main
John Lauer Hero 16:10, provenance 0d8a188 3d ago
{
  "schema": "adom/component-provenance@1",
  "mpn": "LMQ61460AFSQRJRRQ1",
  "manufacturer": "Texas Instruments",
  "classification_legend": {
    "manufacturer-supplied": "manufacturer bytes, untouched",
    "source-derived": "written by Adom from cited manufacturer documents",
    "AI-created": "geometry modelled by an AI from cited drawings; no manufacturer CAD content",
    "derived": "generated by a tool from the files above"
  },
  "sources": [
    {
      "document": "TI datasheet SNVSBP4D, LMQ61460-Q1 (Rev D, March 2020, revised August 2026), 59 pages",
      "url": "https://www.ti.com/lit/ds/symlink/lmq61460-q1.pdf",
      "retrieved_utc": "2026-10-17T16:33:04Z",
      "sha256": "75324079b4cc7d85b4c3da0bc89fb6fd3e682ca8178f689d8707ffcedbd78b6b",
      "pages_used": {
        "p.1": "features, 3 V to 36 V, 6 A, AEC-Q100 grade 1",
        "p.4": "device comparison table (AFS = FPWM, spread spectrum)",
        "p.5": "Figure 5-1 RJR top view and Table 5-1 pin functions",
        "p.6-7": "absolute maximum and recommended operating conditions, thermal",
        "p.52": "orderable addendum (MSL 2/260 C, marking Q6146Q, 3000 T&R)",
        "p.54": "tape and reel (pin 1 quadrant Q2)",
        "p.56": "RJR0014A package outline",
        "p.57": "example board layout (4223976/H)",
        "p.58": "example stencil design"
      },
      "redistribution": "Not redistributed (TI website terms). Linked by URL only."
    },
    {
      "document": "TI CAD (Ultra Librarian) symbol/footprint/STEP for LMQ61460-Q1 RJR",
      "url": "https://webench.ti.com/cad/cad.cgi?gpn=LMQ61460-Q1&pkg=RJR&pin=14",
      "result": "Not obtained (login required); no manufacturer CAD used."
    }
  ],
  "distributors_checked": {
    "date": "2026-10-17",
    "tool": "adom-parts-search",
    "mouser": "595-Q61460AFSQRJRRQ1",
    "digikey": "296-LMQ61460AFSQRJRRQ1TR-ND",
    "lcsc": "C1518767"
  },
  "files": [
    {
      "file": "lmq61460afsqrjrrq1.kicad_sym",
      "sha256": "8e633073f706602e73e85bab75857cd696346c7717cb77b1227d0284282cdee5",
      "bytes": 3894,
      "classification": "source-derived",
      "source": "SNVSBP4D p.5 Figure 5-1 and Table 5-1",
      "assumptions": [
        "Electrical types: VIN/BIAS/GND power_in, SW and VCC power_out, PGOOD open_collector, FB and EN/SYNC input, RT/CBOOT/RBOOT passive",
        "Two-column functional layout with group captions"
      ]
    },
    {
      "file": "lmq61460afsqrjrrq1.kicad_mod",
      "sha256": "fcab40bb8fa48d2f39e07bc3885748fb804b1ceddbf0015a8a3f5ec64041ce43",
      "bytes": 11588,
      "classification": "source-derived",
      "source": "SNVSBP4D p.57 RJR0014A example board layout (copper), p.58 example stencil (paste)",
      "assumptions": [
        "Pad outlines extracted from the PDF vector paths (pdftocairo -svg), scale checked on pin 10 = 2.400 x 0.400 mm",
        "Rect pads drawn as roundrect R0.05 (drawing: (R0.05) TYP); corner pads 1/5/9/11 are L-shaped custom pads, R0.12 inner corner",
        "Pin 10 paste split into two 1.1 x 0.4 apertures as on p.58; other paste = copper",
        "Mask expansion left to board defaults; TI recommends NSMD with 0.07 mm max; pad gaps are 0.20 to 0.25 mm, check mask webs with the fab",
        "No silkscreen outline (pads overhang the body); pin-1 dot at (-2.55, -1.95)"
      ],
      "verification": "kicad-cli 10.0.3 pcb drc on a scratch board: parsed; 0 violations for this footprint"
    },
    {
      "file": "lmq61460afsqrjrrq1.step",
      "sha256": "95f64972a766acbfbecf3a287397ecff1701dd7ac7b05b7f0660998b93e55093",
      "bytes": 486599,
      "classification": "AI-created",
      "source": "SNVSBP4D p.56 RJR0014A package outline",
      "assumptions": [
        "Body 4.0 x 3.5 x 0.90 (A = 0.8 to 1.0), terminals 0.2 thick flush to the edges, from the bottom view mirrored to the top view",
        "0.4 mm pin-1 index dot is cosmetic"
      ],
      "frame": "mm, Z-up, seating plane / PCB top z = 0, X/Y = KiCad footprint frame with Y mirrored; footprint (model) offset and rotation 0",
      "licence": "CC-BY-4.0 (Adom-authored, no manufacturer CAD content)",
      "features": "provenance/lmq61460afsqrjrrq1-features.json"
    },
    {
      "file": "lmq61460afsqrjrrq1.glb",
      "sha256": "f275801ceff7e54a90af753d82948430b60e6ca6cfbe81ceb4c83e96f67ab329",
      "bytes": 65656,
      "classification": "derived",
      "source": "lmq61460afsqrjrrq1.step via step2glb convert (service-step2glb, XCAF colours kept)"
    },
    {
      "file": "lmq61460afsqrjrrq1-etched.step",
      "sha256": "f0767cefb49a986e7c972d251e9472b003640b617fa2c20ccf9ae12639630fb0",
      "bytes": 857534,
      "classification": "derived (AI-created + virtual MPN mark)",
      "source": "lmq61460afsqrjrrq1.step + adom-aiflow-etch",
      "mark": {
        "text": "LMQ61460AFSQRJRRQ1",
        "surface": "package top, two lines, along the 3.5 mm axis, clear of the pin-1 dot",
        "tool": "adom-aiflow-etch (service-step2glb /laser-etch, flat light mark 5 um above the face)",
        "gate": "PASS",
        "note": "Virtual identification aid. TI's real top marking is Q6146Q (SNVSBP4D p.52)."
      },
      "plan": "provenance/lmq61460afsqrjrrq1-etched.mark-plan.json",
      "check": "provenance/lmq61460afsqrjrrq1-etched.check.json"
    },
    {
      "file": "lmq61460afsqrjrrq1-etched.glb",
      "sha256": "69159c721318cc29f5a927048174ebdfb12e8d26d809d6143b079a840923d786",
      "bytes": 85484,
      "classification": "derived",
      "source": "lmq61460afsqrjrrq1-etched.step via step2glb convert"
    },
    {
      "file": "lmq61460afsqrjrrq1-hero.glb",
      "sha256": "dcb5802f6b6b09f63730397d38bc66d92379d6b4cb2da6d45c28dfe12de32569",
      "bytes": 197184,
      "classification": "derived (presentation only, not for board use)",
      "source": "lmq61460afsqrjrrq1-etched.glb + lmq61460afsqrjrrq1.kicad_mod + page.json pins via component-hero hero_glb.py (adom-hero 1.4)",
      "align": {
        "ok": true,
        "centre_offset_mm": 0.0,
        "tolerance_mm": 0.352,
        "orientation_flipped": false,
        "contacts_bbox_mm": [
          -2.0,
          2.0,
          -1.75,
          1.75
        ],
        "pads_bbox_mm": [
          -2.2,
          2.2,
          -1.95,
          1.95
        ],
        "seating_z_mm": -0.0
      },
      "sidecar": "lmq61460afsqrjrrq1-hero.overlay.json"
    },
    {
      "file": "lmq61460afsqrjrrq1-hero.overlay.json",
      "sha256": "56b9de312de47ef9a9c3bc600699687e5b4f48f57b2fe11beaafbf739a8031e8",
      "bytes": 5396,
      "classification": "derived",
      "source": "hero_glb.py sidecar"
    },
    {
      "file": "lmq61460afsqrjrrq1.lbr",
      "sha256": "f83cf47a7dccdbf2839977786a6db5ee64bb8e9160389c99d21f8ce34df2ba9b",
      "bytes": 9769,
      "classification": "derived",
      "source": "adom-lbr generate from the .kicad_sym + .kicad_mod (lint PASS)"
    },
    {
      "file": "viewers/symbol.html",
      "sha256": "94ad42498609a6d1281ddbe0875517f5970e6a787de454d9841288e3b557adb0",
      "bytes": 190863,
      "classification": "derived",
      "source": "adom-symbol embed"
    },
    {
      "file": "viewers/footprint.html",
      "sha256": "d0d1b367e32659c9090da3ed8898687d25395eeb29a4b4948aa6a59dd7541205",
      "bytes": 22540,
      "classification": "derived",
      "source": "adom-footprint embed"
    },
    {
      "file": "docs/hero.png",
      "sha256": "6cafb743e1ad84507734dcec3472c5e852edc6c48a6bcd3f95e13a1939779399",
      "bytes": 29859,
      "classification": "derived",
      "source": "step2glb thumbnail (iso) of the etched STEP"
    }
  ],
  "mpn_marking": {
    "text": "LMQ61460AFSQRJRRQ1",
    "surface": "package top, two lines, along the 3.5 mm axis, clear of the pin-1 dot",
    "tool": "adom-aiflow-etch (service-step2glb /laser-etch, flat light mark 5 um above the face)",
    "gate": "PASS",
    "note": "Virtual identification aid. TI's real top marking is Q6146Q (SNVSBP4D p.52)."
  },
  "verification": [
    "step2glb features on every STEP: Z-up, seated (see *-features.json); footprint (model) binding is identity",
    "component-hero align guard: ok, centre offset 0.0 mm",
    "independent per-pad seat check (scratch script): every copper pad has metal contact geometry at the seating plane inside its outline: OK",
    "adom-lbr lint PASS; adom-symbol / adom-footprint embed OK"
  ],
  "unresolved": [
    "TI's own CAD (Ultra Librarian) not obtained (login); footprint and model are written from the datasheet drawings",
    "SW (pad 10) has no signal-name label in the hero: adom-hero 1.4 treats a pad more than 4x the median area inside the pad field as an exposed pad"
  ],
  "generated_utc": "2026-10-17",
  "generator": "Claude Code (Anthropic Claude) for Adom; CadQuery 2.8.0 / OCP 7.9.3; KiCad file format 9 (sym 20241209, mod 20241229); step2glb service; adom-aiflow-etch; component-hero hero_glb.py (adom-hero 1.4); adom-lbr; adom-symbol / adom-footprint embed",
  "licence": "Adom-authored files: CC-BY-4.0 (see LICENSE). Manufacturer documents keep their own terms and are not redistributed here."
}