WS4508E-5

{
  "schema_version": 1,
  "type": "component",
  "slug": "ws4508e-5",
  "title": "WS4508E-5",
  "brief": "WILLSEMI(Will Semicon) Battery Management ICs, SOT-23-5L. 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 ics",
    "ws4508e-5",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "WS4508E-5",
    "manufacturer": "WILLSEMI(Will Semicon)",
    "package": "SOT-23-5L",
    "pin_count": 5,
    "category": "Power Management ICs",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/40bd22188fbe5cbb091e71c8d23d25f9.pdf",
    "parts": {
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      "model_3d_step_plain": "ws4508e-5.step",
      "lbr": "ws4508e-5.lbr"
    },
    "distributor_links": {
      "lcsc": "C506237"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:43:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CHGb",
        "type": "output",
        "description": "Open-drain charge status output that is pulled low while the battery is charging and forced high impedance when the charge cycle is completed or VCC is removed."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Charge current output that provides charge current to the battery and regulates the final float voltage to 4.2V."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply input, with an absolute maximum of -0.3 to 8V."
      },
      {
        "number": "5",
        "name": "PROG",
        "type": "input",
        "description": "Charge current setting, charge current monitor and shutdown pin, with IBAT = (1/RPROG)*1000, and the chip shuts down when the PROG pin is floating."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "primary_model": "claude-sonnet-5-5",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
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        "cost_usd": 0.0801,
        "at": "2026-10-22T21:43:21"
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      "datasheet": {
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        "sha256": "10d20a4476ef4b1f",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "WILLSEMI(Will Semicon)",
      "Package": "SOT-23-5L",
      "Category": "Power Management ICs",
      "Pins": "5"
    },
    "characteristics": {
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          "max": 8,
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        {
          "name": "PROG Voltage",
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          "name": "BAT Voltage",
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        {
          "name": "Power Dissipation Note1",
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          "name": "Storage Temperature",
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          "name": "Lead Temperature",
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          "name": "Thermal Resistance Junction to Ambient Note1",
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          "name": "Charge Mode Battery Current",
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          "name": "Standby Mode Supply Current",
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          "name": "Shutdown Mode Supply Current",
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        {
          "name": "Shutdown Mode BAT Pin Current",
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          "name": "UVLO Mode Supply Current",
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          "name": "UVLO Mode BAT Pin Current",
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          "unit": "uA",
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          "max": 70,
          "conditions": "Rprog not Connected",
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        {
          "name": "Manual Shutdown BAT Pin Current",
          "symbol": "IBATMSD",
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          "unit": "uA",
          "min": -0.05,
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          "conditions": "Vprog=1.3V; printed ±0.05 ±1",
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        {
          "name": "Sleep Mode BAT Pin Current",
          "symbol": "IBATSLEEP",
          "kind": "electrical",
          "unit": "uA",
          "min": -0.05,
          "typ": null,
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          "name": "Float Voltage",
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          "kind": "electrical",
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          "min": 4.158,
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          "conditions": "",
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        {
          "name": "Trickle Charge Current",
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          "kind": "electrical",
          "unit": "mA",
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          "name": "Trickle Charge Voltage Threshold",
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          "name": "Trickle Charge Voltage Hysteresis",
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          "unit": "V",
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          "name": "Vcc-VBAT Lockout Threshold Voltage",
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          "name": "Auto Recharge Battery Voltage",
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          "name": "Power FET ON Resistance",
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          "name": "Soft-Start Time",
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          "name": "Recharge Comparator Filter Time",
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          "name": "Termination Comparator Filter Time",
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          "name": "PROG Pin Pull-up Current",
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