OB2004AZCPA-C

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  "title": "OB2004AZCPA-C",
  "brief": "OB On Bright Elec AC-DC Controllers And Regulators, SOP-8. 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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  "component": {
    "mpn": "OB2004AZCPA-C",
    "manufacturer": "OB On Bright Elec",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588950439693443072",
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      "lbr": "ob2004azcpa-c.lbr"
    },
    "distributor_links": {
      "lcsc": "C909939"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T04:25:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; the datasheet lists GND on pins 1 and 2 with no further electrical limits stated for this pin."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; the datasheet lists GND on pins 1 and 2 with no further electrical limits stated for this pin."
      },
      {
        "number": "3",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin for the IC; recommended supply is 4.2V to 5V, absolute maximum is -0.6V to 8V, and the UVLO entry/exit thresholds are 3.0V (off) and 2.4V (on)."
      },
      {
        "number": "4",
        "name": "Vin",
        "type": "power_in",
        "description": "System output voltage detection pin; absolute maximum range is -0.6V to 24V, and SR is disabled when Vin is at about 1.9V to 2.3V."
      },
      {
        "number": "5",
        "name": "Drain",
        "type": "input",
        "description": "SR MOSFET drain pin, connected to the secondary-side winding of the transformer; absolute maximum range is -2.5V to 60V."
      },
      {
        "number": "6",
        "name": "Drain",
        "type": "input",
        "description": "SR MOSFET drain pin, connected to the secondary-side winding of the transformer; absolute maximum range is -2.5V to 60V."
      },
      {
        "number": "7",
        "name": "Drain",
        "type": "input",
        "description": "SR MOSFET drain pin, connected to the secondary-side winding of the transformer; absolute maximum range is -2.5V to 60V."
      },
      {
        "number": "8",
        "name": "Drain",
        "type": "input",
        "description": "SR MOSFET drain pin, connected to the secondary-side winding of the transformer; absolute maximum range is -2.5V to 60V."
      }
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          "extractor flagged: The MPN OB2004AZCPA-C does not appear in the datasheet. The closest listed part is OB2004AZCPA (SOP8; The datasheet is marked 'Preliminary'. Pin assignments and ratings are taken from it as printed and ; The datasheet gives no pin-level description for the GND pins beyond the name, and no pin-level limi"
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        "total": 8,
        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "OB On Bright Elec",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
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          "name": "VDD Supply Voltage (recommended operating range)",
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          "name": "VDD pin voltage (absolute maximum)",
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          "name": "Operating Junction Temperature",
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          "name": "Operating Ambient Temperature",
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          "name": "Storage Temperature",
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        {
          "name": "Lead Temperature (Soldering)",
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          "name": "Package thermal resistance junction-to-ambient, SOP8",
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          "kind": "thermal",
          "unit": "℃/W",
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        {
          "name": "Operation current",
          "symbol": "I_VDD_operation",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.2,
          "max": 1.6,
          "conditions": "Frequency@VDrain=65KHz, VDD=5V, 1nF Cap load at GATE.",
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          "name": "Operation current",
          "symbol": "I_VDD_operation",
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          "typ": 0.6,
          "max": 0.8,
          "conditions": "Frequency@VDrain=2KHz, VDD=5V, No load at GATE.",
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          "source": "datasheet"
        },
        {
          "name": "VDD regulation voltage (min)",
          "symbol": "VDD_regulation_min",
          "kind": "electrical",
          "unit": "V",
          "min": 4.2,
          "typ": null,
          "max": null,
          "conditions": "Frequency@VDrain=50KHz, Duty=25%, High level @VDrain=20V Vin<4.5V",
          "source_page": 5,
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        },
        {
          "name": "VDD regulation voltage (max)",
          "symbol": "VDD_regulation_max",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Frequency@VDrain=50KHz, Duty=25%, High level @VDrain=20V Vin>5.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD Under Voltage Lockout Entry",
          "symbol": "UVLO(OFF)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "",
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          "source": "datasheet"
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        {
          "name": "VDD Under Voltage Lockout Exit (Recovery)",
          "symbol": "UVLO(ON)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.4,
          "max": null,
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          "source": "datasheet"
        },
        {
          "name": "SR MOSFET turn on threshold voltage detection at VDrain",
          "symbol": "Vth_SR_act",
          "kind": "electrical",
          "unit": "mV",
          "min": -150,
          "typ": -200,
          "max": -250,
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        {
          "name": "Adjustable SR MOSFET turn off threshold voltage detection at VDrain",
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          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": -1,
          "conditions": "",
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        {
          "name": "SR MOSFET fast path turn-on propagation delay",
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          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 70,
          "max": null,
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          "source": "datasheet"
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        {
          "name": "SR MOSFET slow path turn-on propagation delay",
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          "unit": "ns",
          "min": null,
          "typ": 200,
          "max": null,
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        {
          "name": "SR MOSFET turn-off propagation delay",
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          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Voltage level at Vin when SR is disable",
          "symbol": "Vin_sr_disable",
          "kind": "electrical",
          "unit": "V",
          "min": 1.9,
          "typ": 2.1,
          "max": 2.3,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Prediction ratio (no sub-harmonic condition)",
          "symbol": "Rpre",
          "kind": "electrical",
          "unit": "%",
          "min": 63,
          "typ": 66,
          "max": 69,
          "conditions": "No sub-harmonic condition",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Prediction ratio (with sub-harmonic condition)",
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          "kind": "electrical",
          "unit": "%",
          "min": 12,
          "typ": 15,
          "max": 18,
          "conditions": "With sub-harmonic condition",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum SR turn-on time",
          "symbol": "Tsr_on_max",
          "kind": "timing",
          "unit": "us",
          "min": 35,
          "typ": 40,
          "max": 45,
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        {
          "name": "Maximum SR turn-off dead time",
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