UC2843AQD8RQ1

{
  "slug": "uc2843aqd8rq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "power management (pmic)",
    "uc2843aqd8rq1",
    "factory-2.0.0",
    "extractor-text"
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    "uc2843aqd8rq1.lbr",
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    "docs/uc2843aqd8rq1-datasheet.pdf",
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    "uc2843aqd8rq1-hero.overlay.json",
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  "component": {
    "mpn": "UC2843AQD8RQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/uc2843a-q1",
    "parts": {
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      "lbr": "uc2843aqd8rq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C544622",
      "digikey": "296-24809-2-ND",
      "mouser": "595-UC2843AQD8RQ1"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T09:03:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-24809-2-ND",
        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": "595-UC2843AQD8RQ1",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Low-impedance 1-MHz internal error amplifier output, also the input to the peak current limit/PWM comparator, with 90 dB open-loop gain; it can sink a maximum of 6 mA and is not internally current limited."
      },
      {
        "number": "2",
        "name": "FB",
        "type": "input",
        "description": "Input to the error amplifier, used to control the power converter voltage-feedback loop for stability."
      },
      {
        "number": "3",
        "name": "ISENSE",
        "type": "input",
        "description": "Input to the peak current limit and PWM comparator, where the maximum peak current sense signal is internally clamped to 1 V."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "input",
        "description": "Input to the internal oscillator programmed by timing resistor RT and timing capacitor CT; TI recommends CT from 470 pF to 4.7 nF and RT from 5 kΩ to 100 kΩ."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Controller signal ground."
      },
      {
        "number": "6",
        "name": "OUTPUT",
        "type": "output",
        "description": "Output of the 1-A totem-pole gate driver that can source and sink up to 1 A, and a gate driver resistor must be used to limit gate driver current."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Bias input to the gate driver, which must have a bias capacitor at least 10 times greater than the gate capacitance of the main switching FET."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "Reference voltage output that must supply no more than 10 mA under normal operation, is short-circuit protected at roughly 100 mA, and needs a 1-µF high-frequency bypass capacitor (VCC capacitor at least 10 times the VREF capacitor)."
      }
    ],
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet pin table classifies VCC and VREF as 'I' and 'O'. They were mapped to KiCad power_in a; Pin descriptions were condensed to one sentence each from the Pin Functions table (page 3). Limits q"
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        "cost_usd": 0.0804,
        "at": "2026-10-20T09:02:48"
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        "pages": 24,
        "sha256": "6dc2b496157a1c02",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "checked": "2026-10-20",
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}