NCP1377BDR2G

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  "title": "NCP1377BDR2G",
  "brief": "onsemi AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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    "power management (pmic)",
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  "component": {
    "mpn": "NCP1377BDR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588879858781208576",
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    "distributor_links": {
      "lcsc": "C127102"
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      "checked_at": "2026-10-18T22:57:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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    "pins": [
      {
        "number": "1",
        "name": "Demag",
        "type": "input",
        "description": "The auxiliary flyback signal provides core reset detection and a fixed overvoltage detection level of 7.2 V, with maximum pin current of +3.0/−2.0 mA."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "The optocoupler connection sets the peak current setpoint, and pulling this pin below the internal skip level shuts the device off."
      },
      {
        "number": "3",
        "name": "CS",
        "type": "input",
        "description": "This current sense input routes the primary current through the leading edge blanking to the comparator, and a series resistor sets the skip cycle level; other pins are limited to −0.3 to 10 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "This is the IC ground reference."
      },
      {
        "number": "5",
        "name": "Drv",
        "type": "output",
        "description": "This is the driver output to the external MOSFET, with a continuous power supply or drive voltage maximum of 18 V (VCC, Drv)."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "This is the IC supply pin, connected to an external bulk capacitor of typically 10 µF, with a continuous maximum of 18 V and a transient pulse maximum of 25 V (duration < 10 ms, ICC < 20 mA)."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "This pin is unconnected and is present only to ensure adequate creepage distance."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "power_in",
        "description": "This high-voltage pin is connected to the high-voltage rail, injects a constant current of 4 mA into the VCC bulk capacitor for lossless startup, and is rated up to 500 V."
      }
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      "Manufacturer": "onsemi",
      "Package": "SOIC-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
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          "name": "VCC increasing level at which the current source turns off",
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          "name": "Minimum operating voltage after turn-on",
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        {
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        {
          "name": "High voltage minimum startup",
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          "name": "Source resistance",
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          "name": "Sink resistance",
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          "name": "Maximum internal current setpoint",
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          "unit": "V",
          "min": 0.9,
          "typ": 1,
          "max": 1.1,
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        {
          "name": "Propagation delay from current detection to gate OFF state",
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        {
          "name": "OVP internal reference level",
          "symbol": "Vref",
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          "unit": "V",
          "min": 6.4,
          "typ": 7.2,
          "max": 8,
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        {
          "name": "Demagnetization input threshold voltage",
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          "min": 35,
          "typ": 50,
          "max": 90,
          "conditions": "Vpin 1 decreasing",
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        {
          "name": "Input clamp voltage, high state",
          "symbol": "VCH",
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          "min": 8,
          "typ": 10,
          "max": 12,
          "conditions": "Ipin 1 = 3.0 mA",
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        {
          "name": "Input clamp voltage, low state",
          "symbol": "VCL",
          "kind": "electrical",
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          "min": -0.9,
          "typ": -0.7,
          "max": -0.5,
          "conditions": "Ipin 1 = -2.0 mA",
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          "name": "Continuous power supply or drive voltage",
          "symbol": "VCC, Drv",
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        {
          "name": "Transient power supply voltage",
          "symbol": "VCC Pulse",
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          "unit": "V",
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          "conditions": "Duration < 10 ms, IVCC < 20 mA",
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        {
          "name": "Maximum voltage on all other pins except pin 8 (HV), pin 6 (VCC) and pin 5 (Drv)",
          "symbol": "",
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          "min": -0.3,
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          "max": 10,
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        {
          "name": "Maximum current into all pins except VCC (6), HV (8) and Demag (1) when 10 V ESD diodes are activated",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
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          "conditions": "10 V ESD diodes activated",
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        {
          "name": "Maximum current in pin 1 (Demag)",
          "symbol": "",
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          "unit": "mA",
          "min": -2,
          "typ": null,
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        {
          "name": "Maximum junction temperature",
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          "unit": "C",
          "min": null,
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          "max": 150,
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        {
          "name": "Temperature shutdown",
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        {
          "name": "Hysteresis in shutdown",
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          "min": null,
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        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -60,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
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        {
          "name": "ESD capability, HBM model",
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          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "All pins except VCC and HV",
          "source_page": 3,
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        {
          "name": "ESD capability, machine model",
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          "min": null,
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          "max": 200,
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          "source_page": 3,
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          "name": "Maximum voltage on pin 8 (HV) and pin 6 (VCC)",
          "symbol": "VHV",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "Decoupled to ground with 10 uF",
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          "name": "Thermal resistance, junction-to-case",
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          "kind": "thermal",
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        {
          "name": "Thermal resistance, junction-to-air, SOIC version",
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          "min": null,
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          "max": null,
          "conditions": "SOIC version",
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