TC4059

{
  "schema_version": 1,
  "type": "component",
  "slug": "tc4059",
  "title": "TC4059",
  "brief": "Shenzhen Fuman Battery Management, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "tc4059"
  ],
  "component": {
    "mpn": "TC4059",
    "manufacturer": "Shenzhen Fuman",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fac21005f8bb11ed4c14ecbf512cb443.pdf",
    "parts": {
      "symbol": "tc4059.kicad_sym",
      "footprint": "tc4059.kicad_mod",
      "model_3d": "tc4059-etched.glb",
      "model_3d_plain": "tc4059.glb",
      "model_3d_step": "tc4059-etched.step",
      "model_3d_step_plain": "tc4059.step",
      "lbr": "tc4059.lbr"
    },
    "distributor_links": {
      "lcsc": "C29781278"
    },
    "pins": [
      {
        "number": "1",
        "name": "TEMP",
        "type": "input",
        "description": "Battery temperature sense input. Connect to the divider between VCC, an NTC thermistor and GND. Charging is suspended when V(TEMP) < 30% VCC (hot) or > 60% VCC (cold). Tie to GND to disable the NTC feature; other charging functions remain normal."
      },
      {
        "number": "2",
        "name": "PROG",
        "type": "passive",
        "description": "External charge-current programming pin. A resistor from PROG to GND sets fast-charge current per I_BAT = V_PROG / R_PROG × 1700 (V_PROG = 1V in CC mode, 0.1V in trickle mode). Also used to monitor instantaneous charge current. 1% precision resistor recommended."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground / power return."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Input supply. Normal operating range 4.5-6V (typical 5V); OVP trips at ~7V (6.7-7.3V) and absolute max is 36V (slow ramp), enabling survival of hot-plug transients. UVLO ~3.5V rising with 100mV hysteresis."
      },
      {
        "number": "5",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery connection / charge current output. Regulates to 4.2V float and sources the programmed charge current up to 1A. High-voltage tolerant to 30V; sleep-mode leakage ≤ 30nA. Bypass with 1-10µF to GND close to the pin."
      },
      {
        "number": "6",
        "name": "STDBY",
        "type": "output",
        "description": "Open-drain charge-complete indicator. Internally pulled low (up to 5mA) when charging has terminated (charge current has fallen below I_TERM); high-impedance otherwise. Absolute max 7V."
      },
      {
        "number": "7",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charging status indicator. Pulled low (up to 5mA) while a charge cycle is in progress; high-impedance otherwise. Typically drives an LED to indicate charging activity. Absolute max 7V."
      },
      {
        "number": "8",
        "name": "EN",
        "type": "input",
        "description": "Chip enable input, TTL/CMOS compatible. Logic high (V > 1V typ) enables normal operation; logic low (V < 0.9V typ) puts the device into shutdown (~22µA). Absolute max 7V; leakage ±1µA."
      },
      {
        "number": "9",
        "name": "EXPOSED PAD",
        "type": "power_in",
        "description": "Exposed thermal pad. Present in the package land pattern; connect it per the manufacturer datasheet thermal recommendation. Added because the footprint carries this pad and the symbol had no pin for it.",
        "source": "derived-from-footprint"
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/fac21005f8bb11ed4c14ecbf512cb443.pdf",
        "pages": 10,
        "sha256": "ee4d4d1e5d946092",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e",
      "mark": "drawn"
    },
    "logic": {
      "family_id": "CD4059",
      "logic_family": "CD4000",
      "function_code": "4059",
      "function_class": null,
      "function_name": null,
      "manufacturer": "Toshiba",
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "tc4059.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tc4059-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.9,
          4.9,
          1.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "206eb015fc6bfa35bea3a309db39309e8389942578b84f6a3244e958b3889ae9",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen Fuman",
      "Package": "ESOP-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tc4059"
  ],
  "discovery_pitch": "TC4059 (Shenzhen Fuman) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tc4059.kicad_sym",
    "tc4059.kicad_mod",
    "tc4059.glb",
    "tc4059.step",
    "tc4059-etched.step",
    "tc4059.lbr",
    "docs/hero.png",
    "docs/tc4059-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "TC4059E",
      "kind": "packaging"
    },
    {
      "mpn": "TC4059D3",
      "kind": "packaging"
    },
    {
      "mpn": "TC4059D2",
      "kind": "packaging"
    },
    {
      "mpn": "TC4059S",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T09:21:51.671Z"
}