main
Ray Set visibility: public 9913587 14d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "lm386bn-1",
  "title": "LM386BN-1",
  "brief": "HGSEMI Audio Amplifiers, DIP-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": [
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  "component": {
    "mpn": "LM386BN-1",
    "manufacturer": "HGSEMI",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Amplifiers/Comparators",
    "subcategory": "Audio Amplifiers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758141737317339136",
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      "lbr": "lm386bn-1.lbr"
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    "distributor_links": {
      "lcsc": "C7432385"
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    "distributor_check": {
      "checked_at": "2026-10-14T22:27:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GAIN",
        "type": "passive",
        "description": "Gain-set pin: left open, the internal 1.35 kΩ resistor sets the voltage gain to 20 (26 dB); a capacitor between pins 1 and 8 bypasses that resistor to raise the gain to 200 (46 dB), and an RC series network between pins 1 and 8 sets any gain from 20 to 200."
      },
      {
        "number": "2",
        "name": "IN-",
        "type": "input",
        "description": "Inverting input referenced to ground through an internal 50 kΩ resistor, with an input bias current of about 250 nA (typ, Vcc=6 V) and a maximum input voltage of ±0.4 V."
      },
      {
        "number": "3",
        "name": "IN+",
        "type": "input",
        "description": "Non-inverting input referenced to ground through an internal 50 kΩ resistor, with an input bias current of about 250 nA (typ, Vcc=6 V) and a maximum input voltage of ±0.4 V."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the inputs, output and supply."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "output",
        "description": "Amplifier output, automatically biased to half the supply voltage; output power is 325 mW typ at Vcc=6 V into 8 Ω at 10% THD (500 mW min at Vcc=9 V)."
      },
      {
        "number": "6",
        "name": "Vs",
        "type": "power_in",
        "description": "Supply pin; operating supply range is 4 V to 12 V, with an absolute maximum of 15 V."
      },
      {
        "number": "7",
        "name": "BYPASS",
        "type": "passive",
        "description": "Bypass pin; the datasheet's PSRR test uses a 10 µF bypass capacitor (CBYPASS) and gives no further functional limit for this pin."
      },
      {
        "number": "8",
        "name": "GAIN",
        "type": "passive",
        "description": "Gain-set pin paired with pin 1: capacitor or RC network between pins 1 and 8 changes the gain from the internal default of 20 up to 200."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 datasheet gives the pin table for DIP-8/SOP-8/MSOP-8 together and does not say which variant the; Pin 7 BYPASS has no stated function or limit beyond its name and the PSRR test condition (CBYPASS=10; Pin 1 and pin 8 (both labelled GAIN) have their behaviour described in the application notes rather "
        ],
        "pages_sent": 10,
        "cost_usd": 0.0305,
        "at": "2026-10-14T22:27:04"
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        "pages": 10,
        "sha256": "3500d8afa6a2f178",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "checked": "2026-10-14",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "DIP-8",
      "Category": "Amplifiers/Comparators",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3500d8afa6a2f178f444834f6beb461d54f1e698066215f7ef7c6beaa12398d0",
      "rows": [
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          "name": "Operating supply voltage",
          "symbol": "Vcc",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": 12,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.4,
          "typ": null,
          "max": 0.4,
          "conditions": "",
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        },
        {
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          "symbol": "Vcc",
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          "min": null,
          "typ": null,
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          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Maximum allowable power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 660,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "Ts",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 s",
          "source_page": 3,
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        },
        {
          "name": "Junction temperature",
          "symbol": "Tj",
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          "unit": "℃",
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        {
          "name": "Operating temperature",
          "symbol": "Tamb",
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          "unit": "℃",
          "min": 0,
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        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
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          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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        },
        {
          "name": "Quiescent supply current",
          "symbol": "Icc",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4,
          "max": 8,
          "conditions": "Vcc=6V, VIN=0",
          "source_page": 4,
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        },
        {
          "name": "Output power",
          "symbol": "Po",
          "kind": "electrical",
          "unit": "mW",
          "min": 250,
          "typ": 325,
          "max": null,
          "conditions": "Vcc=6V, RL=8Ω, THD=10%",
          "source_page": 4,
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        },
        {
          "name": "Output power",
          "symbol": "Po",
          "kind": "electrical",
          "unit": "mW",
          "min": 500,
          "typ": 700,
          "max": null,
          "conditions": "Vcc=9V, RL=8Ω, THD=10%",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Voltage gain",
          "symbol": "Av",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 26,
          "max": null,
          "conditions": "Vcc=6V, f=1kHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Voltage gain (pins 1-8 connected 10μF capacitor)",
          "symbol": "Av",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 46,
          "max": null,
          "conditions": "1脚、8脚间接 10μF 电容",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Bandwidth",
          "symbol": "BW",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "Vcc=6V,脚 1、8 开路",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Total harmonic distortion",
          "symbol": "THD",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "Vcc=6V,RL=8Ω,Po=125mW,f=1kHz,脚 1、8 开路",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power supply rejection ratio",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "Vcc=6V,f=1kHz,CBYPASS=10μF,1、8 脚开路、输出为参考",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input resistance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input bias current",
          "symbol": "IB",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "Vcc=6V,2、3 脚开路",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "LM386BN-1 (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}