TMI7608R

{
  "slug": "tmi7608r",
  "version": "0.1.0",
  "type": "component",
  "description": "TMI Power Over Ethernet (PoE) Controllers, QFN-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tmi7608r",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tmi7608r.kicad_sym",
    "tmi7608r.kicad_mod",
    "tmi7608r.glb",
    "tmi7608r.step",
    "tmi7608r.lbr",
    "docs/hero.png",
    "docs/tmi7608r-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tmi7608r-hero.glb",
    "tmi7608r-hero.overlay.json",
    "tmi7608r-etched.glb"
  ],
  "component": {
    "mpn": "TMI7608R",
    "manufacturer": "TMI",
    "package": "QFN-48(7x7)",
    "pin_count": 49,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Over Ethernet (PoE) Controllers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c04e9253a17f34a4e0fb9ea25e6b8092.pdf",
    "parts": {
      "symbol": "tmi7608r.kicad_sym",
      "footprint": "tmi7608r.kicad_mod",
      "model_3d": "tmi7608r-hero.glb",
      "model_3d_plain": "tmi7608r-etched.glb",
      "model_3d_step": "tmi7608r-etched.step",
      "model_3d_step_plain": "tmi7608r.step",
      "lbr": "tmi7608r.lbr"
    },
    "distributor_links": {
      "lcsc": "C29779855"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:10:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "3",
        "name": "PortN0",
        "type": "input",
        "description": "Port 0 negative feeding voltage input."
      },
      {
        "number": "4",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "5",
        "name": "PortN1",
        "type": "input",
        "description": "Port 1 negative feeding voltage input."
      },
      {
        "number": "6",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "8",
        "name": "PortN2",
        "type": "input",
        "description": "Port 2 negative feeding voltage input."
      },
      {
        "number": "9",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "10",
        "name": "PortN3",
        "type": "input",
        "description": "Port 3 negative feeding voltage input."
      },
      {
        "number": "11",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "12",
        "name": "SCAN_MODE",
        "type": "input",
        "description": "Internally pulled down to AGND; connect to AGND for normal operation."
      },
      {
        "number": "13",
        "name": "ALT_A/B",
        "type": "input",
        "description": "Latched at power-on reset to select ALT_A (0, default) or ALT_B (1); internally pulled down to DGND."
      },
      {
        "number": "14",
        "name": "EN_CL4+",
        "type": "input",
        "description": "Class4+ enable input referenced to DGND, internally pulled down; leave open for 802.3at mode or connect to V3P3 to enable Class4+ classification, latched at power-up or reset."
      },
      {
        "number": "15",
        "name": "PMAX",
        "type": "input",
        "description": "Maximum total power setting pin; connect a 75kΩ resistor to AGND, Pmax=Rmax*78uA*V54, latched at power-up or reset."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "17",
        "name": "V54",
        "type": "power_in",
        "description": "Main power supply input (44~57V); add a 1uF capacitor between V54 and AGND."
      },
      {
        "number": "18",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "19",
        "name": "AUTO",
        "type": "input",
        "description": "Auto/shutdown mode input referenced to AGND, internally pulled up to V3P3; leave open for auto mode or connect to DGND for default shutdown mode, latched at power-up or reset."
      },
      {
        "number": "20",
        "name": "V3P3",
        "type": "power_out",
        "description": "Built-in 3.3V regulator output (6mA for external devices) when EnB_Reg is tied to AGND, or external 3.3V (6mA minimum) input when EnB_Reg is tied to 3.3V; use a 4.7uF capacitor to AGND."
      },
      {
        "number": "21",
        "name": "2-EVENT",
        "type": "input",
        "description": "2-Event classification select referenced to AGND, internally pulled up; leave open to enable, force low to disable."
      },
      {
        "number": "22",
        "name": "VPP",
        "type": "passive",
        "description": "eFuse power, internally connected; leave unconnected."
      },
      {
        "number": "23",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "24",
        "name": "EnB_Reg",
        "type": "input",
        "description": "Enables or disables the internal 3.3V regulator (see V3P3); internally pulled up to V3P3."
      },
      {
        "number": "25",
        "name": "24V_EN",
        "type": "input",
        "description": "Latched at power-on reset to enable (1) or disable (0, default) 24V mode; internally pulled down to DGND."
      },
      {
        "number": "26",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "27",
        "name": "PortN4",
        "type": "input",
        "description": "Port 4 negative feeding voltage input."
      },
      {
        "number": "28",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "29",
        "name": "PortN5",
        "type": "input",
        "description": "Port 5 negative feeding voltage input."
      },
      {
        "number": "30",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "31",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "32",
        "name": "PortN6",
        "type": "input",
        "description": "Port 6 negative feeding voltage input."
      },
      {
        "number": "33",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "34",
        "name": "PortN7",
        "type": "input",
        "description": "Port 7 negative feeding voltage input."
      },
      {
        "number": "35",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "36",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "37",
        "name": "LED_CLK",
        "type": "output",
        "description": "Serial LED clock output."
      },
      {
        "number": "38",
        "name": "LED_DAT",
        "type": "output",
        "description": "Serial LED data output, internally pulled up to DV3P3."
      },
      {
        "number": "39",
        "name": "SCL/EE_CLK",
        "type": "bidirectional",
        "description": "I2C clock input when AUTO=0; clock output to EEPROM when AUTO=1."
      },
      {
        "number": "40",
        "name": "SDAO",
        "type": "output",
        "description": "I2C serial data output."
      },
      {
        "number": "41",
        "name": "SDAI/EE_DAT",
        "type": "input",
        "description": "I2C serial data input when AUTO=0; data input from EEPROM when AUTO=1."
      },
      {
        "number": "42",
        "name": "INTB",
        "type": "output",
        "description": "Active-low interrupt output."
      },
      {
        "number": "43",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground, should be connected to AGND."
      },
      {
        "number": "44",
        "name": "DV3P3",
        "type": "power_in",
        "description": "Digital 3.3V supply, internally connected to V3P3 and usually also connected externally to V3P3."
      },
      {
        "number": "45",
        "name": "RstN",
        "type": "input",
        "description": "Active-low reset input for the TMI7608R."
      },
      {
        "number": "46",
        "name": "AD2",
        "type": "input",
        "description": "I2C device address bit AD2."
      },
      {
        "number": "47",
        "name": "AD1",
        "type": "input",
        "description": "I2C device address bit AD1."
      },
      {
        "number": "48",
        "name": "AD0",
        "type": "input",
        "description": "I2C device address bit AD0."
      },
      {
        "number": "49",
        "name": "EPAD",
        "type": "power_in",
        "description": "Exposed pad, should be connected to AGND."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin types for V3P3 (regulator output or external input depending on EnB_Reg), VPP, and SCL/EE_CLK (i"
        ],
        "pages_sent": 7,
        "cost_usd": 0.1023,
        "at": "2026-10-23T12:09:58"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c04e9253a17f34a4e0fb9ea25e6b8092.pdf",
        "pages": 29,
        "sha256": "3d1ad5b3511b47b5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tmi7608r.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tmi7608r-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a31339688e5421225182e36b8bc3bd41df5611db3fc51076d10dadfa77799e76",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}