CA-IS3841HW

{
  "schema_version": 1,
  "type": "component",
  "slug": "ca-is3841hw",
  "title": "CA-IS3841HW",
  "brief": "Chipanalog Digital Isolators, SOIC-16-300mil. 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",
    "signal isolation devices",
    "ca-is3841hw",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CA-IS3841HW",
    "manufacturer": "Chipanalog",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Signal Isolation Devices",
    "subcategory": "Digital Isolators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602993946251304960",
    "parts": {
      "symbol": "ca-is3841hw.kicad_sym",
      "footprint": "ca-is3841hw.kicad_mod",
      "model_3d": "ca-is3841hw-hero.glb",
      "model_3d_plain": "ca-is3841hw-etched.glb",
      "model_3d_step": "ca-is3841hw-etched.step",
      "model_3d_step_plain": "ca-is3841hw.step",
      "lbr": "ca-is3841hw.lbr"
    },
    "distributor_links": {
      "lcsc": "C7422547"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T07:38:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDDA",
        "type": "power_in",
        "description": "A-side supply voltage, recommended 2.375 V to 5.5 V; the datasheet calls for a 0.1 µF to 1 µF bypass capacitor placed within 2 mm of the pin."
      },
      {
        "number": "2",
        "name": "GNDA",
        "type": "power_in",
        "description": "A-side ground reference point for the input-side supply and logic."
      },
      {
        "number": "3",
        "name": "VI1",
        "type": "input",
        "description": "A-side logic input of forward channel 1; accepts CMOS and TTL levels and sinks only microampere-level leakage."
      },
      {
        "number": "4",
        "name": "VI2",
        "type": "input",
        "description": "A-side logic input of forward channel 2; accepts CMOS and TTL levels and sinks only microampere-level leakage."
      },
      {
        "number": "5",
        "name": "VI3",
        "type": "input",
        "description": "A-side logic input of forward channel 3 on the CA-IS3841 (pin shared with VO3 on other variants); accepts CMOS and TTL levels."
      },
      {
        "number": "6",
        "name": "VO4",
        "type": "output",
        "description": "A-side logic output of the reverse channel 4 on the CA-IS3841; push-pull output with about 50 Ω output impedance, high-Z when ENA is low."
      },
      {
        "number": "7",
        "name": "ENA",
        "type": "input",
        "description": "A-side enable input, active high or floating (internally pulled up to local VDD); drive it to a defined logic level in noisy environments and keep traces off it if left floating."
      },
      {
        "number": "8",
        "name": "GNDA",
        "type": "power_in",
        "description": "A-side ground reference point for the input-side supply and logic."
      },
      {
        "number": "9",
        "name": "GNDB",
        "type": "power_in",
        "description": "B-side ground reference point for the output-side supply and logic."
      },
      {
        "number": "10",
        "name": "ENB",
        "type": "input",
        "description": "B-side enable input, active high or floating (internally pulled up to local VDD); when low, outputs VO1 to VO3 go high-impedance."
      },
      {
        "number": "11",
        "name": "VI4",
        "type": "input",
        "description": "B-side logic input of reverse channel 4 on the CA-IS3841 (pin shared with VO4 on other variants); accepts CMOS and TTL levels."
      },
      {
        "number": "12",
        "name": "VO3",
        "type": "output",
        "description": "B-side logic output of forward channel 3 on the CA-IS3841 (pin shared with VI3 on other variants); push-pull output with about 50 Ω output impedance."
      },
      {
        "number": "13",
        "name": "VO2",
        "type": "output",
        "description": "B-side logic output of forward channel 2; push-pull output with about 50 Ω output impedance, high-Z when ENB is low."
      },
      {
        "number": "14",
        "name": "VO1",
        "type": "output",
        "description": "B-side logic output of forward channel 1; push-pull output with about 50 Ω output impedance, high-Z when ENB is low."
      },
      {
        "number": "15",
        "name": "GNDB",
        "type": "power_in",
        "description": "B-side ground reference point for the output-side supply and logic."
      },
      {
        "number": "16",
        "name": "VDDB",
        "type": "power_in",
        "description": "B-side supply voltage, recommended 2.375 V to 5.5 V; the datasheet calls for a 0.1 µF to 1 µF bypass capacitor placed within 2 mm of the pin."
      }
    ],
    "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: These pins carry a shared VI/VO function that depends on the variant. The pinout here follows the CA; Pin 7 is printed as 'NC1/ENA2' in the table. For the CA-IS3841 it is the ENA enable input (the 'no i; Datasheet says 'VDDA/VDDB' and GNDA/GNDB are each on two pins per side (1,2,8 on A side and 9,15,16 "
        ],
        "pages_sent": 24,
        "cost_usd": 0.1273,
        "at": "2026-10-19T07:36:02"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602993946251304960",
        "pages": 24,
        "sha256": "9db82420343a3e86",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ca-is3841hw.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ca-is3841hw-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "44baad05ae7644776fff983e908935f1165a3323b27a3a8ecd3e2051f7b1ea86",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Chipanalog",
      "Package": "SOIC-16-300mil",
      "Category": "Signal Isolation Devices",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "9db82420343a3e86a6f94ea845c25d6eef8652cad810f62e977d3315b6b66919",
      "rows": [
        {
          "name": "VDDA, VDDB supply voltage",
          "symbol": "VDDA, VDDB",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.375,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD rising UVLO threshold",
          "symbol": "VDD（UVLO+）",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.95,
          "typ": 2.24,
          "max": 2.375,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VDD falling UVLO threshold",
          "symbol": "VDD（UVLO-）",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.88,
          "typ": 2.1,
          "max": 2.325,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "UVLO hysteresis",
          "symbol": "VHYS（UVLO）",
          "kind": "recommended_operating",
          "unit": "mV",
          "min": 70,
          "typ": 140,
          "max": 250,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level output current",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -4,
          "conditions": "VDDO1 = 5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level output current",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -2,
          "conditions": "VDDO = 3.3V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level output current",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -1,
          "conditions": "VDDO = 2.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "VDDO = 5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "VDDO = 3.3V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VDDO = 2.5V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input threshold logic high",
          "symbol": "VIH",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input threshold logic low",
          "symbol": "VIL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Signal data rate",
          "symbol": "DR",
          "kind": "recommended_operating",
          "unit": "Mbps",
          "min": 0,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": 27,
          "max": 125,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VDDA, VDDB (absolute maximum)",
          "symbol": "VDDA, VDDB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage Ax, Bx, ENx (absolute maximum; printed max VDDA+0.5, see review)",
          "symbol": "Vin",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD human body model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -8000,
          "typ": null,
          "max": 8000,
          "conditions": "HBM, all pins, ANSI/ESDA/JEDEC JS-001",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "ESD charged device model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2000,
          "typ": null,
          "max": 2000,
          "conditions": "CDM, all pins, JESD22-C101",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipation (CA-IS3841)",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 334,
          "conditions": "VDDA = VDDB = 5.5 V, CL = 15 pF, TJ = 150°C, input 75-MHz 50% duty square wave",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipation, side A (CA-IS3841)",
          "symbol": "PDA",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VDDA = VDDB = 5.5 V, CL = 15 pF, TJ = 150°C, input 75-MHz 50% duty square wave",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipation, side B (CA-IS3841)",
          "symbol": "PDB",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 234,
          "conditions": "VDDA = VDDB = 5.5 V, CL = 15 pF, TJ = 150°C, input 75-MHz 50% duty square wave",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input threshold logic high, Ax/Bx (5 V)",
          "symbol": "VIT+(IN)",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input threshold logic low, Ax/Bx (5 V)",
          "symbol": "VIT-(IN)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Output voltage logic low (5 V)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "IOL = 4mA; 图 8-2",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input high leakage current (5 V)",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VIH = VDDA at Ax or Bx or ENx",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Input low leakage current (5 V)",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "VIL = 0 V at Ax or Bx",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Common-mode transient immunity (5 V)",
          "symbol": "CMTI",
          "kind": "electrical",
          "unit": "kV/µs",
          "min": 100,
          "typ": 150,
          "max": null,
          "conditions": "VI = VDDI1 or 0 V, VCM = 1200 V; 图 8-4",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Disable-state supply current IDDA, ENA=ENB=0 V, VIN=0 V (L) / VDDI (H) (5 V)",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.5,
          "max": 2.4,
          "conditions": "ENA = ENB = 0 V; VIN = 0V (CA-IS3841L); VIN = VDDI (CA-IS3841H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Disable-state supply current IDDB, ENA=ENB=0 V, VIN=0 V (L) / VDDI (H) (5 V)",
          "symbol": "IDDB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.3,
          "max": 3.6,
          "conditions": "ENA = ENB = 0 V; VIN = 0V (CA-IS3841L); VIN = VDDI (CA-IS3841H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Disable-state supply current IDDA, ENA=ENB=0 V, VIN=VDDI (L) / 0 V (H) (5 V)",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.1,
          "max": 6.8,
          "conditions": "ENA = ENB = 0 V; VIN = VDDI (CA-IS3841L); VIN = 0V(CA-IS3841H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Disable-state supply current IDDB, ENA=ENB=0 V, VIN=VDDI (L) / 0 V (H) (5 V)",
          "symbol": "IDDB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.2,
          "max": 5.1,
          "conditions": "ENA = ENB = 0 V; VIN = VDDI (CA-IS3841L); VIN = 0V(CA-IS3841H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "DC-signal supply current IDDA, ENA=ENB=VDDI, VIN=0 V (L) / VDDI (H) (5 V)",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1.6,
          "max": 2.5,
          "conditions": "ENA = ENB = VDDI; VIN = 0V (CA-IS3841L); VIN = VDDI (CA-IS3841H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "DC-signal supply current IDDB, ENA=ENB=VDDI, VIN=0 V (L) / VDDI (H) (5 V)",
          "symbol": "IDDB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.5,
          "max": 3.9,
          "conditions": "ENA = ENB = VDDI; VIN = 0V (CA-IS3841L); VIN = VDDI (CA-IS3841H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "DC-signal supply current IDDA, ENA=ENB=VDDI, VIN=VDDI (L) / 0 V (H) (5 V)",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.2,
          "max": 6.9,
          "conditions": "ENA = ENB = VDDI; VIN = VDDI (CA-IS3841L); VIN = 0V(CA-IS3841H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "DC-signal supply current IDDB, ENA=ENB=VDDI, VIN=VDDI (L) / 0 V (H) (5 V)",
          "symbol": "IDDB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.5,
          "max": 5.4,
          "conditions": "ENA = ENB = VDDI; VIN = VDDI (CA-IS3841L); VIN = 0V(CA-IS3841H)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "AC-signal supply current IDDA at 1 Mbps (5 V)",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.3,
          "max": 5.2,
          "conditions": "ENA = ENB = VDDI; all channels 50% duty 5 V square wave; CL = 15 pF; 1Mbps (500kHz)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "AC-signal supply current IDDB at 1 Mbps (5 V)",
          "symbol": "IDDB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4.1,
          "max": 6.2,
          "conditions": "ENA = ENB = VDDI; all channels 50% duty 5 V square wave; CL = 15 pF; 1Mbps (500kHz)",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "AC-signal supply current IDDA at 10 Mbps (5 V)",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
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