WS742128M-10

{
  "schema_version": 1,
  "type": "component",
  "slug": "ws742128m-10",
  "title": "WS742128M-10",
  "brief": "WILLSEMI(Will Semicon) Audio Power OpAmps, MSOP-10. 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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    "amplifiers",
    "ws742128m-10",
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    "extractor-text"
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  "component": {
    "mpn": "WS742128M-10",
    "manufacturer": "WILLSEMI(Will Semicon)",
    "package": "MSOP-10",
    "pin_count": 10,
    "category": "Amplifiers",
    "subcategory": "Audio Power OpAmps",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7eab5e9424af17bbf07916e0e7cae030.pdf",
    "parts": {
      "symbol": "ws742128m-10.kicad_sym",
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      "lbr": "ws742128m-10.lbr"
    },
    "distributor_links": {
      "lcsc": "C717882"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T21:28:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "-INR",
        "type": "input",
        "description": "Right-channel negative input; with RIN and RFB the voltage gain is RFB/RIN, with gain range ±1 V/V to ±10 V/V set by external resistors."
      },
      {
        "number": "2",
        "name": "OUTR",
        "type": "output",
        "description": "Right-channel output; it can drive up to 220 pF directly, and higher capacitive loads require a series resistor of 47 Ω or larger."
      },
      {
        "number": "3",
        "name": "EN",
        "type": "input",
        "description": "Active-high enable input with VIH of 1.1 V minimum and VIL of 0.4 V maximum; keep it low during supply ramp-up and ramp-down for pop-free power-up."
      },
      {
        "number": "4",
        "name": "PVSS",
        "type": "power_in",
        "description": "Negative supply pin generated by the charge pump; its storage capacitor should be at least equal to the charge-pump capacitor, with a typical value of 1 µF."
      },
      {
        "number": "5",
        "name": "CN",
        "type": "passive",
        "description": "Charge-pump flying capacitor negative terminal; a low-ESR X5R or X7R capacitor with a typical value of 0.33 µF is recommended."
      },
      {
        "number": "6",
        "name": "CP",
        "type": "passive",
        "description": "Charge-pump flying capacitor positive terminal; a low-ESR X5R or X7R capacitor with a typical value of 0.33 µF is recommended."
      },
      {
        "number": "7",
        "name": "PVDD",
        "type": "power_in",
        "description": "Positive supply pin; the single supply voltage range is 3.0 V to 5.5 V, with decoupling of 0.1 µF and 10 µF placed close to the pin."
      },
      {
        "number": "8",
        "name": "UVP",
        "type": "input",
        "description": "External under-voltage protection input; the internal threshold VUVP is 1.14 V to 1.31 V (1.21 V typical), with a 4.7 µA hysteresis current, and the output is muted when the supply falls below the set level."
      },
      {
        "number": "9",
        "name": "OUTL",
        "type": "output",
        "description": "Left-channel output; it can drive up to 220 pF directly, and higher capacitive loads require a series resistor of 47 Ω or larger."
      },
      {
        "number": "10",
        "name": "-INL",
        "type": "input",
        "description": "Left-channel negative input; with RIN and RFB the voltage gain is RFB/RIN, with gain range ±1 V/V to ±10 V/V set by external resistors."
      }
    ],
    "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 pin-configuration drawing text on page 1 is scrambled (pin numbers and names are not in a clear ; The exposed pad is listed as 'EP' in the datasheet rather than a numeric pin; it is reported here as; The UVP section on pages 10-11 refers to the UVP pin as 'pin 11', which does not exist on the 10-pin",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0526,
        "at": "2026-10-30T21:28:04"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7eab5e9424af17bbf07916e0e7cae030.pdf",
        "pages": 13,
        "sha256": "426e3c066f094f53",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
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        "sha256": "2b206242802edc93cdbe36efe245744ce424b4df8add4ab2489fe3cdc7bc2fd4",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "MSOP-10L",
      "source_page": 12,
      "D": {
        "nom_mm": 3,
        "range_mm": [
          2.9,
          3.1
        ]
      },
      "E1": {
        "nom_mm": 3,
        "range_mm": [
          2.9,
          3.1
        ]
      },
      "E": {
        "nom_mm": 4.9,
        "range_mm": [
          4.75,
          5.05
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.96,
        "range_mm": [
          0.82,
          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ws742128m-10.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WILLSEMI(Will Semicon)",
      "Package": "MSOP-10",
      "Category": "Amplifiers",
      "Pins": "10"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "426e3c066f094f5399839f48f619cd131b36971f2b90eccc8bc7e58b1e6701aa",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": 5,
          "max": 5.5,
          "conditions": "* full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "TA",
          "kind": "electrical",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "* full operating temperature range",
          "source_page": 3,
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        },
        {
          "name": "Output Offset Voltage",
          "symbol": "Vos",
          "kind": "electrical",
          "unit": "mV",
          "min": -3.5,
          "typ": 0.6,
          "max": 3.5,
          "conditions": "VDD=3V to 5V, input grounded, unity gain; * full operating temperature range",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "External under-voltage detection",
          "symbol": "VUVP",
          "kind": "electrical",
          "unit": "V",
          "min": 1.14,
          "typ": 1.21,
          "max": 1.31,
          "conditions": "VDD=3.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "External under-voltage detection",
          "symbol": "VUVP",
          "kind": "electrical",
          "unit": "V",
          "min": 1.14,
          "typ": 1.21,
          "max": 1.31,
          "conditions": "VDD=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
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          "max": 30,
          "conditions": "VDD=3.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum output current",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
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          "max": 60,
          "conditions": "VDD=5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
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        {
          "name": "Input Differential Voltage",
          "symbol": "VIDR",
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          "min": null,
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          "conditions": "",
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          "name": "Operating Free-Air Temperature Range",
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          "conditions": "",
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
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          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature Range",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Lead Temperature Range",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Thermal resistance, junction to ambient",
          "symbol": "ΘJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 190,
          "max": null,
          "conditions": "MSOP-10 package",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "WS742128M-10 (WILLSEMI(Will Semicon)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
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    "name": "Ray",
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