GN4054B

{
  "schema_version": 1,
  "type": "component",
  "slug": "gn4054b",
  "title": "GN4054B",
  "brief": "GN Semic Battery Management, SOT23-5. 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",
    "power management (pmic)",
    "gn4054b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "GN4054B",
    "manufacturer": "GN Semic",
    "package": "SOT23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602845563306467328",
    "parts": {
      "symbol": "gn4054b.kicad_sym",
      "footprint": "gn4054b.kicad_mod",
      "model_3d": "gn4054b-hero.glb",
      "model_3d_plain": "gn4054b-etched.glb",
      "model_3d_step": "gn4054b-etched.step",
      "model_3d_step_plain": "gn4054b.step",
      "lbr": "gn4054b.lbr"
    },
    "distributor_links": {
      "lcsc": "C7502477"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T11:04:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge status output that an internal N-channel MOSFET pulls low during charging, turns off when the charge cycle ends, and forces to high impedance when undervoltage lockout is detected."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Charge current output to the battery that regulates the final float voltage to 4.2 V through a precision internal resistor divider, which is disconnected in shutdown mode."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive input supply that powers the charger, stated as 4.3 V to 6 V in the pin description and to be bypassed with a 0.1 to 1 uF capacitor, with the device entering shutdown and battery drain falling below 2 uA when VCC drops to within 30 mV of the BAT pin voltage."
      },
      {
        "number": "5",
        "name": "PROG",
        "type": "passive",
        "description": "Charge current set, monitor, and shutdown pin where a 1% resistor to GND sets the charge current via Ibat = 1000/Rprog, the pin is held at 1 V in constant-current mode, and pulling it above the 1 V shutdown threshold stops charging."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives the SOT23-5 pin table (page 2) but no pin-out diagram or top-view drawing; pin n; VCC operating range conflicts within the datasheet: the pin description says 4.3 V to 6 V, while the; Pin types are inferred: CHRG is an open-drain output (KiCad output used), BAT is treated as power_ou"
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        "cost_usd": 0.033,
        "at": "2026-10-18T11:01:58"
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        "sha256": "e6c9bffbcec538f4",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
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        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "GN Semic",
      "Package": "SOT23-5",
      "Category": "Power Management (PMIC)",
      "Pins": "5"
    },
    "characteristics": {
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          "symbol": "VCC",
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          "unit": "V",
          "min": 4.5,
          "typ": 5,
          "max": 6,
          "conditions": "输入电源电压",
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        {
          "name": "输入电源电流 charge mode",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 160,
          "max": 500,
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          "symbol": "ICC",
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        {
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          "name": "BAT 引脚电流 shutdown (RPROG not connected)",
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          "name": "涓流充电门限电压 (trickle threshold)",
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          "min": 2.7,
          "typ": 2.85,
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          "conditions": "RPROG=10K，Vbat 上升",
          "source_page": 4,
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        {
          "name": "涓流充电迟滞电压 (trickle hysteresis)",
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          "kind": "electrical",
          "unit": "mV",
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          "typ": 150,
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          "conditions": "RPROG=10K",
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        {
          "name": "VCC 欠压闭锁门限 (UVLO threshold)",
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          "kind": "electrical",
          "unit": "V",
          "min": 3.7,
          "typ": 3.8,
          "max": 3.99,
          "conditions": "从 VCC 低至高",
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          "name": "VCC 欠压闭锁迟滞 (UVLO hysteresis)",
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          "conditions": "",
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        {
          "name": "手动停机门限电压 (manual shutdown threshold, rising)",
          "symbol": "VMSD",
          "kind": "electrical",
          "unit": "V",
          "min": 0.96,
          "typ": 1.05,
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        {
          "name": "手动停机门限电压 (manual shutdown threshold, falling)",
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          "min": 0.9,
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          "name": "闭锁门限电压 (ASD threshold, VCC low to high)",
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          "kind": "electrical",
          "unit": "mV",
          "min": 70,
          "typ": 120,
          "max": 180,
          "conditions": "VCC 从低到高",
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          "name": "闭锁门限电压 (ASD threshold, VCC high to low)",
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          "kind": "electrical",
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          "typ": 40,
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        {
          "name": "C/10 终止电流门限 (termination current)",
          "symbol": "ITERM",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.085,
          "typ": 0.1,
          "max": 0.115,
          "conditions": "RPROG=10K",
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          "name": "PROG 引脚电压 (PROG pin voltage)",
          "symbol": "VPROG",
          "kind": "electrical",
          "unit": "V",
          "min": 0.9,
          "typ": 1,
          "max": 1.08,
          "conditions": "RPROG=10K，电流模式",
          "source_page": 4,
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        {
          "name": "引脚输出低电压 (CHRG output low voltage)",
          "symbol": "VCHRG",
          "kind": "electrical",
          "unit": "V",
          "min": 0.1,
          "typ": 0.35,
          "max": 0.6,
          "conditions": "ICHRG=5mA",
          "source_page": 4,
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        {
          "name": "再充电电池门限电压 (recharge threshold)",
          "symbol": "ΔVRECHRG",
          "kind": "electrical",
          "unit": "mV",
          "min": 100,
          "typ": 120,
          "max": 200,
          "conditions": "VFLOAT-VRECHRG",
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        {
          "name": "限定温度模式中的结温 (junction temperature limit)",
          "symbol": "TLIM",
          "kind": "electrical",
          "unit": "℃",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "功率 FET 导通电阻 (power FET on-resistance)",
          "symbol": "RON",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 1700,
          "max": null,
          "conditions": "",
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        {
          "name": "软启动时间 (soft-start time)",
          "symbol": "Tss",
          "kind": "electrical",
          "unit": "us",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "IBAT=0 至 Ibat=1000/Rprog",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "再充电比较器滤波时间 (recharge comparator filter time)",
          "symbol": "tRECHARGE",
          "kind": "electrical",
          "unit": "ms",
          "min": 0.75,
          "typ": 2,
          "max": 4,
          "conditions": "VBAT 高至低",
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        {
          "name": "终止比较器滤波时间 (termination comparator filter time)",
          "symbol": "tTERM",
          "kind": "electrical",
          "unit": "ms",
          "min": 0.8,
          "typ": 1.8,
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          "conditions": "IBAT 降至 Ichg/10 以下",
          "source_page": 4,
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          "name": "PROG 引脚上拉电流 (PROG pull-up current)",
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          "kind": "electrical",
          "unit": "uA",
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          "typ": 3,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "输入电源电压 (input supply voltage, absolute maximum table)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 4.5,
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          "max": 6,
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          "source_page": 3,
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          "name": "PROG pin voltage",
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          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "上限为 VCC+0.3V",
          "source_page": 3,
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          "name": "BAT pin voltage",
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          "name": "CHRG pin voltage",
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          "name": "BAT pin current",
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          "name": "PROG pin current",
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          "name": "最大结温 (maximum junction temperature)",
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          "min": null,
          "typ": null,
          "max": 145,
          "conditions": "",
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          "name": "工作环境温度范围 (operating ambient temperature)",
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          "kind": "recommended_operating",
          "unit": "℃",
          "min": -20,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
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        {
          "name": "贮存温度范围 (storage temperature)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "引脚温度 (lead temperature, soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "焊接时间 10s",
          "source_page": 3,
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        },
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          "name": "VCC 工作电压范围 (VCC range)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.3,
          "typ": null,
          "max": 6,
          "conditions": "VCC 的变化范围",
          "source_page": 2,
          "source": "datasheet"
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