main
Ray Set visibility: public 386cb0e 4d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ob3379acpa",
  "title": "OB3379ACPA",
  "brief": "OB(On-Bright Elec) LED Drivers, 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",
    "led drivers",
    "ob3379acpa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "OB3379ACPA",
    "manufacturer": "OB(On-Bright Elec)",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4c210be76926b135a056c2ebd3b00298.pdf",
    "parts": {
      "symbol": "ob3379acpa.kicad_sym",
      "footprint": "ob3379acpa.kicad_mod",
      "model_3d": "ob3379acpa-hero.glb",
      "model_3d_plain": "ob3379acpa-etched.glb",
      "model_3d_step": "ob3379acpa-etched.step",
      "model_3d_step_plain": "ob3379acpa.step",
      "lbr": "ob3379acpa.lbr"
    },
    "distributor_links": {
      "lcsc": "C48392378"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:54:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 843 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input, operating range 9V to 30V with UVLO exit at 8V typ and enter at 7.2V typ."
      },
      {
        "number": "2",
        "name": "ADIM",
        "type": "input",
        "description": "Analog dimming input (0V to 5V) whose voltage sets the internal reference that decides the LED current; a capacitor to GND gives external soft start."
      },
      {
        "number": "3",
        "name": "HPWM",
        "type": "input",
        "description": "PWM-to-analog dimming input (200Hz to 40kHz) and sleep-mode enable pin, with about 2.5V needed to enable and 1.3V low threshold."
      },
      {
        "number": "4",
        "name": "LPF",
        "type": "passive",
        "description": "Filter pin that is left floating for HPWM between 10kHz and 40kHz, or has a capacitor to GND for HPWM between 200Hz and 10kHz to reduce output current ripple."
      },
      {
        "number": "5",
        "name": "ZVS",
        "type": "input",
        "description": "Quasi-resonant zero-voltage/demagnetization detection input, rated -0.7V to 35V, with LED open protection threshold of 4V typ."
      },
      {
        "number": "6",
        "name": "CS",
        "type": "input",
        "description": "Current sensing terminal connected to the sense resistor, rated -0.3V to 7V, with 0.8V typ OCP threshold and open-pin protection at 2V typ."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground."
      },
      {
        "number": "8",
        "name": "GATE",
        "type": "output",
        "description": "Gate driver output for the external MOSFET, rated -0.3V to 35V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet lists pin I/O as P/I/O generically; types for ADIM, HPWM, LPF, ZVS, CS, GATE were assigned; OB3379ACPA is the SOP8 halogen-free tape and reel version, so the SOP-8 pinout applies. Datasheet is"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0843,
        "at": "2026-10-22T22:53:48"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/4c210be76926b135a056c2ebd3b00298.pdf",
        "pages": 11,
        "sha256": "c81351519837c583",
        "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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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "OB(On-Bright Elec)",
      "Package": "SOP-8",
      "Category": "LED Drivers",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c81351519837c5831f56918fc03637fb0111883153d28db7ccaade1463c022b3",
      "rows": [
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          "name": "Input voltage range",
          "symbol": "Vin",
          "kind": "electrical",
          "unit": "V",
          "min": 9,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating supply current",
          "symbol": "IVin",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.1,
          "max": 1.3,
          "conditions": "Vin=12V,HPWM=5V no load",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Stand by current",
          "symbol": "IVin_stb",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 30,
          "max": 40,
          "conditions": "HPWM low >15ms sleep mode",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Vin under voltage lockout exit (recovery)",
          "symbol": "UVLO(OFF)",
          "kind": "electrical",
          "unit": "V",
          "min": 7,
          "typ": 8,
          "max": 9,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Vin under voltage lockout enter",
          "symbol": "UVLO(ON)",
          "kind": "electrical",
          "unit": "V",
          "min": 6.2,
          "typ": 7.2,
          "max": 8.2,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Time of leading edge blanking",
          "symbol": "Tleb",
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          "unit": "ns",
          "min": 300,
          "typ": 400,
          "max": 500,
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        },
        {
          "name": "Max gate off time",
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          "typ": 630,
          "max": 756,
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        {
          "name": "Max gate on time",
          "symbol": "Ton max",
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          "unit": "us",
          "min": 40,
          "typ": 50,
          "max": 60,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Reference voltage of Error amplifier",
          "symbol": "Vth_ea",
          "kind": "electrical",
          "unit": "mV",
          "min": 245,
          "typ": 250,
          "max": 255,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Threshold of ZVS pin LED open protection",
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          "kind": "electrical",
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          "min": 3.8,
          "typ": 4,
          "max": 4.2,
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        },
        {
          "name": "VIN, ADIM, HPWM, LPF, GATE to GND",
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          "min": -0.3,
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        {
          "name": "ZVS to GND",
          "symbol": "",
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          "min": -0.7,
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          "max": 35,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "CS to GND",
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          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operating Ambient Temp.",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        {
          "name": "Operating Junction Temp.",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Storage Temp.",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "Min/Max",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temp.",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 Sec",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Vin Voltage",
          "symbol": "Vin",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 9,
          "typ": null,
          "max": 30,
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        {
          "name": "ADIM Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 5,
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          "source": "datasheet"
        },
        {
          "name": "ZVS Positive Plateau Voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "0.6V to VthZVS",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "SOP8",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ADIM Inner Clamp Voltage",
          "symbol": "VADIM",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "ADIM=2.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ADIM source current",
          "symbol": "IADIM_up",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HPWM Input Threshold high",
          "symbol": "HPWM(high)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "High Level",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "HPWM Input Threshold low",
          "symbol": "HPWM(low)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.3,
          "max": null,
          "conditions": "Low Level",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Sleep mode time",
          "symbol": "T_sleep",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Threshold of over current protection",
          "symbol": "Vthocp",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.8,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Max frequency",
          "symbol": "F max",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 230,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Threshold of diode & Inductor short protection",
          "symbol": "Vthcs_high1",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Threshold of CS pin open protection",
          "symbol": "Vthcs_high2",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Temperature of thermal shutdown",
          "symbol": "TOTP_ON",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Temperature of thermal shutdown release",
          "symbol": "TOTP_OFF",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Gate rise time",
          "symbol": "Trise",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "1nF load",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Gate fall time",
          "symbol": "Tfall",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "1nF load",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "OB3379ACPA (OB(On-Bright Elec)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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