MCP45HV31-103E

{
  "schema_version": 1,
  "type": "component",
  "slug": "mcp45hv31-103e",
  "title": "MCP45HV31-103E",
  "brief": "Microchip Tech Digital Potentiometers, TSSOP-14. 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",
    "adc-dac-data conversion",
    "mcp45hv31-103e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MCP45HV31-103E",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Digital Potentiometers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/556468123355b07f5b301e0b9dfefe39.pdf",
    "parts": {
      "symbol": "mcp45hv31-103e.kicad_sym",
      "footprint": "mcp45hv31-103e.kicad_mod",
      "model_3d": "mcp45hv31-103e-hero.glb",
      "model_3d_plain": "mcp45hv31-103e-etched.glb",
      "model_3d_step": "mcp45hv31-103e-etched.step",
      "model_3d_step_plain": "mcp45hv31-103e.step",
      "lbr": "mcp45hv31-103e.lbr"
    },
    "distributor_links": {
      "lcsc": "C637113"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T09:25:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VL",
        "type": "power_in",
        "description": "Positive digital power supply input relative to DGND, ranging from 1.8V to 5.5V, with a decoupling capacitor to DGND recommended."
      },
      {
        "number": "2",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input (Schmitt trigger), input-only because the device is an I2C slave."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "input",
        "description": "I2C address bit 1 input (Schmitt trigger); with A0 allows up to four devices on one I2C bus."
      },
      {
        "number": "4",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data input/output (Schmitt trigger) with an open-drain N-channel driver, used to read and write the Wiper and TCON registers."
      },
      {
        "number": "5",
        "name": "A0",
        "type": "input",
        "description": "I2C address bit 0 input (Schmitt trigger), latched at POR/BOR."
      },
      {
        "number": "6",
        "name": "WLAT",
        "type": "input",
        "description": "Wiper latch enable input: 0 transfers the received I2C shift-register value to the Wiper register, 1 holds the received value in the shift register buffer."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected to the die; connect to DGND or VL to reduce noise coupling."
      },
      {
        "number": "8",
        "name": "SHDN",
        "type": "input",
        "description": "Shutdown input (Schmitt trigger) that forces the resistor network terminals into the hardware shutdown state."
      },
      {
        "number": "9",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground reference."
      },
      {
        "number": "10",
        "name": "V-",
        "type": "power_in",
        "description": "Analog negative potential supply, which must be lower than or equal to the DGND potential."
      },
      {
        "number": "11",
        "name": "P0B",
        "type": "passive",
        "description": "Potentiometer 0 Terminal B, the fixed connection to zero-scale wiper value (0x00), with no polarity and voltage between V+ and V-."
      },
      {
        "number": "12",
        "name": "P0W",
        "type": "passive",
        "description": "Potentiometer 0 wiper terminal, with no polarity relative to A or B and voltage between V+ and V-."
      },
      {
        "number": "13",
        "name": "P0A",
        "type": "passive",
        "description": "Potentiometer 0 Terminal A, the fixed connection to full-scale wiper value (0x7F for 7-bit), with no polarity and voltage between V+ and V-."
      },
      {
        "number": "14",
        "name": "V+",
        "type": "power_in",
        "description": "Analog positive supply voltage, which must be at a higher potential than V-, maximum +36V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin table row for VL is printed as '11 VL' (pin 1 for both TSSOP and QFN, merged text); pin 1 assume; Pin types for analog terminals P0A/P0B/P0W chosen as passive (datasheet lists them as analog I/O); S"
        ],
        "pages_sent": 21,
        "cost_usd": 0.165,
        "at": "2026-10-31T09:24:50"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/556468123355b07f5b301e0b9dfefe39.pdf",
        "pages": 100,
        "sha256": "ab854db7c83242c1",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mcp45hv31-103e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp45hv31-103e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4e7aff63a0bf2d0114d1004320e71eb86b96a6b625be0a7c58a4882801376468",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TSSOP-14",
      "Category": "ADC/DAC/Data Conversion",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ab854db7c83242c1f4ddf4f15fa5368692e1be56e3eebf76db1a5eaeff3a7e53",
      "rows": [
        {
          "name": "Resistance RAB (-103)",
          "symbol": "RAB",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 8,
          "typ": 10,
          "max": 12,
          "conditions": "-103 devices, V+/V- = 10V to 36V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Digital supply VL",
          "symbol": "VL",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "With respect to DGND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Digital supply VL (low)",
          "symbol": "VL",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "VL ≥ V- + 2.7V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Analog supply V+",
          "symbol": "V+",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "With respect to V-",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Resistor network supply voltage",
          "symbol": "VRN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "Delta voltage between V+ and V-",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current serial interface active",
          "symbol": "IDDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 45,
          "max": 650,
          "conditions": "Serial Interface Active, VL = 5.5V, FSCL = 3.4 MHz, V- = DGND",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current serial interface inactive",
          "symbol": "IDDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 4,
          "max": 7,
          "conditions": "Serial Interface Inactive, VL = 5.5V, SCL = VIH, Wiper = 0, V- = DGND",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Analog supply current",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Current V+ to V-, PxA = PxB = PxW, DGND = V- +(V+/2)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "RAB current",
          "symbol": "IAB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 4.5,
          "conditions": "-103 devices, V- = -18V, V+ = +18V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Wiper resistance",
          "symbol": "RW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 75,
          "max": 170,
          "conditions": "IW = 1 mA, V+ = +18V, V- = -18V, code = 00h",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Wiper resistance",
          "symbol": "RW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 145,
          "max": 200,
          "conditions": "IW = 1 mA, V+ = +5.0V, V- = -5.0V, code = 00h",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Terminal current",
          "symbol": "IT, IW",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 12.5,
          "conditions": "-103 devices IBW(W ≠ ZS) and IAW(W ≠ FS)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Terminal current at ZS/FS",
          "symbol": "IT, IW",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "IBW(W = ZS), or IAW(W = FS)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Full scale error 10k 7-bit",
          "symbol": "VWFSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": -3.5,
          "typ": null,
          "max": null,
          "conditions": "10 k 7-bit VAB = 10V to 36V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Zero scale error 10k 7-bit VAB 20-36V",
          "symbol": "VWZSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": null,
          "typ": null,
          "max": 2.125,
          "conditions": "10 k 7-bit VAB = 20V to 36V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Zero scale error 10k 7-bit VAB 10-36V",
          "symbol": "VWZSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": null,
          "typ": null,
          "max": 3.25,
          "conditions": "10 k 7-bit VAB = 10V to 36V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer INL 10k 7-bit",
          "symbol": "P-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.5,
          "typ": 0.25,
          "max": 0.5,
          "conditions": "10 k 7-bit VAB = 10V to 36V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer DNL 10k 7-bit",
          "symbol": "P-DNL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.25,
          "typ": 0.1,
          "max": 0.25,
          "conditions": "10 k 7-bit VAB = 10V to 36V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Rheostat INL 10k 7-bit 36V",
          "symbol": "R-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.6,
          "typ": null,
          "max": 0.6,
          "conditions": "10 k 7-bit IW = 3.0 mA, (V+ - V-) = 36V (Note 2)",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Rheostat INL 10k 7-bit 20V",
          "symbol": "R-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.8,
          "typ": null,
          "max": 0.8,
          "conditions": "10 k 7-bit IW = 1.7 mA, (V+ - V-) = 20V (Note 2)",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Rheostat INL 10k 7-bit 10V",
          "symbol": "R-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -1.1,
          "typ": null,
          "max": 1.1,
          "conditions": "10 k 7-bit IW = 830 µA, (V+ - V-) = 10V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Rheostat DNL 10k 7-bit 36V",
          "symbol": "R-DNL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "10 k 7-bit IW = 3.0 mA, (V+ - V-) = 36V (Note 2)",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Rheostat DNL 10k 7-bit 20V",
          "symbol": "R-DNL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "10 k 7-bit IW = 1.7 mA, (V+ - V-) = 20V (Note 2)",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Rheostat DNL 10k 7-bit 10V",
          "symbol": "R-DNL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "10 k 7-bit IW = 830 µA, (V+ - V-) = 10V",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Power supply sensitivity 7-bit",
          "symbol": "PSS",
          "kind": "electrical",
          "unit": "%/%",
          "min": null,
          "typ": 0.0015,
          "max": 0.0035,
          "conditions": "7-bit VL = 2.7V to 5.5V, V+ = 18V, V- = -18V, Code = 3Fh",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN = VL and VIN = DGND",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Schmitt trigger high-input threshold",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 0.7,
          "typ": null,
          "max": null,
          "conditions": "1.8V ≤ VL ≤ 5.5V; min 0.7 VL",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage SDA",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "VL = 5.5V, IOL = 5 mA; max 0.2 VL",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Nominal resistance tempco",
          "symbol": "ΔRAB/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "TA = -40°C to +85°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Nominal resistance tempco",
          "symbol": "ΔRAB/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "TA = -40°C to +125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Ratiometric tempco",
          "symbol": "ΔVBW/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "Code = Mid scale (3Fh)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bandwidth -3 dB 10k 7-bit",
          "symbol": "BW",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 240,
          "max": null,
          "conditions": "10 k 7-bit Code = 3Fh, load = 30 pF",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Settling time 10k",
          "symbol": "tS",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "Code = 00h -> 7Fh; 7Fh -> 00h, CL = 50 pF",
          "source_page": 16,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation 10k",
          "symbol": "PDISS",
          "kind": "electrical",
          "unit": "mW",
          "min": null,
          "typ": 130,
          "max": null,
          "conditions": "VL = 5.5V, V+ = 18V, V- = -18V",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Leakage current into A, W or B",
          "symbol": "ITL",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "A = W = B = V-",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Capacitance PA",
          "symbol": "CA",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "Measured to V-, f =1 MHz, Wiper code = Mid Scale",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Capacitance PW",
          "symbol": "CW",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "Measured to V-, f =1 MHz, Wiper code = Mid Scale",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Capacitance PB",
          "symbol": "CB",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "Measured to V-, f =1 MHz, Wiper code = Mid Scale",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 21,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance TSSOP-14",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "14L-TSSOP (ST)",
          "source_page": 21,
          "source": "datasheet"
        },
        {
          "name": "V+ with respect to DGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "DGND - 0.3V to 40.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VL with respect to DGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Digital pins with respect to DGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": null,
          "conditions": "SCL, SDA, A0, A1, WLAT, SHDN: -0.6V to VL + 0.6V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Continuous current into PxA/PxW/PxB",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -12.5,
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