EG1252

{
  "slug": "eg1252",
  "version": "0.1.0",
  "type": "component",
  "description": "EG Micro AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "eg1252",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "eg1252.kicad_sym",
    "eg1252.kicad_mod",
    "eg1252.glb",
    "eg1252.step",
    "eg1252.lbr",
    "docs/hero.png",
    "docs/eg1252-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "eg1252-hero.glb",
    "eg1252-hero.overlay.json"
  ],
  "component": {
    "mpn": "EG1252",
    "manufacturer": "EG Micro",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946054305746944",
    "parts": {
      "symbol": "eg1252.kicad_sym",
      "footprint": "eg1252.kicad_mod",
      "model_3d": "eg1252-hero.glb",
      "model_3d_plain": "eg1252.glb",
      "model_3d_step": "eg1252-etched.step",
      "model_3d_step_plain": "eg1252.step",
      "lbr": "eg1252.lbr"
    },
    "distributor_links": {
      "lcsc": "C2929085"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T22:55:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 540 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "FB",
        "type": "input",
        "description": "Feedback pin: the PWM duty cycle is set by the voltage on this pin together with the current-sense signal, with an open-circuit voltage of 5.3 V, an overload threshold of 4.6 V and a PWM gain of 2.8 V/V."
      },
      {
        "number": "2",
        "name": "BO",
        "type": "input",
        "description": "Input-voltage detection pin for input under-voltage protection, with a protection voltage of 0.9 V and an internal 9 µA pull-down current source active below 0.9 V."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Current-sense pin that senses the voltage across the current-sense resistor for cycle-by-cycle over-current protection, with a current-limit threshold of 0.85 to 0.95 V (0.9 V typical) and 250 ns leading-edge blanking."
      },
      {
        "number": "4",
        "name": "RI",
        "type": "passive",
        "description": "Frequency-setting pin: a resistor connected between RI and GND sets the switching frequency by Fosc(kHz) = 3640 / RI(kΩ), with an open-circuit voltage of 2 V and a typical test value of RI = 56 kΩ."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Chip ground reference for the controller."
      },
      {
        "number": "6",
        "name": "OUT",
        "type": "output",
        "description": "Gate-drive output that drives the power MOSFET gate, rated at VCC+0.3 V maximum with a typical low-level output of 0.3 V at 20 mA sink and high-level output of 11 V at 20 mA source."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin with an absolute maximum rating of 30 V, a clamp current limit of 10 mA, and a Zener clamp of 31 to 33 V at 10 mA; the datasheet gives UVLO thresholds of 15 to 17 V (turn-on) and 9.5 to 11.5 V (turn-off)."
      },
      {
        "number": "8",
        "name": "RT",
        "type": "input",
        "description": "Over-temperature protection pin for an external NTC thermistor, sourcing 80 µA; the output switches off when RT falls to 1 V and recovers when RT rises above 1.1 V."
      }
    ],
    "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 gives the SOP8 pinout only as a shared figure and table (Section 4.1, page 5) for the ; Pin types (input, passive, output, power_in) are inferred from the functional descriptions in the da; The RT over-temperature threshold of the extracted text on the parameter table is truncated ('1. V')"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0393,
        "at": "2026-10-09T22:53:28"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588946054305746944",
        "pages": 12,
        "sha256": "3606d69203a8bad6",
        "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": "eg1252.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "eg1252-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "af40ae0b943058db9e57dedec4c74d3b7ed53d662bd1bcc4e78e7cee303c21c3",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}