OB5686TCPA-H

{
  "schema_version": 1,
  "type": "component",
  "slug": "ob5686tcpa-h",
  "title": "OB5686TCPA-H",
  "brief": "OB On Bright Elec PFC Controllers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "ob5686tcpa-h"
  ],
  "component": {
    "mpn": "OB5686TCPA-H",
    "manufacturer": "OB On Bright Elec",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "PFC Controllers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/015dcd7bd38ed10420add3e12cb19215.pdf",
    "parts": {
      "symbol": "ob5686tcpa-h.kicad_sym",
      "footprint": "ob5686tcpa-h.kicad_mod",
      "model_3d": "ob5686tcpa-h.glb",
      "model_3d_step": "ob5686tcpa-h.step",
      "lbr": "ob5686tcpa-h.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Current sense input pin. Senses the primary MOSFET switching current via an external sense resistor between the source and GND for cycle-by-cycle overcurrent limiting. Over-current threshold Vth_ocp ~0.7 V (typical) at Ton=0us, with leading-edge blanking of ~420 ns."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "IC power supply pin. Charged via the HV startup circuit at power-on, then held up by the auxiliary winding during operation. UVLO_off ~16.2 V (rising), UVLO_on ~8 V (falling), VDD_ovp ~32 V; absolute max 40 V. Static current IVDD_op ~850 uA at VDD=20 V."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground / signal ground return for the IC and the current-sense resistor."
      },
      {
        "number": "4",
        "name": "FB",
        "type": "input",
        "description": "Output voltage feedback pin. Samples the auxiliary-winding (flyback) or buck-inductor voltage through a resistor divider to regulate the output using an internal reference Vref ~2.5 V. Also used for quasi-resonant detection, output OVP (~3.2 V) and short-circuit protection (~0.4 V). Absolute max -1 to 7 V."
      },
      {
        "number": "5",
        "name": "HV",
        "type": "power_in",
        "description": "High-voltage startup pin. Connects through a ~20 kΩ (typical) resistor to the rectified AC bus and delivers ~1 mA to charge the VDD capacitor at startup, then shuts off after UVLO_off. Absolute max -0.3 to 700 V."
      },
      {
        "number": "6",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection. Leave floating on the PCB."
      },
      {
        "number": "7",
        "name": "DRAIN",
        "type": "power_out",
        "description": "Drain terminal of the internal power MOSFET. Pins 7 and 8 are internally tied to the same drain node and should be connected in parallel to reduce impedance and improve thermal dissipation. BVdss = 650 V for the -H suffix."
      },
      {
        "number": "8",
        "name": "DRAIN",
        "type": "power_out",
        "description": "Drain terminal of the internal power MOSFET. Pins 7 and 8 are internally tied to the same drain node and should be connected in parallel to reduce impedance and improve thermal dissipation. BVdss = 650 V for the -H suffix."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/015dcd7bd38ed10420add3e12cb19215.pdf",
        "pages": 11,
        "sha256": "27ab41ecce3fa2e5",
        "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "OB On Bright Elec",
      "Package": "SOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "OB5686TCPA-H",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ob5686tcpa-h"
  ],
  "discovery_pitch": "OB5686TCPA-H (OB On Bright Elec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ob5686tcpa-h.kicad_sym",
    "ob5686tcpa-h.kicad_mod",
    "ob5686tcpa-h.glb",
    "ob5686tcpa-h.step",
    "ob5686tcpa-h.lbr",
    "docs/hero.png",
    "docs/ob5686tcpa-h-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T03:28:44.903Z"
}