TP4057

{
  "schema_version": 1,
  "type": "component",
  "slug": "tp4057",
  "title": "TP4057",
  "brief": "UMW Battery Management, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "tp4057"
  ],
  "component": {
    "mpn": "TP4057",
    "manufacturer": "UMW",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "docs/tp4057-datasheet.pdf",
    "parts": {
      "symbol": "tp4057.kicad_sym",
      "footprint": "tp4057.kicad_mod",
      "model_3d": "tp4057-etched.glb",
      "model_3d_plain": "tp4057.glb",
      "model_3d_step": "tp4057-etched.step",
      "model_3d_step_plain": "tp4057.step",
      "lbr": "tp4057.lbr"
    },
    "distributor_links": {
      "lcsc": "C725791"
    },
    "pins": [
      {
        "number": "1",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge status output. Pulled low while a charge cycle is in progress (V_OL ~0.35 V at 5 mA sink, 0.6 V max), high-impedance otherwise. Absolute max terminal voltage -0.3 V to 8 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference / return. Connect to system ground; also serves as the thermal reference for internal thermal regulation."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery terminal. Connects to the positive terminal of the single-cell Li-ion battery; regulates to V_FLOAT = 4.24 V (±1%) at up to 500 mA charge current. Absolute max -0.3 V to 6.5 V; max sink current 600 mA."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Input supply pin. Operating range 4.0 V to 6.5 V (absolute max -0.3 V to 6.5 V). Undervoltage lockout at ~3.8 V rising with ~200 mV hysteresis. Bypass with 4.7-10 µF to GND."
      },
      {
        "number": "5",
        "name": "STDBY",
        "type": "output",
        "description": "Open-drain charge-complete / standby indicator. Pulled low when the charge cycle has terminated and the battery is fully charged (V_OL ~0.35 V at 5 mA sink, 0.6 V max), high-impedance otherwise. Absolute max terminal voltage -0.3 V to 8 V."
      },
      {
        "number": "6",
        "name": "PROG",
        "type": "input",
        "description": "Charge current program pin. Connect a resistor R_PROG from PROG to GND to set the constant-current charge current (R_PROG=10 kΩ → 100 mA typ; R_PROG=2 kΩ → 500 mA typ). Also serves as manual shutdown when pulled above V_MSD ≈ 1.21 V open-circuit. Pin voltage in CC mode ≈ 1.0 V; internal pull-up ≈ 2 µA."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "docs/tp4057-datasheet.pdf",
        "pages": 12,
        "sha256": "3c03919324e6444e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-6@sha256:f341c73aac9dcb55",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "tp4057.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tp4057-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5724af6e45a708b046f75a77427845d53728cb86389136da07ce6a085621b4a0",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UMW",
      "Package": "SOT-23-6",
      "Category": "PMIC",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tp4057"
  ],
  "discovery_pitch": "TP4057 (UMW) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tp4057.kicad_sym",
    "tp4057.kicad_mod",
    "tp4057.glb",
    "tp4057.step",
    "tp4057-etched.step",
    "tp4057.lbr",
    "docs/hero.png",
    "docs/tp4057-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "updated_at": "2026-09-25T11:20:29.562Z"
}