LD7575PN

{
  "slug": "ld7575pn",
  "version": "0.1.0",
  "type": "component",
  "description": "Leadtrend Tech AC-DC Controllers And Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "ld7575pn",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ld7575pn.kicad_sym",
    "ld7575pn.kicad_mod",
    "ld7575pn.glb",
    "ld7575pn.step",
    "ld7575pn.lbr",
    "docs/hero.png",
    "docs/ld7575pn-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ld7575pn-hero.glb",
    "ld7575pn-hero.overlay.json",
    "ld7575pn-etched.glb"
  ],
  "component": {
    "mpn": "LD7575PN",
    "manufacturer": "Leadtrend Tech",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588941210182692864",
    "parts": {
      "symbol": "ld7575pn.kicad_sym",
      "footprint": "ld7575pn.kicad_mod",
      "model_3d": "ld7575pn-hero.glb",
      "model_3d_plain": "ld7575pn-etched.glb",
      "model_3d_step": "ld7575pn-etched.step",
      "model_3d_step_plain": "ld7575pn.step",
      "lbr": "ld7575pn.lbr"
    },
    "distributor_links": {
      "lcsc": "C13680"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T09:09:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RT",
        "type": "input",
        "description": "Programs the switching frequency through a resistor to ground, with f_SW = 65.0 kHz × (100 kΩ / RT) and a suggested operating range of 50 kHz to 130 kHz."
      },
      {
        "number": "2",
        "name": "COMP",
        "type": "input",
        "description": "Voltage feedback input from the secondary-side TL431 through a photocoupler; pulling it below 1.2 V turns the gate output off, and VCOMP held above the 5.0 V OLP threshold for more than 30 ms activates over-load protection."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "Current sense input for peak-current control and pulse-by-pulse limiting, with a maximum threshold of 0.85 V and 350 ns leading-edge blanking; an R-C filter is strongly recommended in higher-power designs to keep the negative turn-on spike above -0.3 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the controller and the gate driver."
      },
      {
        "number": "5",
        "name": "OUT",
        "type": "output",
        "description": "Gate drive output (CMOS buffer, typical 500 mA drive capability) that drives the external power MOSFET directly, with a gate pull-low resistor recommended for fault protection."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin with a recommended range of 11 V to 25 V and a Vcc capacitor of 10 µF to 47 µF; UVLO turns on at 16 V and off at 10 V, and OVP trips at 27.5 V typical (absolute maximum 30 V)."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Unconnected pin; no electrical connection is specified."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "input",
        "description": "Connect to the positive terminal of the bulk capacitor to supply start-up current (HV rated -0.3 V to 500 V); the HV current source turns off once VCC reaches UVLO(on), and a 10 kΩ series resistor is recommended on the Hi-V path."
      }
    ],
    "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 schema has no spec field, so no headline electrical specs were returned; limits quoted in pin de; Pin types are inferred from function, not stated by the datasheet: RT, COMP, CS and HV are typed as ; The top-view pin diagram on page 2 was flattened to text; the pin-number-to-name mapping was taken f"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0649,
        "at": "2026-10-19T09:07:04"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588941210182692864",
        "pages": 18,
        "sha256": "52a54b667919e381",
        "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": "ld7575pn.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ld7575pn-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4857f5282434a5df7f3595e57594fae8a677c7818e142173abd593961d02bf0b",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}