TPS23754PWP

{
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  "type": "component",
  "slug": "tps23754pwp",
  "title": "TPS23754PWP",
  "brief": "Texas Instruments Power Over Ethernet (PoE) Controllers, HTSSOP-20. 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)",
    "tps23754pwp",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "TPS23754PWP",
    "manufacturer": "Texas Instruments",
    "package": "HTSSOP-20",
    "pin_count": 21,
    "category": "Power Management (PMIC)",
    "subcategory": "Power Over Ethernet (PoE) Controllers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tps23754-1",
    "parts": {
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      "lbr": "tps23754pwp.lbr"
    },
    "distributor_links": {
      "lcsc": 2867063,
      "digikey": "296-24369-5-ND",
      "mouser": "595-TPS23754PWP"
    },
    "distributor_check": {
      "checked_at": "2026-10-06T16:58:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-24369-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TPS23754PWP",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "CTL",
        "type": "input",
        "description": "Control loop input to pulse-width modulator (PWM) driven by output regulation feedback; use VB as pullup."
      },
      {
        "number": "2",
        "name": "VB",
        "type": "power_out",
        "description": "5.1-V regulated bias rail for DC-DC control circuits and feedback optocoupler; bypass with 0.1-μF capacitor to ARTN."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "bidirectional",
        "description": "Current sense input for DC-DC converter switching MOSFET connected to RCS resistor; internal slope compensation and current limiting."
      },
      {
        "number": "4",
        "name": "COM",
        "type": "power_in",
        "description": "Gate driver return path; connect to ARTN and RTN on circuit board."
      },
      {
        "number": "5",
        "name": "GATE",
        "type": "output",
        "description": "Gate drive output for main switching MOSFET of DC-DC converter; held low when converter is disabled."
      },
      {
        "number": "6",
        "name": "VC",
        "type": "bidirectional",
        "description": "DC-DC controller bias voltage supply; connect minimum 0.47-μF ceramic capacitor to ARTN and larger capacitor for power start-up."
      },
      {
        "number": "7",
        "name": "GAT2",
        "type": "output",
        "description": "Gate drive output for secondary switching MOSFET of DC-DC converter; low when converter is disabled."
      },
      {
        "number": "8",
        "name": "ARTN",
        "type": "power_in",
        "description": "DC-DC converter analog return; tie to RTN and COM on circuit board."
      },
      {
        "number": "9",
        "name": "RTN",
        "type": "power_in",
        "description": "Output terminal of PoE hotswap MOSFET; serves as PoE power return after internal switch."
      },
      {
        "number": "10",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative power rail connection for PoE source."
      },
      {
        "number": "11",
        "name": "VDD1",
        "type": "power_in",
        "description": "Source of DC-DC converter start-up current; typically connect to VDD for normal applications."
      },
      {
        "number": "12",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive PoE input power rail supplying PoE interface circuits; bypass with 0.1-μF capacitor and protect with TVS."
      },
      {
        "number": "13",
        "name": "DEN",
        "type": "bidirectional",
        "description": "PoE detection pin; connect 24.9-kΩ resistor to VDD for detection signature or pull to VSS to disable hotswap MOSFET."
      },
      {
        "number": "14",
        "name": "PPD",
        "type": "input",
        "description": "Pre-power detection input; raising above 1.55 V enables hotswap MOSFET and activates T2P output."
      },
      {
        "number": "15",
        "name": "CLS",
        "type": "input",
        "description": "Classification current programming pin; connect resistor to VSS to set device power class per IEEE 802.3at standard."
      },
      {
        "number": "16",
        "name": "DT",
        "type": "input",
        "description": "Dead-time programming pin; connect resistor to ARTN to set delay between GATE and GAT2 to prevent MOSFET overlap."
      },
      {
        "number": "17",
        "name": "APD",
        "type": "input",
        "description": "Adapter presence detection input; raising above 1.5 V disables hotswap switch and forces T2P active."
      },
      {
        "number": "18",
        "name": "BLNK",
        "type": "input",
        "description": "Current-sense blanking period pin; connect to ARTN for internal blanking or resistor for programmable blanking period."
      },
      {
        "number": "19",
        "name": "FRS",
        "type": "input",
        "description": "Frequency and synchronization pin; connect resistor to ARTN to program converter switching frequency."
      },
      {
        "number": "20",
        "name": "T2P",
        "type": "output",
        "description": "Type 2 Power Detection output; active low when Type 2 classification, PPD, or APD is active."
      },
      {
        "number": "21",
        "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-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "exposed pad 21 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.1919,
        "at": "2026-10-06T16:58:33"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tps23754-1",
        "pages": 48,
        "sha256": "c59f93aeb3bed3e6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "HTSSOP-20",
      "Category": "Power Management (PMIC)",
      "Pins": "21"
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "TPS23754PWP (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}