NCP1340B10DR2G

{
  "schema_version": 1,
  "type": "component",
  "slug": "ncp1340b10dr2g",
  "title": "NCP1340B10DR2G",
  "brief": "onsemi AC-DC Controllers & Regulators, SOIC-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": [
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  "component": {
    "mpn": "NCP1340B10DR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/ncp1340b10-d.pdf",
    "parts": {
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    "distributor_links": {
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    "distributor_check": {
      "checked_at": "2026-10-27T09:51:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "Fault",
        "type": "input",
        "description": "Controller enters fault mode if the voltage on this pin is pulled above or below the fault thresholds, and a precise pull-up current source allows direct interface with an NTC thermistor."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Feedback input for the QR flyback controller that allows direct connection to an optocoupler."
      },
      {
        "number": "3",
        "name": "ZCD/OPP",
        "type": "input",
        "description": "A resistor divider from the auxiliary winding to this pin provides input to the demagnetization detection comparator and sets the OPP compensation level."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Input to the cycle-by-cycle current limit comparator."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference."
      },
      {
        "number": "6",
        "name": "DRV",
        "type": "output",
        "description": "Drive pin of the circuit with -0.5/+0.8 A high-current capability, suitable for driving high gate charge power MOSFETs."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply of the IC that starts operating when VCC exceeds 17 V and turns off below 9 V (typical), with an operating range of 9 V to 28 V after start-up."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "input",
        "description": "Input for the high-voltage startup and brownout detection circuits, also containing line removal detection to safely discharge the X2 capacitors, rated -0.3 to 700 V."
      }
    ],
    "provenance": {
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        "guard_notes": [
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        ],
        "pages_sent": 10,
        "cost_usd": 0.115,
        "at": "2026-10-27T09:50:59"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/ncp1340b10-d.pdf",
        "pages": 43,
        "sha256": "ab80e1458de58ce2",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "zmin_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SOIC-8",
      "Category": "Power Management ICs",
      "Pins": "8"
    },
    "characteristics": {
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          "name": "Power Dissipation",
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          "name": "Thermal Resistance Junction-to-Ambient",
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        {
          "name": "Inhibit Current Sourced from VCC Pin",
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          "kind": "electrical",
          "unit": "mA",
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          "max": 5,
          "conditions": "Vcc = Vcc(on) – 0.5 V, –40°C to 125°C",
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          "max": 15,
          "conditions": "VHV = 162.5 V",
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        {
          "name": "Start-Up Circuit Off-State Leakage Current",
          "symbol": "IHV(off2)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VHV = 325 V",
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        {
          "name": "Start-Up Circuit Off-State Leakage Current",
          "symbol": "IHV(off3)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VHV = 700 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, Fault or Latch",
          "symbol": "ICC1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.115,
          "max": 0.15,
          "conditions": "VCC = VCC(on) – 0.5 V",
          "source_page": 6,
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        {
          "name": "Supply Current, Skip Mode (excluding FB current)",
          "symbol": "ICC2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.23,
          "max": 0.315,
          "conditions": "VFB = 0 V",
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        {
          "name": "Supply Current, Operating",
          "symbol": "ICC3",
          "kind": "electrical",
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          "min": null,
          "typ": 1,
          "max": 1.5,
          "conditions": "fsw = 50 kHz, CDRV = open",
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        {
          "name": "VCC Overvoltage Protection Threshold",
          "symbol": "VCC(OVP)",
          "kind": "electrical",
          "unit": "V",
          "min": 27,
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          "max": 29,
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          "name": "VCC Overvoltage Protection Delay",
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          "kind": "timing",
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          "min": 25,
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        {
          "name": "Gate Drive Rise Time",
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          "conditions": "VDRV from 10% to 90%",
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        {
          "name": "Gate Drive Fall Time",
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          "kind": "timing",
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          "conditions": "VDRV from 90% to 10%",
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        {
          "name": "Driver Source Current Capability",
          "symbol": "IDRV(SRC)",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
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          "max": null,
          "conditions": "",
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        {
          "name": "Driver Sink Current Capability",
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          "kind": "electrical",
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          "name": "Driver High State Voltage",
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          "typ": null,
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          "conditions": "VCC = VCC(off) + 0.2 V, RDRV = 10 kΩ",
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          "name": "Valley Transition 2nd to 1st",
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          "typ": 2,
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          "conditions": "VFB increasing",
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        {
          "name": "Maximum On Time",
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          "max": 55,
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