TCAN3403DDFRQ1

{
  "schema_version": 1,
  "type": "component",
  "slug": "tcan3403ddfrq1",
  "title": "TCAN3403DDFRQ1",
  "brief": "TI(德州仪器) , TSOT-23-8. 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",
    "ic",
    "tcan3403ddfrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TCAN3403DDFRQ1",
    "manufacturer": "TI(德州仪器)",
    "package": "TSOT-23-8",
    "pin_count": 8,
    "category": "IC",
    "subcategory": "IC",
    "datasheet": "https://www.ti.com.cn/cn/lit/ds/symlink/tcan3403-q1.pdf",
    "parts": {
      "symbol": "tcan3403ddfrq1.kicad_sym",
      "footprint": "tcan3403ddfrq1.kicad_mod",
      "model_3d": "tcan3403ddfrq1-hero.glb",
      "model_3d_plain": "tcan3403ddfrq1-etched.glb",
      "model_3d_step": "tcan3403ddfrq1-etched.step",
      "model_3d_step_plain": "tcan3403ddfrq1.step",
      "lbr": "tcan3403ddfrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C35926232"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:26:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TXD",
        "type": "input",
        "description": "CAN transmit data input from the controller, with integrated pull-up, referenced to VIO for TCAN3403-Q1."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground connection that must be connected to the PCB ground."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "3.3V supply voltage (3V to 3.6V recommended operating range)."
      },
      {
        "number": "4",
        "name": "RXD",
        "type": "output",
        "description": "CAN receive data output, tri-stated when device powered off, referenced to VIO and only driven once VIO is present on TCAN3403-Q1."
      },
      {
        "number": "5",
        "name": "VIO",
        "type": "power_in",
        "description": "I/O supply voltage for the logic level shifter on TCAN3403-Q1, supporting 1.7V to 3.6V (this pin is SHDN on TCAN3404-Q1)."
      },
      {
        "number": "6",
        "name": "CANL",
        "type": "bidirectional",
        "description": "Low-level CAN bus input/output line, with bus fault protection to ±58V."
      },
      {
        "number": "7",
        "name": "CANH",
        "type": "bidirectional",
        "description": "High-level CAN bus input/output line, with bus fault protection to ±58V."
      },
      {
        "number": "8",
        "name": "STB",
        "type": "input",
        "description": "Standby input for mode control with integrated pull-up, so a floating or high pin selects standby mode and GND selects normal mode."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "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 5 is SHDN on TCAN3404-Q1 and VIO on TCAN3403-Q1. TCAN3403DDFRQ1 is the TCAN3403 variant, so VIO "
        ],
        "pages_sent": 10,
        "cost_usd": 0.0995,
        "at": "2026-10-22T22:26:30"
      },
      "datasheet": {
        "url": "https://www.ti.com.cn/cn/lit/ds/symlink/tcan3403-q1.pdf",
        "pages": 46,
        "sha256": "b1f664b052f46baf",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "file": "tcan3403ddfrq1.step",
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dc644a91883054d8f75e38542e63c2050dc8f2e8b7f12e1c57dcd93245fbd473",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "TI(德州仪器)",
      "Package": "TSOT-23-8",
      "Category": "",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b1f664b052f46baf09f312c1b667cbf36db2ce29ecc4644d5b41324b9e3cb399",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage I/O level shifter",
          "symbol": "VIO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "only for TCAN3403",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CAN bus I/O voltage range on CANH and CANL",
          "symbol": "VBUS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -58,
          "typ": null,
          "max": 58,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Max differential voltage between CANH and CANL",
          "symbol": "VDIFF",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -58,
          "typ": null,
          "max": 58,
          "conditions": "VDIFF = (CANH - CANL)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Logic pin input voltage",
          "symbol": "VLogic_Input",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "TXD, STB, SHDN",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Logic output voltage range (RXD)",
          "symbol": "VRXD",
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          "unit": "V",
          "min": -0.3,
          "typ": null,
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        },
        {
          "name": "RXD output current",
          "symbol": "IO(RXD)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -8,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 165,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage for I/O level shifter",
          "symbol": "VIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.7,
          "typ": null,
          "max": 3.6,
          "conditions": "only for TCAN3403",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RXD terminal high-level output current",
          "symbol": "IOH(RXD)",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": -1.5,
          "typ": null,
          "max": null,
          "conditions": "only for TCAN3403",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "RXD terminal low-level output current",
          "symbol": "IOL(RXD)",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "only for TCAN3403",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance",
          "symbol": "RΘJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 122.9,
          "max": null,
          "conditions": "DDF (SOT)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case (top) thermal resistance",
          "symbol": "RΘJC(top)",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 51.7,
          "max": null,
          "conditions": "DDF (SOT)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-board thermal resistance",
          "symbol": "RΘJB",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 45.7,
          "max": null,
          "conditions": "DDF (SOT)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current normal mode, dominant",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 42,
          "max": 55,
          "conditions": "TXD = 0 V, STB = 0 V, RL = 60 Ω, CL = open",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current normal mode, dominant",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 50,
          "max": 60,
          "conditions": "TXD = 0 V, STB = 0 V, RL = 50 Ω, CL = open",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current normal mode, recessive",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 7,
          "max": 8.2,
          "conditions": "TXD = VCC, STB = 0 V, RL = 50 Ω, CL = open",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current normal mode, dominant with bus fault",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 130,
          "conditions": "TXD = 0 V, STB = 0 V, CANH = CANL = ±25 V, RL = open, CL = open",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current standby mode (TCAN3403)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 1,
          "max": 4,
          "conditions": "TXD = STB = VIO, RL = 50 Ω, CL = open, TJ <= 150 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "I/O supply current normal mode, dominant",
          "symbol": "IIO",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 125,
          "max": 300,
          "conditions": "TXD = 0 V, STB = 0 V, RL = 60 Ω, CL = open, RXD floating",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I/O supply current normal mode, recessive",
          "symbol": "IIO",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 19,
          "max": 48,
          "conditions": "TXD = VIO, STB = 0 V, RL = 60 Ω, CL = open, RXD floating",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I/O supply current standby mode",
          "symbol": "IIO",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 9,
          "max": 15,
          "conditions": "TXD = VIO, STB = VIO, RL = 60 Ω, CL = open, RXD floating, TJ <= 150 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Undervoltage detection VCC rising",
          "symbol": "UVCC(R)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.75,
          "max": 2.9,
          "conditions": "Ramp up",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Undervoltage detection VCC falling",
          "symbol": "UVCC(F)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.5,
          "max": 2.65,
          "conditions": "Ramp down",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Undervoltage detection VIO rising (TCAN3403)",
          "symbol": "UVIO(R)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.6,
          "max": 1.65,
          "conditions": "Ramp up",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Undervoltage detection VIO falling (TCAN3403)",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.4,
          "max": 1.5,
          "conditions": "Ramp down",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dominant output voltage normal mode, CANH",
          "symbol": "VO(DOM)",
          "kind": "electrical",
          "unit": "V",
          "min": 2.25,
          "typ": null,
          "max": null,
          "conditions": "TXD = 0 V, STB, SHDN = 0 V, 50 Ω ≤ RL ≤ 65 Ω, CL = open",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dominant output voltage normal mode, CANL",
          "symbol": "VO(DOM)",
          "kind": "electrical",
          "unit": "V",
          "min": 0.5,
          "typ": null,
          "max": 1.25,
          "conditions": "TXD = 0 V, STB, SHDN = 0 V, 50 Ω ≤ RL ≤ 65 Ω, CL = open",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Recessive output voltage normal mode CANH and CANL",
          "symbol": "VO(REC)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": 1.9,
          "max": 2.25,
          "conditions": "TXD = VIO or VCC, STB, SHDN = 0 V, RL = open (no load), CL = open",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Driver symmetry",
          "symbol": "VSYM",
          "kind": "electrical",
          "unit": "V/V",
          "min": 0.9,
          "typ": null,
          "max": 1.1,
          "conditions": "TXD = 250 kHz, 1 MHz, 2.5 MHz, STB, SHDN = 0 V, RL = 60, CSPLIT = 4.7 nF, CL = open",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "DC output symmetry",
          "symbol": "VSYM_DC",
          "kind": "electrical",
          "unit": "mV",
          "min": -400,
          "typ": null,
          "max": 400,
          "conditions": "STB, SHDN = 0 V, RL = 60 Ω, CL = open",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Differential output voltage normal mode, dominant",
          "symbol": "VOD(DOM)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": 3,
          "conditions": "TXD = 0 V, STB, SHDN = 0 V, 50 Ω ≤ RL ≤ 65 Ω, CL = open",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Differential output voltage normal mode, dominant",
          "symbol": "VOD(DOM)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.4,
          "typ": null,
          "max": 3,
          "conditions": "TXD = 0 V, STB, SHDN = 0 V, 45 Ω ≤ RL ≤ 70 Ω, CL = open",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Differential output voltage normal mode, dominant",
          "symbol": "VOD(DOM)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": 3.4,
          "conditions": "TXD = 0 V, STB, SHDN = 0 V, RL = 2240 Ω, CL = open",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Differential output voltage normal mode, recessive",
          "symbol": "VOD(REC)",
          "kind": "electrical",
          "unit": "mV",
          "min": -120,
          "typ": null,
          "max": 12,
          "conditions": "TXD = VIO or VCC, STB, SHDN = 0 V, RL = 60 Ω, CL = open",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Differential output voltage normal mode, recessive",
          "symbol": "VOD(REC)",
          "kind": "electrical",
          "unit": "mV",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "TXD = VIO or VCC, STB, SHDN = 0 V, RL = open, CL = open",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Bus output voltage standby mode, CANH - CANL",
          "symbol": "VO(STB)",
          "kind": "electrical",
          "unit": "V",
          "min": -0.2,
          "typ": null,
          "max": 0.2,
          "conditions": "TXD = STB = VIO or VCC, RL = open, CL = open",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit bus output current, dominant, normal mode",
          "symbol": "IOS(DOM)",
          "kind": "electrical",
          "unit": "mA",
          "min": -115,
          "typ": null,
          "max": 115,
          "conditions": "V(CANH) = -15 V to 40 V, CANL = open, TXD = 0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input threshold voltage normal mode",
          "symbol": "VIT",
          "kind": "electrical",
          "unit": "mV",
          "min": 500,
          "typ": null,
          "max": 900,
          "conditions": "-30 V ≤ VCM ≤ 30 V, STB, SHDN = 0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Input threshold standby mode, TCAN3403",
          "symbol": "VIT(STB)",
          "kind": "electrical",
          "unit": "mV",
          "min": 400,
          "typ": null,
          "max": 1150,
          "conditions": "VIO = 3 V to 3.6 V, -30 V ≤ VCM ≤ 30 V, STB = VIO",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Hysteresis voltage for input threshold normal mode",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "-30 V ≤ VCM ≤ 30 V, STB, SHDN = 0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Common mode range normal and standby modes",
          "symbol": "VCM",
          "kind": "electrical",
          "unit": "V",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Differential input resistance",
          "symbol": "RID",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 25,
          "typ": null,
          "max": 50,
          "conditions": "TXD = VIO, STB = 0 V, -30 V ≤ VCM ≤ 30 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Single ended input resistance (CANH or CANL)",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 13,
          "typ": null,
          "max": 25,
          "conditions": "TXD = VIO, STB = 0 V, -30 V ≤ VCM ≤ 30 V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Input resistance matching",
          "symbol": "RIN(M)",
          "kind": "electrical",
          "unit": "%",
          "min": -3,
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