LM25056APSQ

{
  "slug": "lm25056apsq",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Energy Metering ICs, WQFN-24-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "adc-dac-data conversion",
    "lm25056apsq",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm25056apsq.kicad_sym",
    "lm25056apsq.kicad_mod",
    "lm25056apsq.glb",
    "lm25056apsq.step",
    "lm25056apsq.lbr",
    "docs/hero.png",
    "docs/lm25056apsq-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm25056apsq-hero.glb",
    "lm25056apsq-hero.overlay.json"
  ],
  "component": {
    "mpn": "LM25056APSQ",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-24-EP(4x5)",
    "pin_count": 25,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Energy Metering ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm25056a",
    "parts": {
      "symbol": "lm25056apsq.kicad_sym",
      "footprint": "lm25056apsq.kicad_mod",
      "model_3d": "lm25056apsq-hero.glb",
      "model_3d_plain": "lm25056apsq.glb",
      "model_3d_step": "lm25056apsq-etched.step",
      "model_3d_step_plain": "lm25056apsq.step",
      "lbr": "lm25056apsq.lbr"
    },
    "distributor_links": {
      "lcsc": "C2653433"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T15:48:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ADR2",
        "type": "input",
        "description": "SMBus address line 2 is a three-state address input that should be connected to GND, VDD, or left floating."
      },
      {
        "number": "2",
        "name": "ADR1",
        "type": "input",
        "description": "SMBus address line 1 is a three-state address input that should be connected to GND, VDD, or left floating."
      },
      {
        "number": "3",
        "name": "ADR0",
        "type": "input",
        "description": "SMBus address line 0 is a three-state address input that should be connected to GND, VDD, or left floating."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_out",
        "description": "Internally sub-regulated 3.7V bias output that needs a 1 µF bypass capacitor to ground, and can alternatively be driven from an external 3V to 5.5V supply for low-voltage operation."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, not bonded to die; can be connected to the ground plane."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, not bonded to die; can be connected to the ground plane."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, not bonded to die; can be connected to the ground plane."
      },
      {
        "number": "8",
        "name": "VS-",
        "type": "power_in",
        "description": "Negative current-sense input to the IIN sense amplifier; the voltage across the sense resistor RS is measured from VS+ to this pin."
      },
      {
        "number": "9",
        "name": "VS+",
        "type": "power_in",
        "description": "Positive current-sense input to the IIN sense amplifier; the voltage across the sense resistor RS is measured from this pin to VS-."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, not bonded to die; can be connected to the ground plane."
      },
      {
        "number": "11",
        "name": "VIN",
        "type": "power_in",
        "description": "Positive supply input rated 3V to 17V operating (24V absolute maximum), with a small 0.1 µF ceramic bypass capacitor recommended close to the pin."
      },
      {
        "number": "12",
        "name": "ENABLE",
        "type": "input",
        "description": "Enable input with a +1.2V rising threshold; lowering it below the 75 mV hysteresis point puts the device into power-down mode."
      },
      {
        "number": "13",
        "name": "VAUX",
        "type": "input",
        "description": "Auxiliary voltage telemetry input with a full-scale input of 1.2V."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, not bonded to die; can be connected to the ground plane."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, not bonded to die; can be connected to the ground plane."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, not bonded to die; can be connected to the ground plane."
      },
      {
        "number": "17",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground, to be tied to DGND and then to a quiet system ground while keeping high-current return paths away from it."
      },
      {
        "number": "18",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect, not bonded to die; can be connected to the ground plane."
      },
      {
        "number": "19",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground, to be tied to AGND and then to a clean system ground while keeping high-current return paths away from it."
      },
      {
        "number": "20",
        "name": "SDA",
        "type": "bidirectional",
        "description": "SMBus data line."
      },
      {
        "number": "21",
        "name": "SCL",
        "type": "input",
        "description": "SMBus clock line."
      },
      {
        "number": "22",
        "name": "SMBA",
        "type": "output",
        "description": "SMBus alert line, active low."
      },
      {
        "number": "23",
        "name": "VREF",
        "type": "power_out",
        "description": "Internally generated precision 2.82V reference used for analog-to-digital conversion, which needs a 1 µF ceramic bypass capacitor to ground."
      },
      {
        "number": "24",
        "name": "DIODE",
        "type": "passive",
        "description": "External temperature-sensing connection, to be tied to a diode-configured MMBT3904 NPN transistor."
      },
      {
        "number": "25",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 package hint says WQFN-24-EP(4x5). The provided pages name the package only as WQFN-24 / WQFN (N; Pages 5-32 of the datasheet were not provided. Pin data comes from pages 2-3 and the ordering and pa; The exposed pad is printed as 'PAD' in the pin table, not as a numbered pin. It is listed with that ",
          "exposed pad 25 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0602,
        "at": "2026-10-08T15:48:25"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/lm25056a",
        "pages": 38,
        "sha256": "f097a3dedf36217b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm25056apsq.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          5.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd34955bd2f41c7d5d4f45257df2b8077e42f694598de69e58ad55ad191eecae",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm25056apsq-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6be66e5a14857a7ae0e2f4b75264712fcd5fdc3ee810b2b32377dddfaa0aa798",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}