LD7792NGS1

{
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  "type": "component",
  "slug": "ld7792ngs1",
  "title": "LD7792NGS1",
  "brief": "Leadtrend Tech AC-DC Controllers & Regulators, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "power supply chip",
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  "component": {
    "mpn": "LD7792NGS1",
    "manufacturer": "Leadtrend Tech",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Power Supply Chip",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fd51138057cef4105e25c6b5de3a7336.pdf",
    "parts": {
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      "lbr": "ld7792ngs1.lbr"
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    "distributor_links": {
      "lcsc": "C5124415"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "3",
        "name": "FBCOMP",
        "type": "input",
        "description": "Voltage feedback pin for the Flyback stage; connect a photo-coupler to close the control loop and achieve regulation."
      },
      {
        "number": "4",
        "name": "FBAUX",
        "type": "input",
        "description": "Zero current detection and over voltage protection input for the Flyback unit."
      },
      {
        "number": "5",
        "name": "OTP",
        "type": "input",
        "description": "External OTP protection pin."
      },
      {
        "number": "6",
        "name": "PFCCOMP",
        "type": "passive",
        "description": "Output of the error amplifier for PFC voltage loop compensation."
      },
      {
        "number": "7",
        "name": "PFCONOFF",
        "type": "input",
        "description": "Threshold voltage setting of FBCOMP for PFC ON/OFF loading control."
      },
      {
        "number": "8",
        "name": "PFCAUX",
        "type": "input",
        "description": "Zero current detection input for the PFC unit."
      },
      {
        "number": "9",
        "name": "VOSENSE",
        "type": "input",
        "description": "Voltage sense for PFC output, regulation voltage is 2.5V."
      },
      {
        "number": "10",
        "name": "FBSENSE",
        "type": "input",
        "description": "Current sense pin; connect it to sense the Flyback MOSFET current."
      },
      {
        "number": "11",
        "name": "PFCSENSE",
        "type": "input",
        "description": "Current sense pin; connect it to sense the PFC MOSFET current."
      },
      {
        "number": "12",
        "name": "PFCDRIVER",
        "type": "output",
        "description": "Gate drive output to drive the external MOSFET for the PFC unit."
      },
      {
        "number": "13",
        "name": "FBDRIVER",
        "type": "output",
        "description": "Gate drive output to drive the external MOSFET for the Flyback unit."
      },
      {
        "number": "14",
        "name": "CT",
        "type": "passive",
        "description": "Timer setting for Open Loop Protection, PFC light-load turn-off and Flyback soft-start."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "Unconnected pin."
      },
      {
        "number": "16",
        "name": "HV",
        "type": "input",
        "description": "Connect to Bridge + or Line/Neutral of AC/DC mains through a resistor for startup current; turned off when VCC reaches UVLO(on), and detects AC peak voltage for brown in/out and high/low line detection."
      }
    ],
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        "at": "2026-10-22T21:31:50"
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        "total": 16,
        "described": 16,
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        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Leadtrend Tech",
      "Package": "SOP-16",
      "Category": "Power Supply Chip",
      "Pins": "16"
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        {
          "name": "HV startup current source",
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          "kind": "electrical",
          "unit": "mA",
          "min": 1,
          "typ": 1.5,
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          "conditions": "VCC < PDR, VHV = 80V",
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        {
          "name": "HV current VCC > PDR",
          "symbol": "IHV3",
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        {
          "name": "HV off-state leakage current",
          "symbol": "IHVOFF500",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
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          "conditions": "After UVLO(on), VHV = 500V",
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          "name": "Brown-in level",
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          "kind": "electrical",
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          "min": 95,
          "typ": 105,
          "max": 115,
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          "name": "Brown-out level",
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          "unit": "V",
          "min": 75,
          "typ": 85,
          "max": 95,
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        {
          "name": "High line trip level",
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        {
          "name": "Low line trip level",
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          "typ": 210,
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          "name": "High line threshold - low line level",
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          "kind": "electrical",
          "unit": "V",
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          "name": "Holding current before UVLO(on)",
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          "kind": "electrical",
          "unit": "µA",
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          "typ": 150,
          "max": null,
          "conditions": "VCC < UVLO (on)",
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        {
          "name": "VCC latch current",
          "symbol": "IVCCLCH",
          "kind": "electrical",
          "unit": "µA",
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          "typ": 300,
          "max": null,
          "conditions": "VCC < UVLO (on), VLATCH = 0V",
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          "name": "Operating current, PFC & Flyback off",
          "symbol": "IVCCBST",
          "kind": "electrical",
          "unit": "mA",
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          "typ": 1.3,
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          "conditions": "VFBCOMP = 0V, PFC & Flyback OFF",
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          "kind": "electrical",
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          "typ": 2,
          "max": null,
          "conditions": "VFBCOMP = 3V, PFC & Flyback ON",
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          "conditions": "-20C ~125C",
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          "name": "Power down reset voltage",
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          "typ": 7,
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          "conditions": "",
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          "name": "Source current for PFC OFF threshold",
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          "kind": "electrical",
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          "conditions": "",
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          "name": "OTP pin source current",
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          "unit": "µA",
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          "typ": 80,
          "max": 85,
          "conditions": "",
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        {
          "name": "External OTP turn-on trip level",
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          "kind": "electrical",
          "unit": "V",
          "min": 1.05,
          "typ": 1.1,
          "max": 1.15,
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        {
          "name": "External OTP turn-off trip level",
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          "kind": "electrical",
          "unit": "V",
          "min": 0.9,
          "typ": 1,
          "max": 1.1,
          "conditions": "",
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        {
          "name": "OTP pin de-bounce time",
          "symbol": "TDOTPOFF",
          "kind": "electrical",
          "unit": "µs",
          "min": 400,
          "typ": 500,
          "max": 600,
          "conditions": "Disable (High to Low)",
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          "name": "Reference input voltage",
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          "kind": "electrical",
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          "min": 2.47,
          "typ": 2.5,
          "max": 2.53,
          "conditions": "TJ=-20C ~125C",
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        {
          "name": "PFC OVP trip level",
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          "kind": "electrical",
          "unit": "V",
          "min": 2.59,
          "typ": 2.63,
          "max": 2.67,
          "conditions": "",
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        {
          "name": "PFC OVP hysteresis",
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          "kind": "electrical",
          "unit": "V",
          "min": 0.115,
          "typ": 0.13,
          "max": 0.145,
          "conditions": "",
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        {
          "name": "PFC enable threshold",
          "symbol": "VPFCEN",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": 1.1,
          "max": 1.2,
          "conditions": "",
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        {
          "name": "PFC disable threshold",
          "symbol": "VPFCENL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": 0.9,
          "max": 1,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VOSENSE pull down resistance",
          "symbol": "RVOSENSE",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 5,
          "typ": 6,
          "max": 7,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Output low level",
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