main
Ray Set visibility: public 9caed73 21d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ob2535cpa",
  "title": "OB2535CPA",
  "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",
  "tags": [
    "component",
    "power management (pmic)",
    "ob2535cpa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "OB2535CPA",
    "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/8588883521222430720",
    "parts": {
      "symbol": "ob2535cpa.kicad_sym",
      "footprint": "ob2535cpa.kicad_mod",
      "model_3d": "ob2535cpa-hero.glb",
      "model_3d_plain": "ob2535cpa-etched.glb",
      "model_3d_step": "ob2535cpa-etched.step",
      "model_3d_step_plain": "ob2535cpa.step",
      "lbr": "ob2535cpa.lbr"
    },
    "distributor_links": {
      "lcsc": "C261407"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T21:18:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply pin: the output shuts down when VDD falls below UVLO(ON) of 8.2-10.5 V, and VDD is clamped at VDD_clamp of 27-30 V (IDD=10 mA) with VDD OVP at 26-29 V."
      },
      {
        "number": "2",
        "name": "COMP",
        "type": "input",
        "description": "Loop compensation pin for CV stability; its voltage sets the cable-drop compensation current into INV, with a maximum of 37.5 uA at INV=2 V, COMP=0 V."
      },
      {
        "number": "3",
        "name": "INV",
        "type": "input",
        "description": "Voltage feedback input from the auxiliary winding through a resistor divider, compared against a 2.00 V reference (1.97-2.03 V), with PWM duty set by the EA output and the current sense signal at CS."
      },
      {
        "number": "4",
        "name": "CS",
        "type": "input",
        "description": "Current sense input for the switch current; the over-current threshold is 880-940 mV (910 mV typical) with 625 ns leading-edge blanking, 110 ns propagation delay and 50 kOhm input impedance, and the external sense resistor Rs sets the CC point."
      },
      {
        "number": "5",
        "name": "DRAIN",
        "type": "output",
        "description": "HV MOSFET drain connected to the primary lead of the transformer, with a drain-source breakdown voltage (BVdss) of 600 V."
      },
      {
        "number": "6",
        "name": "DRAIN",
        "type": "output",
        "description": "HV MOSFET drain connected to the primary lead of the transformer, with a drain-source breakdown voltage (BVdss) of 600 V."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; the datasheet gives no additional electrical limits for this pin."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; the datasheet gives no additional electrical limits for this pin."
      }
    ],
    "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 OB2535CPA is the Pb-free T&R (tape and reel) ordering variant of the SOP8 package; the datasheet; The pin-configuration figure on page 2 is garbled in the text extraction. The pinout was taken from ; Pin types follow the datasheet I/O column: COMP, INV and CS are listed as I (mapped to input), and D"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0523,
        "at": "2026-10-18T21:16:12"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588883521222430720",
        "pages": 10,
        "sha256": "a63f62526a72215c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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    "viewers": {
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      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ob2535cpa-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c32d501a4f5c9138736e6db92f30500535cf22dd56909c6edae78b7d2c21ac04",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "OB On Bright Elec",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "appearance": {
      "contacts": {
        "quote": "Note: Drain Pin Connected 100mm2 PCB copper",
        "page": 2,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "a63f62526a72215c4ce048985bd47a82fae12de49399c845101586aa0ec865db"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a63f62526a72215c4ce048985bd47a82fae12de49399c845101586aa0ec865db",
      "rows": [
        {
          "name": "Standby Current",
          "symbol": "I DD ST",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 5,
          "max": 20,
          "conditions": "VDD=13V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operation Current",
          "symbol": "I DD op",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2,
          "max": 3,
          "conditions": "INV=2V, CS=0V, VDD=VDDG=18V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD Under Voltage Lockout (enter, falling)",
          "symbol": "UVLO(ON)",
          "kind": "electrical",
          "unit": "V",
          "min": 8.2,
          "typ": 9,
          "max": 10.5,
          "conditions": "Enter VDD falling",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD Under Voltage Lockout (exit, rising)",
          "symbol": "UVLO(OFF)",
          "kind": "electrical",
          "unit": "V",
          "min": 13.5,
          "typ": 14.8,
          "max": 16,
          "conditions": "Exit VDD rising",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum VDD operation voltage (clamp)",
          "symbol": "VDD_clamp",
          "kind": "electrical",
          "unit": "V",
          "min": 27,
          "typ": 28.5,
          "max": 30,
          "conditions": "IDD=10mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Over voltage protection threshold",
          "symbol": "OVP",
          "kind": "electrical",
          "unit": "V",
          "min": 26,
          "typ": 27.5,
          "max": 29,
          "conditions": "Ramp VDD until gate shut down",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "LEB time",
          "symbol": "TLEB",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 625,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Over current threshold",
          "symbol": "Vth_oc",
          "kind": "electrical",
          "unit": "mV",
          "min": 880,
          "typ": 910,
          "max": 940,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "OCP Propagation delay",
          "symbol": "Td_oc",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 110,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input Impedance",
          "symbol": "ZSENSE_IN",
          "kind": "electrical",
          "unit": "Kohm",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Soft start time",
          "symbol": "T_ss",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 17,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "IC Maximum frequency",
          "symbol": "Freq_Max",
          "kind": "electrical",
          "unit": "KHz",
          "min": 55,
          "typ": 60,
          "max": 65,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "System nominal switch frequency",
          "symbol": "Freq_Nom",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Startup switch frequency",
          "symbol": "Freq_startup",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 14,
          "max": null,
          "conditions": "INV=0V, Comp=5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Frequency shuffling range",
          "symbol": "△f/Freq",
          "kind": "tolerance",
          "unit": "%",
          "min": -6,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reference voltage for EA",
          "symbol": "Vref_EA",
          "kind": "electrical",
          "unit": "V",
          "min": 1.97,
          "typ": 2,
          "max": 2.03,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "DC gain of EA",
          "symbol": "Gain",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Max. cable compensation current",
          "symbol": "I_COMP_MAX",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 37.5,
          "max": null,
          "conditions": "INV=2V, Comp=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "MOSFET Drain-Source Breakdown Voltage",
          "symbol": "BVdss",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 600,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "On Resistance",
          "symbol": "Rdson",
          "kind": "electrical",
          "unit": "Ώ",
          "min": null,
          "typ": 12,
          "max": 15,
          "conditions": "Static, Id=0.4A",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Drain Voltage (off state)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Maximum is Bvdss (not a numeric value in datasheet)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VDD Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Maximum is VDD_clamp (not a numeric value in datasheet)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VDD Zener Clamp continuous current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Continuous current",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "COMP Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "CS Input Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "INV Input Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature (Soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Soldering, 10 secs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient (SOP8)",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "Drain pin connected to 100mm2 PCB copper clad",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ob2535cpa"
  ],
  "discovery_pitch": "OB2535CPA (OB On Bright Elec) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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}