FM5324GA

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  "type": "component",
  "slug": "fm5324ga",
  "title": "FM5324GA",
  "brief": "Shenzhen Fuman Battery Management ICs, ESOP-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": [
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    "power supply chip",
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  "component": {
    "mpn": "FM5324GA",
    "manufacturer": "Shenzhen Fuman",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Supply Chip",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d74372dbddb9e9cb54ccc5c4f4443551.pdf",
    "parts": {
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    "distributor_links": {
      "lcsc": "C5156105"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:23:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Power input pin; recommended input voltage 4.5~5.5V, absolute maximum -0.3~6V, input OVP at 6.0V."
      },
      {
        "number": "2",
        "name": "L1",
        "type": "output",
        "description": "LED battery-level indicator pin (L1-L3 group), output current 4/5/6 mA (min/typ/max)."
      },
      {
        "number": "3",
        "name": "L2",
        "type": "output",
        "description": "LED battery-level indicator pin (L1-L3 group), output current 4/5/6 mA (min/typ/max)."
      },
      {
        "number": "4",
        "name": "L3",
        "type": "output",
        "description": "LED battery-level indicator pin (L1-L3 group), output current 4/5/6 mA (min/typ/max)."
      },
      {
        "number": "5",
        "name": "TAPW",
        "type": "bidirectional",
        "description": "Key (button) pin that also controls the flashlight (WLED); with RKEY1=10kΩ short press starts boost, long press toggles flashlight, flashlight drive 22 mA at VBAT=4.0V."
      },
      {
        "number": "6",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery positive sense pin that supplies about 100 mA trickle charge current to the battery."
      },
      {
        "number": "7",
        "name": "SW",
        "type": "passive",
        "description": "Inductor drive pin, power switch drain; recommended inductor 1.5uH."
      },
      {
        "number": "8",
        "name": "OUT",
        "type": "power_out",
        "description": "Chip output pin, source of the power P-MOS; boost output of 5V with overcurrent protection at 3.0A typ."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
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        "guards": "pin_guards 0.1: passed",
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          "extractor flagged: Datasheet text gives only the package name eSOP8L (hint ESOP-8); the exposed pad is labelled EP/PGND; Pin-diagram figure is not present in the extracted text; pin order relies on the pin table only. The",
          "1/9 pin names appear NOWHERE in the datasheet text: ['3:L2@p2']"
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        "cost_usd": 0.0927,
        "at": "2026-10-22T21:23:03"
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        "described": 9,
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    "specs": {
      "Manufacturer": "Shenzhen Fuman",
      "Package": "ESOP-8",
      "Category": "Power Supply Chip",
      "Pins": "9"
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          "symbol": "TOP",
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          "unit": "℃",
          "min": -40,
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        {
          "name": "Operating junction temperature range",
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        {
          "name": "Storage temperature",
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          "min": -55,
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          "max": 150,
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        {
          "name": "Lead soldering temperature",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "10 sec",
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        {
          "name": "Recommended input voltage",
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        {
          "name": "Recommended operating ambient temperature",
          "symbol": "TOP",
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          "min": 0,
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        {
          "name": "Standby current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "uA",
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          "max": 75,
          "conditions": "VBAT =4.2V",
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        },
        {
          "name": "Float threshold voltage",
          "symbol": "VBAT-REG",
          "kind": "electrical",
          "unit": "V",
          "min": 4.16,
          "typ": 4.2,
          "max": 4.24,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Output overload protection time",
          "symbol": "TOCP-OFF",
          "kind": "timing",
          "unit": "mS",
          "min": 12,
          "typ": 14,
          "max": 16,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output short-circuit current detection time",
          "symbol": "TLOAD-STP",
          "kind": "timing",
          "unit": "uS",
          "min": 56,
          "typ": 60,
          "max": 64,
          "conditions": "",
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        },
        {
          "name": "LED port output current",
          "symbol": "ILED",
          "kind": "electrical",
          "unit": "mA",
          "min": 4,
          "typ": 5,
          "max": 6,
          "conditions": "L1-L3",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "LED flash frequency when charging",
          "symbol": "FLED-CHG",
          "kind": "electrical",
          "unit": "Hz",
          "min": 0.9,
          "typ": 1,
          "max": 1.1,
          "conditions": "单灯闪烁方式",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "LED flash frequency, low battery",
          "symbol": "FLED-LOWB",
          "kind": "electrical",
          "unit": "Hz",
          "min": 1.8,
          "typ": 2,
          "max": 2.2,
          "conditions": "",
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        },
        {
          "name": "Manual key short-press time",
          "symbol": "TTAPSHORT",
          "kind": "timing",
          "unit": "mS",
          "min": 24,
          "typ": 28,
          "max": 32,
          "conditions": "",
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        {
          "name": "Manual key long-press time",
          "symbol": "TTAPLONG",
          "kind": "timing",
          "unit": "S",
          "min": 1.5,
          "typ": 1.75,
          "max": 2,
          "conditions": "",
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        },
        {
          "name": "Input reverse blocking switch Rdson",
          "symbol": "RON-IRB",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 75,
          "max": null,
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          "name": "Top switch Rdson",
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          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
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          "max": null,
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        {
          "name": "Bottom switch Rdson",
          "symbol": "RON-BS",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 35,
          "max": null,
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        },
        {
          "name": "Operating current, charging",
          "symbol": "ICC-CHG",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4,
          "max": null,
          "conditions": "VIN =5V 充电状态",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Undervoltage threshold rising",
          "symbol": "VUVLO-RS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.2,
          "max": null,
          "conditions": "VIN从低到高",
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        {
          "name": "Undervoltage threshold falling",
          "symbol": "VUVLO-DN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.5,
          "max": null,
          "conditions": "VIN从高到低",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Trickle to constant-current threshold",
          "symbol": "VTRKL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "VBAT 从低到高",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Charge termination current",
          "symbol": "IFULL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 300,
          "max": null,
          "conditions": "VIN=5.0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Recharge threshold rising",
          "symbol": "VRECHG",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.05,
          "max": null,
          "conditions": "VBAT rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Recharge threshold falling",
          "symbol": "VRECHG",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4,
          "max": null,
          "conditions": "VBAT falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input constant-current charge current",
          "symbol": "IVIN-CHG",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "VIN=5.0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Trickle charge current",
          "symbol": "ITRKL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 270,
          "max": null,
          "conditions": "VBAT=2.8V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input overvoltage protection voltage",
          "symbol": "VIN-OVP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 6,
          "max": null,
          "conditions": "输入电压升高",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating current, boost",
          "symbol": "ICC-BST",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.8,
          "max": null,
          "conditions": "放电状态： VBAT=4.2V ，ILOAD=0，指示灯熄灭",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "No-load output voltage",
          "symbol": "VOUT-NL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5.1,
          "max": null,
          "conditions": "IOUT=0",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Output overcurrent protection current",
          "symbol": "ILOAD-OCP",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "",
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        {
          "name": "Oscillator frequency",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": 1000,
          "max": null,
          "conditions": "",
          "source_page": 6,
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        },
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          "name": "Switching frequency",
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          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "",
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          "name": "Shutdown voltage on discharge",
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          "typ": 2.9,
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          "min": null,
          "typ": 95,
          "max": null,
          "conditions": "",
          "source_page": 6,
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          "name": "Chip over-temperature protection",
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          "unit": "℃",
          "min": null,
          "typ": 135,
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