main
Ray slm8254aav: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) 4f19577
{
  "schema_version": 1,
  "type": "component",
  "slug": "slm8254aav",
  "title": "SLM8254AAV",
  "brief": "SOLA IC Battery Management, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "slm8254aav"
  ],
  "component": {
    "mpn": "SLM8254AAV",
    "manufacturer": "SOLA IC",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2308221104_SOLA-IC-SLM8254AAV_C7541669.pdf",
    "parts": {
      "symbol": "slm8254aav.kicad_sym",
      "footprint": "slm8254aav.kicad_mod",
      "model_3d": "slm8254aav-etched.glb",
      "model_3d_plain": "slm8254aav.glb",
      "model_3d_step": "slm8254aav-etched.step",
      "model_3d_step_plain": "slm8254aav.step",
      "lbr": "slm8254aav.lbr"
    },
    "distributor_links": {
      "lcsc": "C7541669"
    },
    "pins": [
      {
        "number": "1",
        "name": "COP",
        "type": "output",
        "description": "Charge-control FET gate drive terminal (Nch open-drain output). Drives the external charge-path N-MOSFET; goes high (through external pull-up) to disable charging on overcharge or 0V-charge inhibit."
      },
      {
        "number": "2",
        "name": "VMP",
        "type": "input",
        "description": "Voltage sense terminal between VC1 and VMP, used as the overcurrent-3 (charger over-current / charger-detect) detection input. Internally tied to VDD via ~1 MΩ (R_VMD) and to VSS via ~900 kΩ (R_VMS)."
      },
      {
        "number": "3",
        "name": "DOP",
        "type": "output",
        "description": "Discharge-control FET gate drive terminal (CMOS output, VSS↔VDD). Drives the external discharge-path N-MOSFET; goes low to disable discharge on overdischarge or overcurrent 1/2/3."
      },
      {
        "number": "4",
        "name": "VINI",
        "type": "input",
        "description": "Voltage sense terminal between VSS and VINI, used as the overcurrent-1 and overcurrent-2 detection input. Connect to the pack's V- (load) side through the sense resistance of the series FETs."
      },
      {
        "number": "5",
        "name": "CDT",
        "type": "passive",
        "description": "Delay-capacitor terminal for overdischarge detection delay (t_DL) and overcurrent-1 detection delay (t_IOV1). Typical external capacitor 0.1 µF sets t_DL ≈ 100 ms, t_IOV1 ≈ 10 ms."
      },
      {
        "number": "6",
        "name": "CCT",
        "type": "passive",
        "description": "Delay-capacitor terminal for overcharge detection delay (t_CU). Typical external capacitor 0.1 µF sets t_CU ≈ 1 s."
      },
      {
        "number": "7",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply input; connects to the negative terminal of the bottom cell (cell 4 in 4-series mode)."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "9",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "10",
        "name": "SEL",
        "type": "input",
        "description": "3/4-series select input. Tie to VSS for 3-cell mode, tie to VDD for 4-cell mode. V_SELH ≥ VDD×0.8, V_SELL ≤ VDD×0.2."
      },
      {
        "number": "11",
        "name": "CTL",
        "type": "input",
        "description": "Control input to enable/disable the charge and discharge FETs (COP and DOP). V_CTLH ≥ VDD×0.8, V_CTLL ≤ VDD×0.2."
      },
      {
        "number": "12",
        "name": "VC4",
        "type": "input",
        "description": "Sense pin: negative terminal of cell 3 / positive terminal of cell 4. Used for per-cell overcharge and overdischarge detection."
      },
      {
        "number": "13",
        "name": "VC3",
        "type": "input",
        "description": "Sense pin: negative terminal of cell 2 / positive terminal of cell 3. Used for per-cell overcharge and overdischarge detection."
      },
      {
        "number": "14",
        "name": "VC2",
        "type": "input",
        "description": "Sense pin: negative terminal of cell 1 / positive terminal of cell 2. Used for per-cell overcharge and overdischarge detection."
      },
      {
        "number": "15",
        "name": "VC1",
        "type": "input",
        "description": "Positive terminal sense pin of cell 1 (the top-most cell). Used together with VDD for cell-1 voltage detection."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply input; connects to the positive terminal of cell 1 (the pack's +) via a series resistor. Absolute max VSS+26 V; operating VDD-VSS = 3 V to 24 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2308221104_SOLA-IC-SLM8254AAV_C7541669.pdf",
        "pages": 22,
        "sha256": "df2f7926e9b67b0b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.8625,
        -2.275
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TSSOP-16_4.4x5mm_P0.65mm@sha256:fbac79fc5f310754",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "slm8254aav.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "slm8254aav-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cfe5dbb992457fe6bdbb6e5ada43d721602c73b63f658790b029f3d746535b06",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SOLA IC",
      "Package": "TSSOP-16",
      "Category": "PMIC",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "slm8254aav"
  ],
  "discovery_pitch": "SLM8254AAV (SOLA IC) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "slm8254aav.kicad_sym",
    "slm8254aav.kicad_mod",
    "slm8254aav.glb",
    "slm8254aav.step",
    "slm8254aav-etched.step",
    "slm8254aav.lbr",
    "docs/hero.png",
    "docs/slm8254aav-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SLM8254AAV",
      "kind": "packaging"
    },
    {
      "mpn": "SLM8254AAVAAF",
      "kind": "packaging"
    },
    {
      "mpn": "SLM8254AAVAAN",
      "kind": "packaging"
    },
    {
      "mpn": "SLM8254AAVAAQ",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T06:14:47.093Z"
}