main
Ray Set visibility: public d656a33 8d ago
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649
{
  "schema_version": 1,
  "type": "component",
  "slug": "tc7340",
  "title": "TC7340",
  "brief": "Shenzhen Fuman AC-DC Controllers & Regulators, DIP-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",
    "power management ics",
    "tc7340",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TC7340",
    "manufacturer": "Shenzhen Fuman",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/416186320048beacbb8b66acb8fe907e.pdf",
    "parts": {
      "symbol": "tc7340.kicad_sym",
      "footprint": "tc7340.kicad_mod",
      "model_3d": "tc7340-hero.glb",
      "model_3d_plain": "tc7340-etched.glb",
      "model_3d_step": "tc7340-etched.step",
      "model_3d_step_plain": "tc7340.step",
      "lbr": "tc7340.lbr"
    },
    "distributor_links": {
      "lcsc": "C2931994"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T00:53:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD-G",
        "type": "power_in",
        "description": "Internal gate-driver supply terminal; the datasheet gives an absolute maximum input voltage of -0.3 V to 30 V and says gate drive strength can be tuned by a resistor between VDD and VDD-G."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply pin, normally powered from the transformer auxiliary winding; it is rated -0.3 V to 30 V absolute maximum, clamps at 30.5 V typical at 10 mA, and enters UVLO at 8.4-10.4 V (on) and 14.2-16.2 V (off)."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Feedback input for the PWM duty-cycle control and overload detection; absolute maximum voltage is -0.3 V to 7 V, with 4.9 V typical open-circuit voltage and an overload threshold of 3.85 V."
      },
      {
        "number": "4",
        "name": "SENSE",
        "type": "input",
        "description": "Current-sense input for peak-current limiting and cycle-by-cycle protection; absolute maximum voltage is -0.3 V to 7 V, with an overcurrent threshold of 0.77 V typical (0.72-0.82 V) and 40 kΩ input impedance."
      },
      {
        "number": "5",
        "name": "DRAIN",
        "type": "output",
        "description": "Drain of the internal high-voltage power MOSFET; rated 650 V breakdown (absolute maximum drain voltage -0.3 V to 650 V), 2.2 Ω typical RDS(on), and 2 A peak drain current."
      },
      {
        "number": "6",
        "name": "DRAIN",
        "type": "output",
        "description": "Drain of the internal high-voltage power MOSFET, bonded in parallel with pin 5; rated 650 V breakdown, 2.2 Ω typical RDS(on), and 2 A peak drain current."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the controller."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the controller, bonded in parallel with pin 7."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet lists these as a combined entry '5/6 DRAIN'; they are split into two rows here with th; The datasheet lists these as a combined entry '7/8 GND'; they are split into two rows here. The 'bon; The pin-diagram graphic on page 1 is garbled in the text extraction, so pin positions were taken fro"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0346,
        "at": "2026-10-31T00:53:28"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/416186320048beacbb8b66acb8fe907e.pdf",
        "pages": 7,
        "sha256": "7bb5e1076045cfe2",
        "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"
    },
    "models_3d": [
      {
        "file": "tc7340.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tc7340-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1f4a13e223d303fc88c4b92b1c4710eee4e333c414440035425faac83ef0d578",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen Fuman",
      "Package": "DIP-8",
      "Category": "Power Management ICs",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7bb5e1076045cfe2d8bc95a9f2d93bd7fe2f2709e2b85efd1145b4dffc983392",
      "rows": [
        {
          "name": "Built-in MOS drain voltage",
          "symbol": "VDrain",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 650,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD input voltage",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD-G input voltage",
          "symbol": "VVDD-G",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD clamp continuous current",
          "symbol": "IDD",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FB input voltage",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SENSE input voltage",
          "symbol": "VSENSE",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature (min/max)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -20,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature (min/max)",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 160,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "Tr",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "soldering 10 s",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Startup current",
          "symbol": "I_VDD_ST",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 5,
          "max": 20,
          "conditions": "VDD=12.5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "UVLO turn-on threshold voltage",
          "symbol": "UVLO_ON",
          "kind": "electrical",
          "unit": "V",
          "min": 8.4,
          "typ": 9.4,
          "max": 10.4,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "UVLO turn-off threshold voltage",
          "symbol": "UVLO_OFF",
          "kind": "electrical",
          "unit": "V",
          "min": 14.2,
          "typ": 15.2,
          "max": 16.2,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "OVP_ON overvoltage protection threshold",
          "symbol": "OVP_ON",
          "kind": "electrical",
          "unit": "V",
          "min": 26.8,
          "typ": 28.3,
          "max": 29.8,
          "conditions": "VDD=16VC,CS=0V, FB=3V; raise VDD until GATE off",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FB open-circuit voltage",
          "symbol": "VFB_Open",
          "kind": "electrical",
          "unit": "V",
          "min": 4.5,
          "typ": 4.9,
          "max": 5.6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overload protection FB threshold voltage",
          "symbol": "VTH_PL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.85,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Current limit threshold",
          "symbol": "VTH_OC",
          "kind": "electrical",
          "unit": "V",
          "min": 0.72,
          "typ": 0.77,
          "max": 0.82,
          "conditions": "FB=3.3V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum duty cycle",
          "symbol": "D_max",
          "kind": "electrical",
          "unit": "%",
          "min": 70,
          "typ": 80,
          "max": 90,
          "conditions": "FB=3.3V,CS=0V,VDD=16V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Frequency jitter range",
          "symbol": "Δf_OSC",
          "kind": "electrical",
          "unit": "%",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating current",
          "symbol": "I_VDD_OP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.6,
          "max": null,
          "conditions": "VDD=16V, VFB=3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VDD clamp voltage",
          "symbol": "VDD_Clamp",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 30.5,
          "max": null,
          "conditions": "IDD=10mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FB short-circuit current",
          "symbol": "IFB_Short",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.2,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FB threshold voltage at zero duty cycle",
          "symbol": "VTH_0D",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "VDD=16V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overload protection delay",
          "symbol": "TD_PL",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "FB input impedance",
          "symbol": "ZFB_IN",
          "kind": "electrical",
          "unit": "KΩ",
          "min": null,
          "typ": 4,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Leading-edge blanking time",
          "symbol": "T_blanking",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 270,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CS input impedance",
          "symbol": "Zsense",
          "kind": "electrical",
          "unit": "KΩ",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent detection to GATE off delay",
          "symbol": "TD_OC",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "from overcurrent occurrence to GATE drive off",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Soft-start time",
          "symbol": "T_ss",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 4,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Normal oscillation frequency",
          "symbol": "Fosc",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 65,
          "max": null,
          "conditions": "VDD=16V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Temperature frequency stability",
          "symbol": "Δf_Temp",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "VDD=16V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD voltage frequency stability",
          "symbol": "Δf_VDD",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "INV=0V, CB=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Burst mode frequency",
          "symbol": "F_Burst",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 22,
          "max": null,
          "conditions": "VDD=16V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "MOS drain-source breakdown voltage",
          "symbol": "Vds",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 650,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Static drain resistance",
          "symbol": "RDS(on)",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2.2,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Peak drain current",
          "symbol": "Idp",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tc7340"
  ],
  "discovery_pitch": "TC7340 (Shenzhen Fuman) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tc7340.kicad_sym",
    "tc7340.kicad_mod",
    "tc7340.glb",
    "tc7340.step",
    "tc7340.lbr",
    "docs/hero.png",
    "docs/tc7340-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tc7340-hero.glb",
    "tc7340-hero.overlay.json",
    "tc7340-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}