          "conditions": "VNTC = Rising",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "NTC Pin Threshold Voltage (Cold) Hysteresis",
          "symbol": "VNTC-COLD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "Hysteresis",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Recharge Battery Voltage Offset from Full Charged Battery Voltage",
          "symbol": "∆VRECHRG",
          "kind": "electrical",
          "unit": "mV",
          "min": 200,
          "typ": 300,
          "max": 400,
          "conditions": "VBAT(FULLCHARGD) –VRECHRG, VBAT Falling",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CHRG Pin Leakage Current",
          "symbol": "ILEAK",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VCHRG= 8V, Charging Stops",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "High-Side Switch On-Resistance",
          "symbol": "RDSON",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 55,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Switching Frequency",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 450,
          "typ": 500,
          "max": 550,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "DC Maximum Duty Cycle",
          "symbol": "DC",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VCC Supply Voltage (absolute maximum)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 22,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SW pin voltage",
          "symbol": "SW",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -1,
          "typ": null,
          "max": null,
          "conditions": "max is VCC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "BAT, SENSE pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 14,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "CHRG, NTC pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering, 10sec)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "ESD protection",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "eup8209-84dir1"
  ],
  "discovery_pitch": "EUP8209-84DIR1 (Eutech Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "eup8209-84dir1.kicad_sym",
    "eup8209-84dir1.kicad_mod",
    "eup8209-84dir1.glb",
    "eup8209-84dir1.step",
    "eup8209-84dir1.lbr",
    "docs/hero.png",
    "docs/eup8209-84dir1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "eup8209-84dir1-hero.glb",
    "eup8209-84dir1-hero.overlay.json",
    "eup8209-84dir1-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}