UC2842BN

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  "type": "component",
  "slug": "uc2842bn",
  "title": "UC2842BN",
  "brief": "lingxingic AC-DC Controllers And Regulators, DIP-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)",
    "uc2842bn",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UC2842BN",
    "manufacturer": "lingxingic",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603344870128447488",
    "parts": {
      "symbol": "uc2842bn.kicad_sym",
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    "distributor_links": {
      "lcsc": "C22390253",
      "digikey": "497-7691-5-ND",
      "mouser": "511-UC2842BN"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T14:53:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "found",
        "lifecycle": "Active"
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        "pn": "511-UC2842BN",
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    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output (comparison terminal) that sets the control voltage; the datasheet's absolute maximum error-amplifier output sink current is 10 mA."
      },
      {
        "number": "2",
        "name": "VFB",
        "type": "input",
        "description": "Error amplifier inverting input (negative feedback); the analog input range is -0.3 V to +6.3 V and the input bias current is -2 µA maximum at VFB = 5 V."
      },
      {
        "number": "3",
        "name": "ISENSE",
        "type": "input",
        "description": "Current-sense input to the PWM current-sense comparator, with a maximum input signal of 1 V typical (0.9 V to 1.1 V) and input bias current of -10 µA maximum."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "Oscillator timing node for the RT/CT network; the datasheet's test condition is RT = 10 kΩ and CT = 3.3 nF, with a discharge current of 7.6 mA to 9 mA at VOSC = 2 V."
      },
      {
        "number": "5",
        "name": "GROUND",
        "type": "power_in",
        "description": "Ground reference for the controller, as shown on the pinout."
      },
      {
        "number": "6",
        "name": "OUTPUT",
        "type": "output",
        "description": "Push-pull gate-drive output capable of sourcing and sinking large currents for driving MOSFETs, with an output current rating of ±1 A."
      },
      {
        "number": "7",
        "name": "Vi",
        "type": "power_in",
        "description": "Supply voltage input with an absolute maximum of 30 V from a low-impedance source, and a minimum operating voltage set by the UVLO thresholds (16 V on / 10 V off for UC2842)."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "5.00 V reference output (4.90 V to 5.10 V at Io = 1 mA) with a short-circuit current of -30 mA to -180 mA."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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          "1/8 pin names appear NOWHERE in the datasheet text: ['5:GROUND@p5']"
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        "at": "2026-10-15T14:53:09"
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        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "lingxingic",
      "Package": "DIP-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
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          "symbol": "ISC",
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          "typ": -100,
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          "max": 55,
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          "typ": 250,
          "max": 275,
          "conditions": "Tj=25℃ (RT=6.2kΩ，CT=1nF)",
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          "name": "Frequency voltage stability",
          "symbol": "ΔfOSC/ΔV",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": 1,
          "conditions": "Vi=12V～25V",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Oscillator discharge current",
          "symbol": "Idischg",
          "kind": "electrical",
          "unit": "mA",
          "min": 7.6,
          "typ": 8.3,
          "max": 9,
          "conditions": "VOSC=2V; Tj=25℃，Tamb=-40～105℃",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Error amplifier input voltage",
          "symbol": "V2",
          "kind": "electrical",
          "unit": "V",
          "min": 2.42,
          "typ": 2.5,
          "max": 2.58,
          "conditions": "VPIN1=2.5V",
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          "source": "datasheet"
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        {
          "name": "Error amplifier input bias current",
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          "kind": "electrical",
          "unit": "uA",
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          "typ": -0.1,
          "max": -2,
          "conditions": "VFB=5V",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Open-loop voltage gain",
          "symbol": "AVOL",
          "kind": "electrical",
          "unit": "dB",
          "min": 65,
          "typ": 90,
          "max": null,
          "conditions": "2V≤Vo≤4V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Unity-gain bandwidth",
          "symbol": "BW",
          "kind": "electrical",
          "unit": "MHz",
          "min": 0.7,
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          "max": null,
          "conditions": "Tj=25℃ (注 4)",
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          "source": "datasheet"
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        {
          "name": "Power supply rejection ratio (error amp)",
          "symbol": "PSRR",
          "kind": "electrical",
          "unit": "dB",
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          "typ": 70,
          "max": null,
          "conditions": "12V≤Vi≤25V",
          "source_page": 6,
          "source": "datasheet"
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          "name": "Output sink current",
          "symbol": "IO",
          "kind": "electrical",
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          "name": "Output source current",
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          "kind": "electrical",
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          "typ": -1,
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          "conditions": "VPIN2=2.3V，VPIN1=5V",
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          "name": "Output high level (VOUT High)",
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          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": 6.2,
          "max": null,
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          "max": 1.1,
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          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Current sense gain",
          "symbol": "GV",
          "kind": "electrical",
          "unit": "V/V",
          "min": 2.85,
          "typ": 3,
          "max": 3.15,
          "conditions": "注 5、6",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Maximum input signal",
          "symbol": "V3",
          "kind": "electrical",
          "unit": "V",
          "min": 0.9,
          "typ": 1,
          "max": 1.1,
          "conditions": "VPIN1=5V（注 5）",
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          "source": "datasheet"
        },
        {
          "name": "Current sense power supply rejection ratio",
          "symbol": "SVR",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
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          "max": 70,
          "conditions": "12V≤Vi≤25V（注 5）",
          "source_page": 6,
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        {
          "name": "Current sense input bias current",
          "symbol": "Ib",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": -2,
          "max": -10,
          "conditions": "",
          "source_page": 6,
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        {
          "name": "Propagation delay",
          "symbol": "",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "max": 300,
          "conditions": "注 4",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Output low level (VOL)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": 0.4,
          "conditions": "Isink=20mA",
          "source_page": 6,
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        {
          "name": "Output low level (VOL)",
          "symbol": "VOL",
          "kind": "electrical",
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          "min": null,
          "typ": 1.6,
          "max": 2.2,
          "conditions": "Isink=200mA",
          "source_page": 6,
          "source": "datasheet"
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          "name": "Output high level (VOH)",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 13,
          "typ": 13.5,
          "max": null,
          "conditions": "Isource=20mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output high level (VOH)",
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          "min": 12,
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          "source": "datasheet"
        },
        {
          "name": "UVLO saturation voltage (VOLS)",
          "symbol": "VOLS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.1,
          "max": 1.1,
          "conditions": "Vi=6V，ISINK=1mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output rise time",
          "symbol": "tr",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 50,
          "max": 150,
          "conditions": "CL=1nF（注 4）",
          "source_page": 6,
          "source": "datasheet"
        },
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          "name": "Output fall time",
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          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 50,
          "max": 150,
          "conditions": "CL=1nF（注 4）",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "UVLO turn-on threshold (UC2842)",
          "symbol": "VTH(ST)",
          "kind": "electrical",
          "unit": "V",
          "min": 14.5,
          "typ": 16,
          "max": 17.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "UVLO minimum operating voltage (UC2842)",
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          "typ": 10,
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          "name": "Maximum duty cycle (UC2842)",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": 95,
          "typ": 97,
          "max": 100,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
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          "name": "Minimum duty cycle",
          "symbol": "",
          "kind": "electrical",
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          "max": 0.9,
          "conditions": "",
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          "kind": "electrical",
          "unit": "mA",
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          "typ": 12,
          "max": 20,
          "conditions": "VPIN2=VPIN3=0V",
          "source_page": 6,
          "source": "datasheet"
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          "name": "Zener voltage",
          "symbol": "Viz",
          "kind": "electrical",
          "unit": "V",
          "min": 30,
          "typ": 36,
          "max": null,
          "conditions": "Ii=25mA",
          "source_page": 6,
          "source": "datasheet"
        }
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