FL7733AMX

{
  "schema_version": 1,
  "type": "component",
  "slug": "fl7733amx",
  "title": "FL7733AMX",
  "brief": "onsemi LED Drivers, 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": [
    "component",
    "led drivers",
    "fl7733amx",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FL7733AMX",
    "manufacturer": "onsemi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884255841112064",
    "parts": {
      "symbol": "fl7733amx.kicad_sym",
      "footprint": "fl7733amx.kicad_mod",
      "model_3d": "fl7733amx-hero.glb",
      "model_3d_plain": "fl7733amx-etched.glb",
      "model_3d_step": "fl7733amx-etched.step",
      "model_3d_step_plain": "fl7733amx.step",
      "lbr": "fl7733amx.lbr"
    },
    "distributor_links": {
      "lcsc": "C367384",
      "digikey": "FL7733AMXTR-ND",
      "mouser": "512-FL7733AMX"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T07:09:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "FL7733AMXTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "512-FL7733AMX",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Current sense: a current-sense resistor connects here to detect MOSFET current for constant output current regulation."
      },
      {
        "number": "2",
        "name": "GATE",
        "type": "output",
        "description": "PWM signal output driving the power MOSFET through an internal totem-pole output driver."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the controller; the datasheet's PCB guidance says signal ground and power ground should join only at this pin."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin that provides both the IC operating current and the MOSFET gate-drive current; UVLO turn-on is 16 V and turn-off is 7.75 V, and VDD OVP is 23 to 25 V."
      },
      {
        "number": "5",
        "name": "VS",
        "type": "power_in",
        "description": "Voltage sense that detects output voltage and discharge time for constant-current regulation, connected through a resistor divider to the transformer auxiliary winding; the output overvoltage threshold is 3.00 V typical."
      },
      {
        "number": "6",
        "name": "COMI",
        "type": "passive",
        "description": "Constant-current loop compensation pin, with a capacitor (typically above 1 µF) connected between COMI and GND to compensate the current-loop gain."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "8",
        "name": "HV",
        "type": "input",
        "description": "High-voltage pin connected to the rectified input through a resistor; the datasheet rates the HV pin voltage at 700 V."
      }
    ],
    "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 pin-configuration drawing on page 4 is scrambled in the text extraction, so pin numbers were tak; The datasheet text is in Chinese. Pin descriptions were translated into English from the page 4 tabl"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0777,
        "at": "2026-10-19T07:07:29"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884255841112064",
        "pages": 15,
        "sha256": "7cbbccfd40894c34",
        "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": "fl7733amx.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fl7733amx-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1783524c1250696f3fec4088dfc23a1d3872a6d7e6998d6564df43c52140dd9e",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SOIC-8",
      "Category": "LED Drivers",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7cbbccfd40894c3425ba73ada2f9211ab4e9a9f085d9b2471d00e664884b7890",
      "rows": [
        {
          "name": "HV 引脚电压",
          "symbol": "HV",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "直流电源电压",
          "symbol": "VVDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VS 引脚输入电压",
          "symbol": "VVS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CS 引脚输入电压",
          "symbol": "VCS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "COMI 引脚输入电压",
          "symbol": "VCOMI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "GATE 引脚输入电压",
          "symbol": "VGATE",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "功耗",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 633,
          "conditions": "TA<50℃",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "最大结温",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "存储温度范围",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "引脚温度（焊接）",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 秒",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "导通阈值电压",
          "symbol": "VDD-ON",
          "kind": "electrical",
          "unit": "V",
          "min": 14.5,
          "typ": 16,
          "max": 17.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "关断阈值电压",
          "symbol": "VDD-OFF",
          "kind": "electrical",
          "unit": "V",
          "min": 6.75,
          "typ": 7.75,
          "max": 8.75,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "工作电流",
          "symbol": "IDD-OP",
          "kind": "electrical",
          "unit": "mA",
          "min": 3,
          "typ": 4,
          "max": 5,
          "conditions": "CL=1 nF，f=fMAX-CC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "启动电流（两值，列位置待确认）",
          "symbol": "IDD-ST",
          "kind": "electrical",
          "unit": "μA",
          "min": 30,
          "typ": null,
          "max": 50,
          "conditions": "VDD=VDD-ON–1.6 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "VDD 过压保护水平",
          "symbol": "VVDD-OVP",
          "kind": "electrical",
          "unit": "V",
          "min": 23,
          "typ": 24,
          "max": 25,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "上升时间",
          "symbol": "tR",
          "kind": "electrical",
          "unit": "ns",
          "min": 100,
          "typ": 150,
          "max": 200,
          "conditions": "TA=25℃, VDD=15 V, CLOAD =1 nF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "下降时间",
          "symbol": "tF",
          "kind": "electrical",
          "unit": "ns",
          "min": 20,
          "typ": 60,
          "max": 100,
          "conditions": "TA=25℃, VDD=15 V, CLOAD=1 nF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "输出箝位电压",
          "symbol": "VCLAMP",
          "kind": "electrical",
          "unit": "V",
          "min": 12,
          "typ": 15,
          "max": 18,
          "conditions": "VDD=20 V, VCS=0 V, VVS=0 V, VCOM=0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "启动后的漏电流（两值，列位置待确认）",
          "symbol": "IHV-LC",
          "kind": "electrical",
          "unit": "μA",
          "min": 1,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "启动后的 JFET 调节时间",
          "symbol": "tR-JFET",
          "kind": "electrical",
          "unit": "ms",
          "min": 190,
          "typ": 250,
          "max": 310,
          "conditions": "TA=25℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "JFET 调节电压上限",
          "symbol": "VJFET-HL",
          "kind": "electrical",
          "unit": "V",
          "min": 17.5,
          "typ": 19,
          "max": 20.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "JFET 调节电压下限",
          "symbol": "VJFET-LL",
          "kind": "electrical",
          "unit": "V",
          "min": 11.5,
          "typ": 13,
          "max": 14.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "跨导",
          "symbol": "gM",
          "kind": "electrical",
          "unit": "μmho",
          "min": 11,
          "typ": 17,
          "max": 23,
          "conditions": "TA=25℃",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "COMI 灌电流",
          "symbol": "ICOMI-SINK",
          "kind": "electrical",
          "unit": "μA",
          "min": 12,
          "typ": 18,
          "max": 24,
          "conditions": "TA=25℃, VEAI=2.55 V, VCOMI=5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "|COMI 源电流|",
          "symbol": "ICOMI-SOURCE",
          "kind": "electrical",
          "unit": "μA",
          "min": 12,
          "typ": 18,
          "max": 24,
          "conditions": "TA=25℃, VEAI=0.45 V, VCOMI=0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "tDIS：VS 消隐时间",
          "symbol": "tDIS-BNK",
          "kind": "electrical",
          "unit": "μs",
          "min": 0.85,
          "typ": 1.15,
          "max": 1.45,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VS：VS 消隐电流",
          "symbol": "IVS-BNK",
          "kind": "electrical",
          "unit": "μA",
          "min": -75,
          "typ": -90,
          "max": -105,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VS：输出过压保护电平",
          "symbol": "VVS-OVP",
          "kind": "electrical",
          "unit": "V",
          "min": 2.95,
          "typ": 3,
          "max": 3.15,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VS：使能低电平限流的阈值电压",
          "symbol": "VVS-LOW-CL-EN",
          "kind": "electrical",
          "unit": "V",
          "min": 0.25,
          "typ": 0.3,
          "max": 0.35,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VS：禁用低电平限流的阈值电压",
          "symbol": "VVS-HIGH-CL-DIS",
          "kind": "electrical",
          "unit": "V",
          "min": 0.54,
          "typ": 0.6,
          "max": 0.66,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "VS：输出短路 LED 保护阈值电压",
          "symbol": "VVS-SLP-TH",
          "kind": "electrical",
          "unit": "V",
          "min": 0.25,
          "typ": 0.3,
          "max": 0.35,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "参考电压",
          "symbol": "VRV",
          "kind": "electrical",
          "unit": "V",
          "min": 1.485,
          "typ": 1.5,
          "max": 1.515,
          "conditions": "TA=25℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "到栅极输出端的传播延迟",
          "symbol": "tPD",
          "kind": "electrical",
          "unit": "ns",
          "min": 50,
          "typ": 100,
          "max": 150,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "限流阈值上限",
          "symbol": "VCS-HIGH-CL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.9,
          "typ": 1,
          "max": 1.1,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "限流阈值下限",
          "symbol": "VCS-LOW-CL",
          "kind": "electrical",
          "unit": "V",
          "min": 0.16,
          "typ": 0.2,
          "max": 0.24,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "过流保护的 VCS 阈值电压",
          "symbol": "VCS-OCP",
          "kind": "electrical",
          "unit": "V",
          "min": 1.2,
          "typ": 1.35,
          "max": 1.5,
          "conditions": "TA=25℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "恒流最大频率",
          "symbol": "fMAX-CC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 65,
          "typ": 70,
          "max": 75,
          "conditions": "TA=25℃, VS=3.0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "恒流最小频率",
          "symbol": "fMIN-CC",
          "kind": "electrical",
          "unit": "kHz",
          "min": 23,
          "typ": 26.5,
          "max": 30,
          "conditions": "TA=25℃, VS=0.3 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "最大导通时间",
          "symbol": "tON-MAX",
          "kind": "electrical",
          "unit": "μs",
          "min": 11,
          "typ": 13,
          "max": 15,
          "conditions": "TA=25℃, f=fMAX-CC",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "工作电流（启动电流对应行之前的 IHV 源电流）",
          "symbol": "IHV",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 9,
          "max": null,
          "conditions": "TA=25℃, VIN=90 VAC, VDD=0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "输出低电平",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "TA=25℃, VDD=20 V, IDD_GATE=1 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "输出高电平",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "TA=25℃, VDD=10 V, IDD=1 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "峰值源电流",
          "symbol": "ISOURCE",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": -60,
          "max": null,
          "conditions": "VDD=10 ~ 20 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "峰值吸电流",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 180,
          "max": null,
          "conditions": "VDD=10 ~ 20 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "COMI 高电平",
          "symbol": "VCOMI-HGH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.7,
          "max": null,
          "conditions": "VEAI=0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "COMI 低电平",
          "symbol": "VCOMI-LOW",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "VEAI=5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "初始 COMI 箝位电压",
          "symbol": "VCOMI_INT.CLP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.2,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "初始 COMI 箝位时间",
          "symbol": "tCOMI_INT.CLP",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "启动后检测禁用时间",
          "symbol": "tSLP-BNK",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "TA=25℃",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "前沿消隐时间",
          "symbol": "tLEB",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CC 最低导通时间",
          "symbol": "tMIN",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "VCOMI=0 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "启动时的低电流模式工作时间",
          "symbol": "tLOW-CM",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "检测电阻短路保护的 VCS 阈值电压",
          "symbol": "VCS-SRSP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "线路补偿电压与 VS 电流的关系",
          "symbol": "VCS / IVS",
          "kind": "electrical",
          "unit": "V/A",
          "min": null,
          "typ": 21.5,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "OTP 阈值温度",
          "symbol": "TOTP",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "重启结温滞回",
          "symbol": "TOTP-HYS",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "节-环境之间热阻",
          "symbol": "JA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 158,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "结壳热阻",
          "symbol": "JC",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 39,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "fl7733amx"
  ],
  "discovery_pitch": "FL7733AMX (onsemi) 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",
    "fl7733amx.kicad_sym",
    "fl7733amx.kicad_mod",
    "fl7733amx.glb",
    "fl7733amx.step",
    "fl7733amx.lbr",
    "docs/hero.png",
    "docs/fl7733amx-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fl7733amx-hero.glb",
    "fl7733amx-hero.overlay.json",
    "fl7733amx-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}