ETA4054S2F

{
  "schema_version": 1,
  "type": "component",
  "slug": "eta4054s2f",
  "title": "ETA4054S2F",
  "brief": "etasolution Battery Management, SOT23-5. 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)",
    "eta4054s2f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ETA4054S2F",
    "manufacturer": "etasolution",
    "package": "SOT23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602845925434421248",
    "parts": {
      "symbol": "eta4054s2f.kicad_sym",
      "footprint": "eta4054s2f.kicad_mod",
      "model_3d": "eta4054s2f-hero.glb",
      "model_3d_plain": "eta4054s2f-etched.glb",
      "model_3d_step": "eta4054s2f-etched.step",
      "model_3d_step_plain": "eta4054s2f.step",
      "lbr": "eta4054s2f.lbr"
    },
    "distributor_links": {
      "lcsc": "C7435194"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T13:02:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "STAT",
        "type": "output",
        "description": "Open-drain charge status output that is pulled low while the battery is charging and becomes high-impedance after the charge cycle completes, with a STAT/STDBY output low voltage of 0.6V max at 5mA."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, which is connected to the ISET program resistor."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Charge current output that supplies the battery and regulates the final float voltage to 4.2V, set by an internal precision resistor divider; the pin is rated 16V standoff."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive input supply that needs to be bypassed with at least a 1μF capacitor, with an input supply range of 4.25V to 16V and a 20V absolute maximum."
      },
      {
        "number": "5",
        "name": "ISET",
        "type": "passive",
        "description": "Charge-current program and monitor pin that is held at 1V in constant-current mode through a 1% resistor to GND; disconnecting the resistor puts the charger into shutdown and reconnecting it restarts a charge cycle."
      }
    ],
    "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 pin configuration diagram on page 2 is garbled in the text extraction (pin names and numbers do ; KiCad type for BAT is a judgment call: the datasheet describes it as the charge current output to th; The schema has no output-type class for an open-drain pin, so STAT is typed output. Its pull-down is"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0373,
        "at": "2026-10-18T12:59:47"
      },
      "datasheet": {
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        "pages": 6,
        "sha256": "1880c32024554c0d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "etasolution",
      "Package": "SOT23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1880c32024554c0d5f12d1f3597b1d58a74800446a2fe8a715435a394f562e59",
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          "symbol": "",
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        {
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          "name": "Input Supply Current",
          "symbol": "",
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          "unit": "μA",
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          "max": 50,
          "conditions": "Shutdown Mode (ISET Not Connected, VIN<VBAT, or VIN<VULO)",
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        {
          "name": "BAT Pin Current",
          "symbol": "",
          "kind": "electrical",
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          "max": 110,
          "conditions": "Rset = 10K, Current Mode",
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          "name": "BAT Pin Current",
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          "name": "BAT Pin Current",
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        {
          "name": "BAT Pin Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": 0,
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          "max": -3,
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        {
          "name": "BAT Pin Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
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          "max": 0.35,
          "conditions": "Shutdown Mode, ISET Not Connected",
          "source_page": 2,
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        },
        {
          "name": "Trickle Charge Current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": 20,
          "typ": 50,
          "max": 100,
          "conditions": "VBAT < VTRIKL, Rset = 2K",
          "source_page": 2,
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        },
        {
          "name": "Trickle Charge Threshold Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.75,
          "typ": 2.93,
          "max": 3.09,
          "conditions": "VBAT Rising",
          "source_page": 2,
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        },
        {
          "name": "Trickle Charge Hysteresis Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": 100,
          "typ": 130,
          "max": 165,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN Undervoltage Lockout Threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 3.05,
          "typ": 3.35,
          "max": 3.6,
          "conditions": "From VIN Low to High",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VIN Undervoltage Lockout Hysteresis",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.4,
          "typ": 0.55,
          "max": 0.65,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Manual Shutdown Threshold Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 1.1,
          "typ": 1.2,
          "max": 1.3,
          "conditions": "ISET Pin Rising",
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          "source": "datasheet"
        },
        {
          "name": "Manual Shutdown Threshold Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": 1,
          "max": 1.13,
          "conditions": "ISET Pin Falling",
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          "source": "datasheet"
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        {
          "name": "VIN–VBAT Lockout Threshold Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": 70,
          "typ": 100,
          "max": 140,
          "conditions": "VIN from Low to High",
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        {
          "name": "VIN–VBAT Lockout Threshold Voltage",
          "symbol": "",
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          "min": null,
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          "max": 30,
          "conditions": "VIN from High to Low",
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        {
          "name": "C/10 Termination Current Threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA/mA",
          "min": 0.085,
          "typ": 0.1,
          "max": 0.115,
          "conditions": "Note 2",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "ISET Pin Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 0.93,
          "typ": 1,
          "max": 1.07,
          "conditions": "Current Mode, VBAT=4V",
          "source_page": 3,
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        {
          "name": "STAT/STDBY Pin Output Low Voltage",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
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          "max": 0.6,
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        {
          "name": "Recharge BAT Threshold Voltage",
          "symbol": "VFLOAT - VRECHRG",
          "kind": "electrical",
          "unit": "mV",
          "min": 90,
          "typ": 120,
          "max": 150,
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          "source": "datasheet"
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        {
          "name": "Termination Comparator Filter Time",
          "symbol": "",
          "kind": "electrical",
          "unit": "μs",
          "min": 400,
          "typ": 1000,
          "max": 2500,
          "conditions": "IBAT Falling Below ICHG/10",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "BAT Voltage",
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          "unit": "V",
          "min": -0.3,
          "typ": null,
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          "name": "All other pin Voltage",
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          "conditions": "",
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        },
        {
          "name": "Operating Temperature Range",
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          "unit": "°C",
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          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "Storage Temperature Range",
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          "unit": "°C",
          "min": -55,
          "typ": null,
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          "conditions": "",
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        {
          "name": "ESD HBM (Human Body Model)",
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          "unit": "KV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
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        },
        {
          "name": "Thermal Resistance θJC",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "SOT23-5",
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        }
      ]
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    "name": "Ray",
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