INK1101ST

{
  "schema_version": 1,
  "type": "component",
  "slug": "ink1101st",
  "title": "INK1101ST",
  "brief": "Cross chip LED Drivers, SOT-23-5. 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",
    "display modules - led drivers - display drivers",
    "ink1101st",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "INK1101ST",
    "manufacturer": "Cross chip",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Display Modules / LED Drivers / Display Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b147ea38e43f5e659182ff2a6bc7ba34.pdf",
    "parts": {
      "symbol": "ink1101st.kicad_sym",
      "footprint": "ink1101st.kicad_mod",
      "model_3d": "ink1101st-hero.glb",
      "model_3d_plain": "ink1101st-etched.glb",
      "model_3d_step": "ink1101st-etched.step",
      "model_3d_step_plain": "ink1101st.step",
      "lbr": "ink1101st.lbr"
    },
    "distributor_links": {
      "lcsc": "C2840169"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:05:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VFB",
        "type": "input",
        "description": "LED current programming pin with 0.3V reference voltage; connect RFB between VFB and GND to set ILED=VFB/RFB."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "3",
        "name": "DIM",
        "type": "input",
        "description": "PWM dimming control with built-in 20kΩ pull-up; high turns the driver on, low turns it off, and it can float or connect to VCC when unused (minimum pulse width 1.5µs)."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "IC power supply, 3.3 to 5.7V without a current limiting resistor, with an internal 5.5V shunt regulator."
      },
      {
        "number": "5",
        "name": "DRV",
        "type": "passive",
        "description": "LED current sink (high-voltage output), rated -0.3 to 32V with up to 120mA continuous output current."
      }
    ],
    "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: DRV is the LED current sink (open-drain-like output); typed as passive since the datasheet doesn't s"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0467,
        "at": "2026-10-22T22:05:00"
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        "pages": 8,
        "sha256": "7182ca99f90e30cc",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
          1.55
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "sha256": "ddd24f6f93e650d7bb0a107c1dd8829c50e023f2f7de72169638eef6701e2a22",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Cross chip",
      "Package": "SOT-23-5",
      "Category": "Display Modules / LED Drivers / Display Drivers",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7182ca99f90e30cc648e03aadcfc294a04cb1cf6b0f75cfa638f9dd3b4cb4839",
      "rows": [
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          "name": "Chip power supply",
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          "kind": "electrical",
          "unit": "V",
          "min": 3.3,
          "typ": null,
          "max": 5.7,
          "conditions": "Without current limiting resistor",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Shunt Regulator VCC",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 5.3,
          "typ": 5.5,
          "max": 5.7,
          "conditions": "R1=5K",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Chip Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 300,
          "max": 600,
          "conditions": "DIM none connection, VCC=5V, RFB=5Ω, VDRV=2V",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "DIM logic level high",
          "symbol": "VDIMH",
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          "typ": null,
          "max": null,
          "conditions": "0.7VCC min",
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        {
          "name": "DIM logic level low",
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          "max": 0.3,
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        },
        {
          "name": "Output current high",
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          "kind": "electrical",
          "unit": "mA",
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          "typ": 60,
          "max": 63,
          "conditions": "RFB=5Ω, DIM floating, VDRV=6V",
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        {
          "name": "Output current low",
          "symbol": "IOUTL",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "RFB=5Ω, DIM grounded, VDRV=6V",
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          "source": "datasheet"
        },
        {
          "name": "Output Saturation voltage",
          "symbol": "VSAT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": 0.3,
          "conditions": "IOUT=120mA",
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        },
        {
          "name": "Current Set Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "mV",
          "min": 285,
          "typ": 300,
          "max": 315,
          "conditions": "VDRV=2V, RFB=5Ω",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "%/dVCC",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.1,
          "max": 0.3,
          "conditions": "RFB=5Ω, VDRV=2V, VCC=3.3~5.5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "%/dVDRV",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.1,
          "max": 0.3,
          "conditions": "RFB=5Ω, DIM floating, VDRV=0.4~5V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Delay time low to high",
          "symbol": "tpLH",
          "kind": "timing",
          "unit": "uS",
          "min": 0.2,
          "typ": 0.5,
          "max": 1,
          "conditions": "VCC=5V; VDRV=2V; RFB=5Ω",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Delay time high to low",
          "symbol": "tpHL",
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          "unit": "uS",
          "min": 0.05,
          "typ": 0.1,
          "max": 0.2,
          "conditions": "VCC=5V; VDRV=2V; RFB=5Ω",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DIM pulse width",
          "symbol": "tW(OE)",
          "kind": "timing",
          "unit": "uS",
          "min": 1.5,
          "typ": null,
          "max": null,
          "conditions": "VCC=5V; VDRV=2V; RFB=5Ω",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output current raising time",
          "symbol": "tR",
          "kind": "timing",
          "unit": "uS",
          "min": 0.1,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "VCC=5V; VDRV=2V; RFB=5Ω",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output current falling time",
          "symbol": "tF",
          "kind": "timing",
          "unit": "uS",
          "min": 0.1,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "VCC=5V; VDRV=2V; RFB=5Ω",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VCC",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.8,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DIM Voltage",
          "symbol": "VDIM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.8,
          "conditions": "-0.3 to VCC+0.3 V (max shown at VCC=5.5V not printed; printed as VCC+0.3)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VFB Voltage",
          "symbol": "VFB",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
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        },
        {
          "name": "DRV Voltage",
          "symbol": "VDRV",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 32,
          "conditions": "ILED=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous Output Current",
          "symbol": "IOUTC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "VDRV=1V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operation Ambient Temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operation Junction Temperature",
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          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Storage Temperature",
          "symbol": "TS",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "ESD (HBM)",
          "symbol": "ESD(HBM)",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6000,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance",
          "symbol": "Rth(j-a)2",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 187.5,
          "max": null,
          "conditions": "Labelled SOT89-5 in table",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "OTP temperature",
          "symbol": "TOTP",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "Guaranteed by design, not tested",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "OTP release temp.",
          "symbol": "TOTPR",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
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          "max": null,
          "conditions": "Guaranteed by design, not tested",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
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  "sections": [
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    "info"
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "INK1101ST (Cross chip) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}