JTD4054

{
  "schema_version": 1,
  "type": "component",
  "slug": "jtd4054",
  "title": "JTD4054",
  "brief": "JTD Battery Management, SOT-23-5L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "jtd4054"
  ],
  "component": {
    "mpn": "JTD4054",
    "manufacturer": "JTD",
    "package": "SOT-23-5L",
    "pin_count": 5,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f50f9d509d88e91858f3d970fb988aea.pdf",
    "parts": {
      "symbol": "jtd4054.kicad_sym",
      "footprint": "jtd4054.kicad_mod",
      "model_3d": "jtd4054-etched.glb",
      "model_3d_plain": "jtd4054.glb",
      "model_3d_step": "jtd4054-etched.step",
      "model_3d_step_plain": "jtd4054.step",
      "lbr": "jtd4054.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge-status indicator. Pulled low internally while charging; high-impedance when charging ends. Blinks (via internal switch toggling) if a charger is plugged in with no battery attached. VOL = 50 mV typ at ICHRG = 5 mA; leave floating or tied to GND if unused."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground / power return."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery positive terminal. Sources charge current to the Li-ion/Li-poly cell and regulates the float voltage to 4.2 V. Leakage into this pin drops to ~5 nA in sleep mode (VCC absent) and ~1.2 µA in standby. Absolute rating: -11 V to +13 V; max continuous current 500 mA."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Charger input supply, 4.5 V to 6.5 V typical (abs max 10 V). Charging starts when VCC exceeds the UVLO threshold (3.5 V typ) AND is at least ~110 mV above VBAT; the device enters low-power sleep when VCC falls below UVLO or within 50 mV of VBAT. Bypass with 2.2 µF to GND."
      },
      {
        "number": "5",
        "name": "PROG",
        "type": "input",
        "description": "Charge-current program pin. A resistor RPROG from PROG to GND sets constant-current charge current: IBAT = 1000 V / RPROG (RPROG ≥ 2 kΩ, i.e. ICC ≤ 500 mA). Pin is regulated to 1.0 V in CC mode and to 0.1 V during trickle charge; end-of-charge is detected when this pin drops below 100 mV (15% of set current) for > 1.4 ms."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f50f9d509d88e91858f3d970fb988aea.pdf",
        "pages": 8,
        "sha256": "c73d518dd59f6707",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "jtd4054.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": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "jtd4054-etched.step",
        "role": "eda",
        "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": "a61a8c8cd140ae78d653d3605cfc5ade9436fbe4e63a42be3d1843a0a6589919",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "JTD",
      "Package": "SOT-23-5L",
      "Category": "PMIC",
      "Pins": "5"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "jtd4054"
  ],
  "discovery_pitch": "JTD4054 (JTD) 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",
    "jtd4054.kicad_sym",
    "jtd4054.kicad_mod",
    "jtd4054.glb",
    "jtd4054.step",
    "jtd4054-etched.step",
    "jtd4054.lbr",
    "docs/hero.png",
    "docs/jtd4054-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T23:17:11.917Z"
}