SP3485ECMM

{
  "schema_version": 1,
  "type": "component",
  "slug": "sp3485ecmm",
  "title": "SP3485ECMM",
  "brief": "HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, MSOP-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",
    "power management (pmic)",
    "sp3485ecmm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SP3485ECMM",
    "manufacturer": "HGSEMI",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8770707243664576512",
    "parts": {
      "symbol": "sp3485ecmm.kicad_sym",
      "footprint": "sp3485ecmm.kicad_mod",
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      "model_3d_plain": "sp3485ecmm-etched.glb",
      "model_3d_step": "sp3485ecmm-etched.step",
      "model_3d_step_plain": "sp3485ecmm.step",
      "lbr": "sp3485ecmm.lbr"
    },
    "distributor_links": {
      "lcsc": "C5310823"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T15:00:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: with RE low, RO is high when A-B is at or above +200 mV and low when A-B is at or below -200 mV."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable, active low: RE high disables the receiver so RO is high-impedance, and RE high with DE low puts the device into low-power shutdown."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable, active high: DE low puts the driver outputs in high-impedance, and RE high with DE low puts the device into low-power shutdown."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input: with DE high, a low on DI drives A low and B high, and a high on DI drives A high and B low."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; all voltages in the datasheet are referenced to this pin."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting receiver input and non-inverting driver output on the RS-485 bus."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting receiver input and inverting driver output on the RS-485 bus."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin; the device operates from 3.0 to 3.6 V (3.3 V ±10%), with absolute maximum VCC of +7 V."
      }
    ],
    "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 datasheet gives one pin-definition table (page 3) for the 8-pin packages, and page 2 states the ; The datasheet text is in Chinese and was translated into English for the descriptions. Pin names and; The pin-type mapping is my interpretation: A and B are typed bidirectional because they are both the"
        ],
        "pages_sent": 17,
        "cost_usd": 0.0528,
        "at": "2026-10-17T14:58:22"
      },
      "datasheet": {
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        "pages": 17,
        "sha256": "c05da1a89ebea3bb",
        "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"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          0.95
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "MSOP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c05da1a89ebea3bb3cc5196d508ff38070c4ca9db475c8d5c3f6e964245409d6",
      "rows": [
        {
          "name": "Differential driver output voltage (RL=54Ω)",
          "symbol": "VOD2",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "图 2，RL = 54Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Differential driver output voltage (RL=100Ω)",
          "symbol": "VOD2",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "图 2，RL = 100 Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Change in magnitude of differential output voltage",
          "symbol": "ΔVOD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "图 2，RL = 54 Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Driver common-mode output voltage",
          "symbol": "VOC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "图 2，RL = 54 Ω",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Change in magnitude of common-mode output voltage",
          "symbol": "ΔVOC",
          "kind": "electrical",
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          "max": 0.2,
          "conditions": "图 2，RL = 54 Ω",
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        },
        {
          "name": "High-level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
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          "typ": null,
          "max": null,
          "conditions": "DE，DI，RE",
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        {
          "name": "Low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "DE，DI，RE",
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          "source": "datasheet"
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        {
          "name": "Logic input current",
          "symbol": "IIN1",
          "kind": "electrical",
          "unit": "uA",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "DE，DI，RE",
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          "source": "datasheet"
        },
        {
          "name": "Output short-circuit current, shorted to high",
          "symbol": "IOSD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "短路到 0V~12V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output short-circuit current, shorted to low",
          "symbol": "IOSD2",
          "kind": "electrical",
          "unit": "mA",
          "min": -250,
          "typ": null,
          "max": null,
          "conditions": "短路到-7V~0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input current (A, B)",
          "symbol": "IIN2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "DE = 0 V, VCC=0 或 3.3V,VIN = 12 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input current (A, B)",
          "symbol": "IIN2",
          "kind": "electrical",
          "unit": "mA",
          "min": -0.8,
          "typ": null,
          "max": null,
          "conditions": "DE = 0 V, VCC=0 或 3.3V,VIN = -7 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Positive input threshold voltage",
          "symbol": "VIT+",
          "kind": "electrical",
          "unit": "mV",
          "min": 200,
          "typ": null,
          "max": null,
          "conditions": "-7V≦VCM≦12V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Negative input threshold voltage",
          "symbol": "VIT-",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": -200,
          "conditions": "-7V≦VCM≦12V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input hysteresis voltage",
          "symbol": "Vhys",
          "kind": "electrical",
          "unit": "mV",
          "min": 10,
          "typ": null,
          "max": 30,
          "conditions": "-7V≦VCM≦12V",
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          "source": "datasheet"
        },
        {
          "name": "Low-level output voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "IOUT = +2.5mA，VID = -200 mV",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Three-state input leakage current",
          "symbol": "IOZR",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "0.4 V < VO < 2.4 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver input resistance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 12,
          "typ": null,
          "max": null,
          "conditions": "-7V≦VCM≦12V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver short-circuit current",
          "symbol": "IOSR",
          "kind": "electrical",
          "unit": "mA",
          "min": -60,
          "typ": null,
          "max": 60,
          "conditions": "0 V≤VO≤VCC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current (RE=0V, DE=0V)",
          "symbol": "ICC1",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "RE =0V，DE = 0 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current (RE=VCC, DE=VCC)",
          "symbol": "ICC2",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "RE =VCC，DE=VCC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "RE =VCC，DE=0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM (A/B pins)",
          "symbol": "",
          "kind": "electrical",
          "unit": "kV",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "HBM 人体模式",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD MM (A/B pins)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": -800,
          "typ": null,
          "max": 800,
          "conditions": "MM 机器模式",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD contact discharge (A/B pins)",
          "symbol": "",
          "kind": "electrical",
          "unit": "kV",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "IEC 61000-4-2 接触放电",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD air discharge (A/B pins)",
          "symbol": "",
          "kind": "electrical",
          "unit": "kV",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "IEC 61000-4-2 空气放电",
          "source_page": 5,
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        {
          "name": "ESD HBM (other pins)",
          "symbol": "",
          "kind": "electrical",
          "unit": "kV",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "HBM 人体模式",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Driver differential output delay",
          "symbol": "tDD",
          "kind": "timing",
          "unit": "ns",
          "min": 10,
          "typ": null,
          "max": 35,
          "conditions": "RDIFF = 60 Ω, CL1=CL2=100pF (见图 3 与图 4)",
          "source_page": 6,
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        },
        {
          "name": "Driver differential transition time",
          "symbol": "tTD",
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        {
          "name": "Driver propagation delay, low to high",
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          "kind": "timing",
          "unit": "ns",
          "min": 8,
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          "conditions": "RDIFF = 27 Ω, (见图 3 与图 4)",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Driver propagation delay, high to low",
          "symbol": "tPHL",
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          "min": 8,
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        {
          "name": "Driver propagation delay skew |tPLH-tPHL|",
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        {
          "name": "Enable to output high",
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          "kind": "timing",
          "unit": "ns",
          "min": 20,
          "typ": null,
          "max": 90,
          "conditions": "RL = 110Ω，（见图 5、6）",
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          "source": "datasheet"
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        {
          "name": "Enable to output low",
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          "name": "Input low to disable",
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          "name": "Enable to output high from shutdown",
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          "conditions": "RL = 110Ω，（见图 5、6）",
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          "source": "datasheet"
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          "name": "Enable to output low from shutdown",
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          "conditions": "RL = 110Ω，（见图 5、6）",
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          "source": "datasheet"
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          "name": "Receiver propagation delay, input to output low to high",
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          "typ": null,
          "max": 150,
          "conditions": "CL=15pF，见图 7 与图 8",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Receiver propagation delay, input to output high to low",
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          "source_page": 7,
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        {
          "name": "Receiver propagation delay skew |tRPLH − tRPHL|",
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          "unit": "ns",
          "min": 7,
          "typ": null,
          "max": 10,
          "conditions": "",
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        {
          "name": "Enable to output low time",
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          "typ": null,
          "max": 50,
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          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Enable to output high time",
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          "name": "Output low to disable time",
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          "conditions": "CL=15pF，见图 7 与图 8",
          "source_page": 7,
          "source": "datasheet"
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        {
          "name": "Output high to disable time",
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          "name": "Enable to output high time from shutdown",
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          "conditions": "CL=15pF，见图 7 与图 8",
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          "source": "datasheet"
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        {
          "name": "Enable to output low time from shutdown",
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          "conditions": "CL=15pF，见图 7 与图 8",
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        {
          "name": "Time to enter shutdown",
          "symbol": "tSHDN",
          "kind": "timing",
          "unit": "ns",
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          "typ": null,
          "max": 300,
          "conditions": "NOTE2",
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        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
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          "conditions": "",
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        {
          "name": "Control port voltage (RE, DE, DI)",
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          "typ": null,
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        {
          "name": "Bus-side input voltage (A, B)",
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          "unit": "V",
          "min": -7,
          "typ": null,
          "max": 13,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Receiver output voltage",
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