component
TMI7608R
Public Made by Adomby adom
TMI Power Over Ethernet (PoE) Controllers, QFN-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "tmi7608r",
"title": "TMI7608R",
"brief": "TMI Power Over Ethernet (PoE) Controllers, QFN-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management (pmic)",
"tmi7608r",
"factory-2.0.0",
"extractor-text"
],
"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."
}
],
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"extractor": "extract_pins 0.3",
"factory_chain": {
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"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": [
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],
"pages_sent": 7,
"cost_usd": 0.1023,
"at": "2026-10-23T12:09:58"
},
"datasheet": {
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"pages": 29,
"sha256": "3d1ad5b3511b47b5",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 49,
"described": 49,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
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"models_3d": [
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"role": "plain",
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"centre_offset_mm": 0,
"footprint_binding": "identity",
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"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "tmi7608r-etched.step",
"role": "eda",
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"origin": "footprint origin = pad-pattern centre",
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},
"metadata": {
"specs": {
"Manufacturer": "TMI",
"Package": "QFN-48(7x7)",
"Category": "Power Management (PMIC)",
"Pins": "49"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "3d1ad5b3511b47b5859da9d27af9869925f04aa63967033101bc04e35e5ae44a",
"rows": [
{
"name": "Supply Voltage",
"symbol": "V54-AGND",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 90,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "PortN0~PortN3",
"symbol": "PortNn-AGND",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 90,
"conditions": "n=0~7",
"source_page": 6,
"source": "datasheet"
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{
"name": "All other pins",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "relative to AGND or DGND",
"source_page": 6,
"source": "datasheet"
},
{
"name": "DGND to AGND",
"symbol": "DGND-AGND",
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"typ": null,
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{
"name": "Maximum Junction Temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
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"conditions": "",
"source_page": 6,
"source": "datasheet"
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{
"name": "Storage Temperature Range",
"symbol": "",
"kind": "absolute_maximum",
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"min": -65,
"typ": null,
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{
"name": "Lead Temperature",
"symbol": "",
"kind": "absolute_maximum",
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"min": null,
"typ": null,
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"conditions": "30s, reflow",
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{
"name": "Operating Ambient Temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "ESD HBM",
"symbol": "VESD_HBM",
"kind": "absolute_maximum",
"unit": "V",
"min": -2000,
"typ": null,
"max": 2000,
"conditions": "ANSI/ESDA/JEDEC JS-001-2017, Class 2",
"source_page": 6,
"source": "datasheet"
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{
"name": "ESD CDM",
"symbol": "VESD_CDM",
"kind": "absolute_maximum",
"unit": "V",
"min": -1000,
"typ": null,
"max": 1000,
"conditions": "JS-002-2018, Class C3",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Latch-up",
"symbol": "ILATCH-UP",
"kind": "absolute_maximum",
"unit": "mA",
"min": -200,
"typ": null,
"max": 200,
"conditions": "JEDEC 78E, Class I",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Power Supply voltage",
"symbol": "V54",
"kind": "electrical",
"unit": "V",
"min": 32,
"typ": null,
"max": 60,
"conditions": "45V~57V @IEEE802.3af",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Power Supply voltage (at)",
"symbol": "V54",
"kind": "electrical",
"unit": "V",
"min": 50,
"typ": null,
"max": 60,
"conditions": "51V~57V @IEEE802.3at",
"source_page": 7,
"source": "datasheet"
},
{
"name": "V54 operating current",
"symbol": "I54",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 8,
"max": 10,
"conditions": "All ports on @w/o peripheral load current & port load current",
"source_page": 7,
"source": "datasheet"
},
{
"name": "V3P3 voltage",
"symbol": "V3P3",
"kind": "electrical",
"unit": "V",
"min": 3,
"typ": 3.3,
"max": 3.6,
"conditions": "IV3P3=0~10mA",
"source_page": 7,
"source": "datasheet"
},
{
"name": "V3P3 Undervoltage Lockout",
"symbol": "V3P3_UVLO",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 2,
"max": null,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Foldback Initial Voltage (af)",
"symbol": "VFLBK_ST",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 32,
"max": null,
"conditions": "IEEE802.3af",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Foldback Initial Voltage (at)",
"symbol": "VFLBK_ST",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 18,
"max": null,
"conditions": "IEEE802.3at",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Foldback Final Voltage",
"symbol": "VFLBK_END",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 46,
"max": null,
"conditions": "V54 - VPortN_ above which the current limit reaches VTH_FB",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Minimum Foldback Current-Limit Threshold",
"symbol": "ILIM-TH_FB",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 120,
"max": null,
"conditions": "VPortN_= V54 = 57V",
"source_page": 7,
"source": "datasheet"
},
{
"name": "RS_ Input Bias Current",
"symbol": "",
"kind": "electrical",
"unit": "μA",
"min": -2,
"typ": null,
"max": null,
"conditions": "VRS_= AGND",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output current in POWER_UP State",
"symbol": "IInrush",
"kind": "electrical",
"unit": "mA",
"min": 400,
"typ": null,
"max": 450,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Short Circuit Current Limit Threshold",
"symbol": "ILIM",
"kind": "electrical",
"unit": "mA",
"min": 400,
"typ": null,
"max": 500,
"conditions": "Class0~3",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Short Circuit Current Limit Threshold",
"symbol": "ILIM",
"kind": "electrical",
"unit": "mA",
"min": 750,
"typ": null,
"max": 1000,
"conditions": "Class4",
"source_page": 7,
"source": "datasheet"
},
{
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