main
Ray Set visibility: public 4227051 7d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "sy5018bfac",
  "title": "SY5018BFAC",
  "brief": "Silergy Corp LED Drivers, SO-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",
    "sy5018bfac",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SY5018BFAC",
    "manufacturer": "Silergy Corp",
    "package": "SO-8",
    "pin_count": 8,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586196670459613184",
    "parts": {
      "symbol": "sy5018bfac.kicad_sym",
      "footprint": "sy5018bfac.kicad_mod",
      "model_3d": "sy5018bfac-hero.glb",
      "model_3d_plain": "sy5018bfac-etched.glb",
      "model_3d_step": "sy5018bfac-etched.step",
      "model_3d_step_plain": "sy5018bfac.step",
      "lbr": "sy5018bfac.lbr"
    },
    "distributor_links": {
      "lcsc": "C125901"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T07:05:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "passive",
        "description": "Loop compensation pin; an RC network is connected between this pin and GND to stabilize the control loop, with a 3.6 V absolute maximum rating."
      },
      {
        "number": "2",
        "name": "CLIM",
        "type": "passive",
        "description": "Output current limit setting pin; a 220 nF ceramic capacitor to GND sets the output current limit to about 1.2 times the rated current, and tying the pin to GND disables the function, with a 3.6 V absolute maximum rating."
      },
      {
        "number": "3",
        "name": "ISEN",
        "type": "input",
        "description": "Current limit sense pin with a 3.6 V absolute maximum rating; the datasheet gives a current limit voltage of 0.4 V when VSEN is below 0.2 V and 1.0 V when VSEN is between 0.2 V and 1.0 V, and a maximum current voltage of 1.5 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the controller."
      },
      {
        "number": "5",
        "name": "DRV",
        "type": "output",
        "description": "Gate driver output that connects to the primary MOSFET gate through a resistor, with typical source current of 100 mA and typical sink current of 500 mA, a 12 V gate drive voltage, and a -0.3 V to 36 V absolute range."
      },
      {
        "number": "6",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply pin with a recommended operating range of 9 V to 22 V, a VIN turn-on threshold of 21.5 V, a turn-off threshold of 7.5 V, and a -0.3 V to 36 V absolute range."
      },
      {
        "number": "7",
        "name": "VSEN",
        "type": "input",
        "description": "Output voltage and inductor current zero-detection input that receives the auxiliary winding voltage through a resistor divider, with an absolute range of -0.3 V to VIN + 0.3 V."
      },
      {
        "number": "8",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Pin 8 is not listed in the pinout table or anywhere else in the provided text, so no name, type or d; Pin types for COMP (passive) and ISEN (input) are inferred from their function, not stated in the da; Pin 5, 6 and 7 descriptions combine the pinout table with ratings from other sections of the applica",
          "exposed pad 8 added from the footprint"
        ],
        "pages_sent": 12,
        "cost_usd": 0.0506,
        "at": "2026-10-19T07:04:47"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586196670459613184",
        "pages": 12,
        "sha256": "3a2f100b12157b4b",
        "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": [
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        "file": "sy5018bfac.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "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": "sy5018bfac-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a29edd700f857604f66d5801b91849a72c9bf26a0ecd3d8dee7ec33db1195f4e",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Silergy Corp",
      "Package": "SO-8",
      "Category": "LED Drivers",
      "Pins": "8"
    },
    "characteristics": {
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      "source": "datasheet",
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      "rows": [
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          "min": 9,
          "typ": null,
          "max": 22,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Min ON Time",
          "symbol": "tON_MIN",
          "kind": "electrical",
          "unit": "µs",
          "min": 0.4,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Maximum switching frequency",
          "symbol": "fMAX",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Max ON Time",
          "symbol": "tON_MAX",
          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Vcomp=2.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum Current Voltage",
          "symbol": "VISEN_EX",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
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        {
          "name": "VIN, DRV absolute maximum",
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        {
          "name": "Supply current",
          "symbol": "IVIN",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
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        {
          "name": "VSEN",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "ISEN, COMP, CLIM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation SO8",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1.1,
          "conditions": "TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 sec",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN, DRV recommended operating",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 9,
          "typ": null,
          "max": 22,
          "conditions": "",
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        {
          "name": "Absolute maximum range (listed under Recommended Operating Conditions)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN working voltage (design recommendation)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 10,
          "typ": null,
          "max": 20,
          "conditions": "Working voltage of VIN pin in design flow",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Minimum switching frequency (design recommendation)",
          "symbol": "fS_MIN",
          "kind": "recommended_operating",
          "unit": "kHz",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "Whole input voltage range",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VIN turn-on threshold",
          "symbol": "VIN_ON",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 21.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN turn-off threshold",
          "symbol": "VIN_OFF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 7.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN OVP voltage",
          "symbol": "VIN_OVP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 24.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Start up current",
          "symbol": "IST",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "VIN < VIN_OFF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating current",
          "symbol": "IVIN",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "CL=100pF, f=15kHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shunt current in OVP mode",
          "symbol": "IVIN_OVP",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "VIN > VIN_OVP",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current limit voltage",
          "symbol": "VISEN_LIMIT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "VSEN < 0.2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Current limit voltage",
          "symbol": "VISEN_LIMIT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "1.0V > VSEN > 0.2V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VFB at fast start up",
          "symbol": "VFB_LOW",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Internal reference voltage",
          "symbol": "VREFV",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.25,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Threshold value of Max VFB",
          "symbol": "VFB_HIGH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.4,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "OVP voltage threshold",
          "symbol": "VSEN_OVP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Blanking time for OFF time",
          "symbol": "tOFF_MIN1",
          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": 1.7,
          "max": null,
          "conditions": "VISEN_HOLD=0.15V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Blanking time for OFF time",
          "symbol": "tOFF_MIN2",
          "kind": "electrical",
          "unit": "µs",
          "min": null,
          "typ": 2.6,
          "max": null,
          "conditions": "VISEN_HOLD=0.40V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Gate driver voltage",
          "symbol": "VGate",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 12,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Typical source current",
          "symbol": "ISOURCE",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Typical sink current",
          "symbol": "ISINK",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output current limit",
          "symbol": "VCLIM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.33,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal shutdown temperature",
          "symbol": "TSD",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance SO8 junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 88,
          "max": null,
          "conditions": "Natural convection, TA=25°C, JEDEC 51-3 board, 2oz copper (Note 2)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance SO8 junction-to-case",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
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      ]
    }
  },
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  "sections": [
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    "viewers",
    "readme",
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    "info"
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "SY5018BFAC (Silergy Corp) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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