FAN6921MRMY

{
  "schema_version": 1,
  "type": "component",
  "slug": "fan6921mrmy",
  "title": "FAN6921MRMY",
  "brief": "onsemi AC-DC Controllers And 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",
  "tags": [
    "component",
    "power management (pmic)",
    "fan6921mrmy",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FAN6921MRMY",
    "manufacturer": "onsemi",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586197969024114688",
    "parts": {
      "symbol": "fan6921mrmy.kicad_sym",
      "footprint": "fan6921mrmy.kicad_mod",
      "model_3d": "fan6921mrmy-hero.glb",
      "model_3d_plain": "fan6921mrmy-etched.glb",
      "model_3d_step": "fan6921mrmy-etched.step",
      "model_3d_step_plain": "fan6921mrmy.step",
      "lbr": "fan6921mrmy.lbr"
    },
    "distributor_links": {
      "lcsc": "C124450",
      "digikey": "2832-FAN6921MRMYTR-ND",
      "mouser": "512-FAN6921MRMY"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T04:54:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2832-FAN6921MRMYTR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "512-FAN6921MRMY",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RANGE",
        "type": "passive",
        "description": "RANGE pin impedance changes with the VIN pin voltage: high impedance when VIN is below its threshold and low impedance when VIN is high."
      },
      {
        "number": "2",
        "name": "COMP",
        "type": "output",
        "description": "Transconductance error-amplifier output for PFC voltage feedback, with a simple compensation circuit connected between this pin and GND."
      },
      {
        "number": "3",
        "name": "INV",
        "type": "input",
        "description": "Inverting input of the PFC error amplifier, receiving the PFC voltage through a divider and providing PFC output over- and under-voltage protection."
      },
      {
        "number": "4",
        "name": "CSPFC",
        "type": "input",
        "description": "PFC over-current sense input that turns off the PFC switch when the sensed voltage reaches the internal 0.82 V typical threshold, giving cycle-by-cycle current limiting."
      },
      {
        "number": "5",
        "name": "CSPWM",
        "type": "input",
        "description": "PWM current-sense input for cycle-by-cycle current limiting, current-mode control and high/low line over-power compensation, fed through a resistor in the PWM switch current path."
      },
      {
        "number": "6",
        "name": "OPFC",
        "type": "output",
        "description": "Totem-pole driver output for the external PFC power MOSFET, with a clamped gate output voltage of 15.5 V."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin with startup and turn-off thresholds of 18 V and 7.5 V, startup current below 30 µA and operating current below 10 mA."
      },
      {
        "number": "8",
        "name": "OPWM",
        "type": "output",
        "description": "Totem-pole driver output for the external PWM power MOSFET, with a clamped gate output voltage of 17.5 V."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground and signal ground reference for the controller; all voltages are referenced to this pin."
      },
      {
        "number": "10",
        "name": "DET",
        "type": "input",
        "description": "Auxiliary-winding divider input used for over-power offset, valley detection, and output OVP, which latches the controller when the flat voltage exceeds 2.5 V."
      },
      {
        "number": "11",
        "name": "FB",
        "type": "input",
        "description": "Feedback input from the opto-coupler with about 5 kΩ input impedance; FB above about 4.2 V for more than 50 ms activates open-loop, overload and output-short protection."
      },
      {
        "number": "12",
        "name": "RT",
        "type": "input",
        "description": "Adjustable over-temperature and external latch-trigger input, with a constant current flowing out of the pin; latch protection activates when RT falls below 0.8 V typical."
      },
      {
        "number": "13",
        "name": "VIN",
        "type": "power_in",
        "description": "Line-voltage sense input, received through a voltage divider, for brown-in/out protection and for controlling the RANGE pin."
      },
      {
        "number": "14",
        "name": "ZCD",
        "type": "input",
        "description": "Zero-current detection input from the PFC inductor auxiliary winding; pulling it below 0.2 V typical disables PFC switching."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "16",
        "name": "HV",
        "type": "power_in",
        "description": "High-voltage startup pin tied to the AC line through a resistor (100 kΩ typical) to charge the VDD capacitor; absolute maximum rating is 500 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: Datasheet describes RANGE only by its changing impedance; I classed it as passive, which is an infer; RT sources a constant current and has a comparator threshold; classed as input by inference, the dat; HV is a high-voltage startup input drawn from the AC line; classed as power_in by inference."
        ],
        "pages_sent": 9,
        "cost_usd": 0.053,
        "at": "2026-10-18T04:50:58"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586197969024114688",
        "pages": 25,
        "sha256": "6ac9b44f496c1530",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "fan6921mrmy.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fan6921mrmy-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "centre_offset_mm": 0,
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        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SOP-16",
      "Category": "Power Management (PMIC)",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6ac9b44f496c15300e6e6c906cf6408f510b0b01d815e1261f585170fc36a2dd",
      "rows": [
        {
          "name": "DC Supply Voltage",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
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          "max": 30,
          "conditions": "",
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          "name": "HV pin voltage",
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        },
        {
          "name": "OPFC, OPWM output voltage",
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        },
        {
          "name": "Others (INV, COMP, CSPFC, DET, FB, CSPWM, RT)",
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        },
        {
          "name": "Input Voltage to ZCD Pin",
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          "name": "Power Dissipation",
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          "unit": "mW",
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        {
          "name": "Thermal Resistance (Junction-to-Air)",
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          "unit": "°C/W",
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        },
        {
          "name": "Thermal Resistance (Junction-to-Case)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
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        {
          "name": "Operating Junction Temperature",
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        {
          "name": "Storage Temperature Range",
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          "unit": "°C",
          "min": -55,
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        },
        {
          "name": "Lead Temperature (Soldering 10 Seconds)",
          "symbol": "TL",
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          "unit": "°C",
          "min": null,
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        },
        {
          "name": "ESD Human Body Model",
          "symbol": "",
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          "conditions": "JESD22-A114, all pins except HV pin",
          "source_page": 7,
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        },
        {
          "name": "ESD Charged Device Model",
          "symbol": "",
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          "conditions": "JESD22-C101, all pins except HV pin",
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        },
        {
          "name": "Operating Ambient Temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
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        {
          "name": "Turn-On Threshold Voltage",
          "symbol": "VDD-ON",
          "kind": "electrical",
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          "max": 19.5,
          "conditions": "",
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        },
        {
          "name": "PWM Off Threshold Voltage",
          "symbol": "VDD-PWM-OFF",
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        {
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          "kind": "electrical",
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          "typ": 7.5,
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          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operating Current at PWM-Off Phase",
          "symbol": "IDD-PWM-OFF",
          "kind": "electrical",
          "unit": "µA",
          "min": 70,
          "typ": 120,
          "max": 170,
          "conditions": "VDD=VDD-PWM-OFF - 0.5 V",
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          "source": "datasheet"
        },
        {
          "name": "VDD Over-Voltage Protection (Latch-Off)",
          "symbol": "VDD-OVP",
          "kind": "electrical",
          "unit": "V",
          "min": 26.5,
          "typ": 27.5,
          "max": 28.5,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "VDD OVP Debounce Time",
          "symbol": "tVDD-OVP",
          "kind": "timing",
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          "typ": 150,
          "max": 200,
          "conditions": "",
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        },
        {
          "name": "Under-Voltage Protection Threshold Voltage for AC Input",
          "symbol": "VVIN-UVP",
          "kind": "electrical",
          "unit": "V",
          "min": 0.95,
          "typ": 1,
          "max": 1.05,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Under-Voltage Protection Debounce Time (No Need at Startup and Hiccup Mode)",
          "symbol": "tVIN-UVP",
          "kind": "timing",
          "unit": "ms",
          "min": 70,
          "typ": 100,
          "max": 130,
          "conditions": "",
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        },
        {
          "name": "High VVIN Threshold for RANGE Comparator",
          "symbol": "VVIN-RANGE-H",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": 2.45,
          "max": 2.5,
          "conditions": "",
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        },
        {
          "name": "Low VVIN Threshold for RANGE Comparator",
          "symbol": "VVIN-RANGE-L",
          "kind": "electrical",
          "unit": "V",
          "min": 2.05,
          "typ": 2.1,
          "max": 2.15,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "PFC Maximum On Time",
          "symbol": "tON-MAX-PFC",
          "kind": "timing",
          "unit": "µs",
          "min": 22,
          "typ": 25,
          "max": 28,
          "conditions": "RMOT=24 kΩ",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Feedback Comparator Reference Voltage",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 2.465,
          "typ": 2.5,
          "max": 2.535,
          "conditions": "",
          "source_page": 9,
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        },
        {
          "name": "Clamp High Feedback Voltage",
          "symbol": "VINV-H",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": 2.75,
          "max": 2.8,
          "conditions": "RANGE=Open",
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          "source": "datasheet"
        },
        {
          "name": "Clamp High Feedback Voltage",
          "symbol": "VINV-H",
          "kind": "electrical",
          "unit": "V",
          "min": 2.6,
          "typ": 2.65,
          "max": 2.7,
          "conditions": "RANGE=Ground",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Clamp Low Feedback Voltage",
          "symbol": "VINV-L",
          "kind": "electrical",
          "unit": "V",
          "min": 2.25,
          "typ": 2.35,
          "max": 2.45,
          "conditions": "",
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        },
        {
          "name": "Under-Voltage Protection for INV Input",
          "symbol": "VINV-UVP",
          "kind": "electrical",
          "unit": "V",
          "min": 0.35,
          "typ": 0.45,
          "max": 0.55,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "PWM and PFC Off Threshold for Brownout Protection",
          "symbol": "VINV-BO",
          "kind": "electrical",
          "unit": "V",
          "min": 1.15,
          "typ": 1.2,
          "max": 1.25,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Limited Voltage on COMP Pin for Brownout Protection",
          "symbol": "VCOMP-BO",
          "kind": "electrical",
          "unit": "V",
          "min": 1.55,
          "typ": 1.6,
          "max": 1.65,
          "conditions": "",
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        },
        {
          "name": "PFC Gate Output Clamping Voltage",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": 14,
          "typ": 15.5,
          "max": 17,
          "conditions": "VDD= 25 V",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Input Threshold Voltage Rising Edge",
          "symbol": "VZCD",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
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          "max": 2.3,
          "conditions": "VZCD Increasing",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Threshold Voltage Hysteresis",
          "symbol": "VZCD-HYST",
          "kind": "electrical",
          "unit": "V",
          "min": 0.25,
          "typ": 0.35,
          "max": 0.45,
          "conditions": "VZCD Decreasing",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Lower Clamp Voltage",
          "symbol": "VZCD-LOW",
          "kind": "electrical",
          "unit": "V",
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          "typ": 0.65,
          "max": 0.9,
          "conditions": "",
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        },
        {
          "name": "Restart Time (PFC)",
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          "typ": 500,
          "max": 700,
          "conditions": "",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Open-Loop Protection Threshold Voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": 3.9,
          "typ": 4.2,
          "max": 4.5,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Debounce Time for Open Loop Protection",
          "symbol": "tFB-OLP",
          "kind": "timing",
          "unit": "ms",
          "min": 40,
          "typ": 50,
          "max": 60,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Comparator Reference Voltage (DET-OVP)",
          "symbol": "VDET-OVP",
          "kind": "electrical",
          "unit": "V",
          "min": 2.45,
          "typ": 2.5,
          "max": 2.55,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Lower Clamp Voltage (DET)",
          "symbol": "VDET-LOW",
          "kind": "electrical",
          "unit": "V",
          "min": 0.5,
          "typ": 0.7,
          "max": 0.9,
          "conditions": "IDET=1 mA",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Maximum On Time (PWM)",
          "symbol": "tON-MAX-PWM",
          "kind": "timing",
          "unit": "µs",
          "min": 38,
          "typ": 45,
          "max": 52,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Minimum Off Time",
          "symbol": "tOFF-MIN",
          "kind": "timing",
          "unit": "µs",
          "min": 7,
          "typ": 8,
          "max": 9,
          "conditions": "VFB≧VN, TA=25°C",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Beginning of Green-On Mode at FB Voltage Level",
          "symbol": "VN",
          "kind": "electrical",
          "unit": "V",
          "min": 1.95,
          "typ": 2.1,
          "max": 2.25,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Beginning of Green-Off Mode at FB Voltage Level",
          "symbol": "VG",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": 1.15,
          "max": 1.3,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "PWM Gate Output Clamping Voltage",
          "symbol": "VCLAMP",
          "kind": "electrical",
          "unit": "V",
          "min": 16,
          "typ": 17.5,
          "max": 19,
          "conditions": "VDD=25 V",
          "source_page": 12,
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