EG4318A

{
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  "type": "component",
  "slug": "eg4318a",
  "title": "EG4318A",
  "brief": "EG Micro Battery Management, DIP-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": [
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    "power management (pmic)",
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  "component": {
    "mpn": "EG4318A",
    "manufacturer": "EG Micro",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917443510722560",
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      "lbr": "eg4318a.lbr"
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    "distributor_links": {
      "lcsc": "C81695"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T02:20:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
        "status": "no match"
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    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input with an operating range of 3.5V to 18V."
      },
      {
        "number": "2",
        "name": "LED_G",
        "type": "output",
        "description": "Charge-complete (float or done) green LED driver that lights when the Isense voltage is below the VFCTR reference, and sources up to 20mA on EG4318/EG4319."
      },
      {
        "number": "3",
        "name": "LED_Red",
        "type": "output",
        "description": "Charge-in-progress red LED driver that lights when the Isense voltage is above the VFCTR reference, with a maximum drive capability of 300mA."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "5",
        "name": "Isense",
        "type": "input",
        "description": "Constant-current sense input across Rsense, with an internal reference of 250mV for EG4318 and 140mV for EG4319."
      },
      {
        "number": "6",
        "name": "Vf",
        "type": "output",
        "description": "Float-voltage control output that is pulled to GND during the constant-voltage stage and left open in the float stage, with its internal float comparator reference set by the suffix (EG4318A: 50mV typical)."
      },
      {
        "number": "7",
        "name": "Vctrl",
        "type": "input",
        "description": "Output-voltage sense input referenced to an internal 2.5V reference (VREF, 2.475V to 2.525V)."
      },
      {
        "number": "8",
        "name": "Vout",
        "type": "output",
        "description": "Output-control pin that can only sink current, with a rated output pin voltage of -0.3V to 20V."
      }
    ],
    "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 lists a DIP8 package outline (section 9.1) and an SO8 outline (section 9.2) for the EG; The DIP8 package drawing content on page 19 is not present in the extracted text, so no pin-1 orient; The pin table covers EG4318/EG4319, and the EG4320 has a different pin 3 (GND) and pin 4 (Isenf). Th"
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        "cost_usd": 0.0742,
        "at": "2026-10-16T02:20:04"
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        "pages": 19,
        "sha256": "5ec5ec9aca410e78",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "extents_mm": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "EG Micro",
      "Package": "DIP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
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          "name": "Supply voltage VCC (absolute maximum)",
          "symbol": "VCC",
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          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
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        {
          "name": "Input voltage VIN (absolute maximum)",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as Vcc",
          "source_page": 11,
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        },
        {
          "name": "Output pin voltage VOUT (absolute maximum)",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
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          "min": -0.3,
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        },
        {
          "name": "Junction temperature TJ (absolute maximum)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operating temperature range TA",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -45,
          "typ": null,
          "max": 85,
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        {
          "name": "Storage temperature Tstr",
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          "unit": "℃",
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        {
          "name": "Soldering temperature TL",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "T=5S",
          "source_page": 11,
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        },
        {
          "name": "Thermal resistance junction-to-case QJC",
          "symbol": "QJC",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
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          "max": 92,
          "conditions": "",
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        },
        {
          "name": "Supply voltage Vcc (operating range)",
          "symbol": "Vcc",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3.5,
          "typ": null,
          "max": 18,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Flip/float comparator reference voltage VFCTR (EG4318A)",
          "symbol": "VFCTR",
          "kind": "electrical",
          "unit": "mV",
          "min": 45,
          "typ": 50,
          "max": 55,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Voltage loop internal reference VREF",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 2.475,
          "typ": 2.5,
          "max": 2.525,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Current loop internal reference voltage ISENSE (EG4318)",
          "symbol": "ISENSE",
          "kind": "electrical",
          "unit": "mV",
          "min": 245,
          "typ": 250,
          "max": 255,
          "conditions": "For EG4318",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Quiescent supply current Icc",
          "symbol": "Icc",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.6,
          "max": 2,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Voltage loop transconductance Gmv (sink current only)",
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          "kind": "electrical",
          "unit": "mA/mV",
          "min": 1,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Current loop transconductance Gmi",
          "symbol": "Gmi",
          "kind": "electrical",
          "unit": "mA/mV",
          "min": 2,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Input bias current ICTRL (Isense)",
          "symbol": "IIBI",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 0.4,
          "max": 1,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Output low level (pins 2 and 8) VOL1",
          "symbol": "VOL1",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.9,
          "max": 1.2,
          "conditions": "Isink=10mA",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output low level (pin 3) VOL3",
          "symbol": "VOL3",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.8,
          "max": 1,
          "conditions": "Isink=200mA",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output low level (pin 6) VOL2",
          "symbol": "VOL2",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": 0.2,
          "conditions": "Isink=2mA",
          "source_page": 12,
          "source": "datasheet"
        }
      ]
    }
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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