BMM350

{
  "schema_version": 1,
  "type": "component",
  "slug": "bmm350",
  "title": "BMM350",
  "brief": "Bosch Sensortec Specialized Sensors, WLCSP-9(1.3x1.3). 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",
    "sensors",
    "bmm350",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BMM350",
    "manufacturer": "Bosch Sensortec",
    "package": "WLCSP-9(1.3x1.3)",
    "pin_count": 9,
    "category": "Sensors",
    "subcategory": "Specialized Sensors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602823677185060864",
    "parts": {
      "symbol": "bmm350.kicad_sym",
      "footprint": "bmm350.kicad_mod",
      "model_3d": "bmm350-hero.glb",
      "model_3d_plain": "bmm350-etched.glb",
      "model_3d_step": "bmm350-etched.step",
      "model_3d_step_plain": "bmm350.step",
      "lbr": "bmm350.lbr"
    },
    "distributor_links": {
      "lcsc": "C17225907"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T20:19:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "A1",
        "name": "INT",
        "type": "output",
        "description": "Interrupt output of the BMM350."
      },
      {
        "number": "A2",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C / I3C data line."
      },
      {
        "number": "A3",
        "name": "SCK",
        "type": "input",
        "description": "I2C / I3C clock line."
      },
      {
        "number": "B1",
        "name": "GND",
        "type": "power_in",
        "description": "Analog, digital and IO ground."
      },
      {
        "number": "B2",
        "name": "ADSEL",
        "type": "input",
        "description": "Logic status of ADSEL defines the LSB of the I2C legacy address; connect to GND or VDDIO."
      },
      {
        "number": "B3",
        "name": "VDDIO",
        "type": "power_in",
        "description": "IO supply; use a decoupling capacitor (100 nF per the connection diagram), with a VDDIO range of 1.72 V to 3.6 V."
      },
      {
        "number": "C1",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital and analog supply; use a decoupling capacitor (100 nF per the connection diagram), with a VDD range of 1.72 V to 1.98 V."
      },
      {
        "number": "C2",
        "name": "CRST",
        "type": "passive",
        "description": "Connect to an external 2.2 µF low-inductance capacitor (non-magnetic, low-resistance type), which must support 200 mA peak current."
      },
      {
        "number": "C3",
        "name": "BYPASS",
        "type": "passive",
        "description": "Connect to ground."
      }
    ],
    "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: Datasheet says only 'Connect to ground' for BYPASS; no electrical class is given, so passive was cho; I2C/I3C electrical types for SCK and SDA are not stated explicitly in the text; SCK was typed as inp; INT is described only as 'Interrupt output'; its drive type (push-pull vs open-drain) and voltage li"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0526,
        "at": "2026-10-17T20:17:31"
      },
      "datasheet": {
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        "pages": 63,
        "sha256": "db26bd71f271fcea",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
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        "units": "mm",
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        "seat": "z = 0",
        "extents_mm": [
          1.21,
          1.22,
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        "zmin_mm": -0.007,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2761b77e9764240fbf79c91412b2bd127e1a30cb1a2103ceae4ce4c1a86308df",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Bosch Sensortec",
      "Package": "WLCSP-9(1.3x1.3)",
      "Category": "Sensors",
      "Pins": "9"
    },
    "characteristics": {
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          "name": "Supply voltage, I/O domain (VDDIO)",
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        {
          "name": "Voltage output low level",
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        {
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          "typ": null,
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        {
          "name": "Current in normal mode (regular power setting)",
          "symbol": "Idd,n,rp",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 200,
          "max": null,
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          "source": "datasheet"
        },
        {
          "name": "Current in normal mode (low noise)",
          "symbol": "Idd,n,ln",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 350,
          "max": null,
          "conditions": "ODR=100, 25°C, averaging=4 samples",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Current in suspend mode",
          "symbol": "Idd,sus",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 1.8,
          "max": null,
          "conditions": "data retention",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Peak supply current in active mode (normal or forced mode)",
          "symbol": "IDDpk,m",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.5,
          "max": null,
          "conditions": "In measurement phase; TA=25°C, before bit reset",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Sensor start-up time (suspend to normal mode)",
          "symbol": "Tsus2nm",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "Start-up time from suspend mode to normal mode",
          "source_page": 8,
          "source": "datasheet"
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        {
          "name": "Sensor start-up time (OFF to suspend mode)",
          "symbol": "Tpon2sus",
          "kind": "timing",
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          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "Start-up time from OFF to suspend mode",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity/gain error after soldering, x/y axis",
          "symbol": "Gerr,m",
          "kind": "tolerance",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "After API compensation; TA=25°C; Nominal VDD supplies; x/y axis",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity/gain error after soldering, Z axis",
          "symbol": "Gerr,m",
          "kind": "tolerance",
          "unit": "%",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "After API compensation; TA=25°C; Nominal VDD supplies; Z axis",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity temperature drift",
          "symbol": "TCSm",
          "kind": "temperature_coefficient",
          "unit": "%/K",
          "min": -0.01,
          "typ": null,
          "max": 0.01,
          "conditions": "After API compensation; -40°C ≤ TA ≤ +85°C; Nominal VDD supplies; all axis",
          "source_page": 10,
          "source": "datasheet"
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        {
          "name": "TCO error",
          "symbol": "TCOerr",
          "kind": "temperature_coefficient",
          "unit": "nT/K",
          "min": -200,
          "typ": null,
          "max": 200,
          "conditions": "-40°C to 85°C",
          "source_page": 10,
          "source": "datasheet"
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        {
          "name": "Hysteresis, x/y axis",
          "symbol": "hystxy",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.02,
          "max": null,
          "conditions": "RT, after FSS, in % of FSS",
          "source_page": 10,
          "source": "datasheet"
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        {
          "name": "Hysteresis, z axis",
          "symbol": "hystz",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "RT, after FSS, no reset, in % of FSS",
          "source_page": 10,
          "source": "datasheet"
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        {
          "name": "Integral nonlinearity, x/y axis",
          "symbol": "INLm,FS",
          "kind": "electrical",
          "unit": "µT",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Max. deviation to best fit straight line; x/y axis",
          "source_page": 10,
          "source": "datasheet"
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        {
          "name": "Integral nonlinearity, z axis",
          "symbol": "INLm,FS",
          "kind": "electrical",
          "unit": "µT",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "Max. deviation to best fit straight line; z axis",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output noise rms, x/y channel",
          "symbol": "nrms,xy",
          "kind": "electrical",
          "unit": "nTrms",
          "min": -190,
          "typ": null,
          "max": 190,
          "conditions": "3dB BW= ODR/2; x.y channel; ODR=100; averaging=2 samples",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Output noise rms, z channel",
          "symbol": "nrms,z",
          "kind": "electrical",
          "unit": "nTrms",
          "min": -450,
          "typ": null,
          "max": 450,
          "conditions": "3dB BW= ODR/2; z channel; ODR=100; averaging=2 samples",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity drift after magnetic field shock recovery",
          "symbol": "",
          "kind": "electrical",
          "unit": "µT",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "250 mT",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity drift after magnetic field shock recovery (relative)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "250 mT",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Voltage at supply pin VDD",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 2,
          "conditions": "VDD Pin",
          "source_page": 11,
          "source": "datasheet"
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        {
          "name": "Voltage at supply pin VDDIO",
          "symbol": "VDDIO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 3.6,
          "conditions": "VDDIO Pin",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Voltage at any logic pad",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Non-supply pin",
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          "source": "datasheet"
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          "name": "Operating temperature, TA",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Active operation",
          "source_page": 11,
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        {
          "name": "Passive storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -50,
          "typ": null,
          "max": 125,
          "conditions": "≤ 65% rel. H.",
          "source_page": 11,
          "source": "datasheet"
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        {
          "name": "Non-volatile memory (OTP) data retention",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "year",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "T = 85°C",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Mechanical shock (JESD22-B104C)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "g",
          "min": null,
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          "conditions": "Duration ≤ 500µs",
          "source_page": 11,
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        {
          "name": "Drop in reel onto hard surfaces",
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          "name": "ESD HBM at any pin",
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          "unit": "kV",
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          "conditions": "",
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          "name": "ESD CDM",
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          "name": "Latch-up",
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          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Magnetic field, any direction",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mT",
          "min": -250,
          "typ": null,
          "max": 250,
          "conditions": "Any direction",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "CRST external capacitor (nominal value)",
          "symbol": "CRST",
          "kind": "electrical",
          "unit": "uF",
          "min": null,
          "typ": 2.2,
          "max": null,
          "conditions": "",
          "source_page": 60,
          "source": "datasheet"
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  "discovery_pitch": "BMM350 (Bosch Sensortec) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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