SK4554D8-435

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  "slug": "sk4554d8-435",
  "title": "SK4554D8-435",
  "brief": "Suntek Battery Management ICs, DFN-8(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "SK4554D8-435",
    "manufacturer": "Suntek",
    "package": "DFN-8(2x2)",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c5f40f9530e215cd0e4f8dc5dc4ecfcd.pdf",
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      "lcsc": "C5120310"
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      "checked_at": "2026-10-22T20:08:06Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
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      "mouser": {
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    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input (absolute maximum -0.3 to 27V, operating 4.55 to 6.10V, charging disabled above the ~6.8V OVP threshold) that wants a 1µF or larger X5R ceramic decoupling capacitor close to the pin."
      },
      {
        "number": "2",
        "name": "PPR",
        "type": "output",
        "description": "Open-drain power-presence indication, active low when VIN is above POR and below OVP, sinks 15mA (MIN) to drive an LED, maximum pin voltage 5.5V, independent of the EN input."
      },
      {
        "number": "3",
        "name": "CHG",
        "type": "output",
        "description": "Open-drain charge indication that goes low when a charge cycle starts and high impedance when full-of-charge is qualified or the charger is disabled, sinks 15mA (MIN) to drive an LED."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Enable input, drive high to disable the charger, low or floating enables it, with an internal 200kΩ pull-down resistor."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "System ground."
      },
      {
        "number": "6",
        "name": "IMIN",
        "type": "passive",
        "description": "Full-of-charge current programming pin, a resistor RIMIN to GND sets IMIN = 9700/RIMIN + 4 (mA) with RIMIN in kΩ, programmable range 5mA to 120mA."
      },
      {
        "number": "7",
        "name": "IREF",
        "type": "passive",
        "description": "Charge-current programming and monitoring pin, a resistor RIREF to GND sets IREF = 12000/RIREF (mA) with RIREF in kΩ, and its voltage monitors the actual charge current (VIREF = 0V when disabled)."
      },
      {
        "number": "8",
        "name": "BAT",
        "type": "power_out",
        "description": "Charger output pin connected to the battery, with a 1µF or larger X5R ceramic capacitor recommended, output disabled when EN is high."
      }
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        "at": "2026-10-22T20:07:15"
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      "Package": "DFN-8(2x2)",
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      "Pins": "8"
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          "name": "Shutdown Mode VIN Pin Current",
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