FH9261-DBE

{
  "schema_version": 1,
  "type": "component",
  "slug": "fh9261-dbe",
  "title": "FH9261-DBE",
  "brief": "XIN FEI HONG Battery Management, SOT-23-6. 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)",
    "fh9261-dbe",
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  "component": {
    "mpn": "FH9261-DBE",
    "manufacturer": "XIN FEI HONG",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602964886188683264",
    "parts": {
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      "lbr": "fh9261-dbe.lbr"
    },
    "distributor_links": {
      "lcsc": "C19273257"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T02:14:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
        "status": "no match"
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    },
    "pins": [
      {
        "number": "1",
        "name": "DO",
        "type": "output",
        "description": "Discharge-control MOSFET gate drive output that goes low to turn the discharge MOSFET off on over-discharge, discharge over-current or load short; its output voltage is limited to VSS-0.3 V to VDD+0.3 V (absolute maximum)."
      },
      {
        "number": "2",
        "name": "VM",
        "type": "input",
        "description": "Current-sense and charger-detection terminal, monitored against VSS for charge and discharge over-current and short-circuit thresholds; its voltage is limited to VDD-28 V to VDD+0.3 V (absolute maximum)."
      },
      {
        "number": "3",
        "name": "CO",
        "type": "output",
        "description": "Charge-control MOSFET gate drive output that goes low to turn the charge MOSFET off on over-charge or charge over-current; its output voltage is limited to VVM-0.3 V to VDD+0.3 V (absolute maximum)."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No-connection pin; the datasheet gives no electrical function or limits for it."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply input for the single-cell Li-ion/Li-polymer protection IC, with an operating supply range of VDD-VSS = -1.0 V to 7.0 V and an absolute maximum of VSS-0.3 V to VSS+8.0 V."
      },
      {
        "number": "6",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground/reference pin for the protection IC, to which the battery negative terminal and the VM and DO thresholds are referenced."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pinout is taken from the Table 1 pin description on page 2 and cross-checked against the package mar; Pin 4 is labelled NC in the datasheet with no further function, so it is marked unconnected.; Pin 2 (VM) is typed as input because the datasheet describes it as the terminal the IC monitors for "
        ],
        "pages_sent": 9,
        "cost_usd": 0.016,
        "at": "2026-10-17T02:12:13"
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      "datasheet": {
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        "pages": 9,
        "sha256": "2ca4dfa1693cca6e",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "XIN FEI HONG",
      "Package": "SOT-23-6",
      "Category": "Power Management (PMIC)",
      "Pins": "6"
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    "characteristics": {
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          "name": "芯片电源电压 (supply voltage VDD-VSS)",
          "symbol": "VDD",
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          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 7,
          "conditions": "",
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          "name": "正常工作电流 (normal operating current)",
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          "unit": "μA",
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          "conditions": "VDD=3.5V",
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        {
          "name": "休眠时消耗电流 (power-down current)",
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        {
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          "kind": "electrical",
          "unit": "V",
          "min": 4.375,
          "typ": 4.425,
          "max": 4.475,
          "conditions": "VDD =3.5→4.8V",
          "source_page": 4,
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        {
          "name": "过充电解除电压 (overcharge release voltage)",
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          "min": 4.125,
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          "name": "过充电保护解除延时 (overcharge release delay)",
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        {
          "name": "过放电保护电压 (overdischarge detection voltage)",
          "symbol": "VOD",
          "kind": "electrical",
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          "min": 2.9,
          "typ": 3,
          "max": 3.1,
          "conditions": "VDD=3.5→2.0V",
          "source_page": 4,
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        },
        {
          "name": "过放电解除电压 (overdischarge release voltage)",
          "symbol": "VODR",
          "kind": "electrical",
          "unit": "V",
          "min": 2.9,
          "typ": 3,
          "max": 3.1,
          "conditions": "VDD =2.0→3.5V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "过放电保护延时 (overdischarge detection delay)",
          "symbol": "TOD",
          "kind": "electrical",
          "unit": "ms",
          "min": 89.6,
          "typ": 128,
          "max": 166.4,
          "conditions": "VDD =3.5→2.0V",
          "source_page": 4,
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          "name": "过放电保护解除延时 (overdischarge release delay)",
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          "kind": "electrical",
          "unit": "ms",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "VDD =2.0→3.5V",
          "source_page": 4,
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        },
        {
          "name": "放电过流保护电压 (discharge overcurrent detection voltage)",
          "symbol": "VEC",
          "kind": "electrical",
          "unit": "mV",
          "min": 35,
          "typ": 50,
          "max": 65,
          "conditions": "VM-VSS=0→0.20V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "放电过流保护延时 (discharge overcurrent detection delay)",
          "symbol": "TEC",
          "kind": "electrical",
          "unit": "ms",
          "min": 11.2,
          "typ": 16,
          "max": 20.8,
          "conditions": "VM-VSS=0→0.20V",
          "source_page": 4,
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        {
          "name": "放电过流保护解除延时 (discharge overcurrent release delay)",
          "symbol": "TECR",
          "kind": "electrical",
          "unit": "ms",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "VM-VSS=0.20→0V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "充电过流保护电压 (charge overcurrent detection voltage)",
          "symbol": "VCHA",
          "kind": "electrical",
          "unit": "mV",
          "min": -70,
          "typ": -50,
          "max": -30,
          "conditions": "VSS-VM=0→0.30V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "充电过流保护延时 (charge overcurrent detection delay)",
          "symbol": "TCHA",
          "kind": "electrical",
          "unit": "ms",
          "min": 5.6,
          "typ": 8,
          "max": 10.4,
          "conditions": "VSS-VM=0→0.30V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "充电过流保护解除延时 (charge overcurrent release delay)",
          "symbol": "TCHAR",
          "kind": "electrical",
          "unit": "ms",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "VSS-VM=0.30→0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "短路保护电压 (short-circuit detection voltage)",
          "symbol": "VSHORT",
          "kind": "electrical",
          "unit": "V",
          "min": 0.4,
          "typ": 0.5,
          "max": 0.6,
          "conditions": "VM-VSS=0→1.5V",
          "source_page": 4,
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        {
          "name": "短路保护延时 (short-circuit detection delay)",
          "symbol": "TSHORT",
          "kind": "electrical",
          "unit": "μs",
          "min": 140,
          "typ": 280,
          "max": 560,
          "conditions": "VM-VSS=0→1.5V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "允许向0V电池充电的充电器电压 (0V charging charger voltage)",
          "symbol": "V0CH",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": 0.7,
          "max": 1.5,
          "conditions": "允许向 0V 电池充电功能",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "短路保护解除延时 (short-circuit release delay)",
          "symbol": "TSHORTR",
          "kind": "electrical",
          "unit": "ms",
          "min": 0.5,
          "typ": 1,
          "max": 1.5,
          "conditions": "VM-VSS=1.5→0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VM-VSS端子间电阻 (VM-VSS internal resistance)",
          "symbol": "RVMS",
          "kind": "electrical",
          "unit": "KΩ",
          "min": 750,
          "typ": 1500,
          "max": 3000,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VM-VSS端子间电阻 (VM-VSS resistance, second printed row)",
          "symbol": "",
          "kind": "electrical",
          "unit": "KΩ",
          "min": 10,
          "typ": 20,
          "max": 30,
          "conditions": "VDD=3.5V, VVM=1.0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "放电过流解除电压 (discharge overcurrent release voltage, VDD-referenced offsets)",
          "symbol": "VRIOV",
          "kind": "electrical",
          "unit": "V",
          "min": -1.4,
          "typ": -1,
          "max": -0.6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "芯片电源电压 abs max (VDD-VSS, referenced to VSS)",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 8,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VM输入端子电压 abs max (referenced to VDD)",
          "symbol": "VVM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -28,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "CO输出端子电压 abs max (min referenced to VVM, max referenced to VDD)",
          "symbol": "VCO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "DO输出端子电压 abs max (min referenced to VSS, max referenced to VDD)",
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "工作温度范围 (operating temperature)",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "储存温度范围 (storage temperature)",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
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        }
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