TP5400

{
  "schema_version": 1,
  "type": "component",
  "slug": "tp5400",
  "title": "TP5400",
  "brief": "TOPPOWER Nanjing Extension Microelectronics 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",
    "tp5400"
  ],
  "component": {
    "mpn": "TP5400",
    "manufacturer": "TOPPOWER Nanjing Extension Microelectronics",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2109091030_TOPPOWER-Nanjing-Extension-Microelectronics-TP5400_C2891434.pdf",
    "parts": {
      "symbol": "tp5400.kicad_sym",
      "footprint": "tp5400.kicad_mod",
      "model_3d": "tp5400-etched.glb",
      "model_3d_plain": "tp5400.glb",
      "model_3d_step": "tp5400-etched.step",
      "model_3d_step_plain": "tp5400.step",
      "lbr": "tp5400.lbr"
    },
    "distributor_links": {
      "lcsc": "C2891434"
    },
    "pins": [
      {
        "number": "1",
        "name": "VOUT",
        "type": "power_out",
        "description": "5V boost output voltage sense/output pin. Requires at least 47uF (tantalum/electrolytic) plus a 0.1uF ceramic and a 5.5V-6.8V TVS clamp for stable operation. Delivers up to 1A typical (1.5A peak, Vbat=3.8V)."
      },
      {
        "number": "2",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge status indicator. Pulls low (VOL <= 0.6V at 5mA) while charging is in progress; high-Z when charge is complete or the chip is in standby/shutdown. Typically drives an LED to VCC through a series resistor."
      },
      {
        "number": "3",
        "name": "PROG",
        "type": "bidirectional",
        "description": "Charge current program pin. Connect a resistor RPROG from PROG to GND to set IBAT = 1100 / RPROG (e.g. 1.1k -> 1000mA, 1.5k -> 740mA). Regulated to ~1V in constant-current mode; also monitors PROG voltage (<200mV for tTERM ~1.8ms) for C/5 termination. Leaving PROG floating shuts down the charger."
      },
      {
        "number": "4",
        "name": "STDBY",
        "type": "output",
        "description": "Open-drain standby (charge-complete) indicator. Pulls low (VOL <= 0.6V at 5mA) when the charge cycle has terminated and the chip is in standby; high-Z while charging. Typically drives an indicator LED."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Charger input supply, 4.0V to 9.0V (typ 5V). Powers the linear charger to BAT. UVLO threshold ~3.6V with 200mV hysteresis; charger inhibited when VCC is within 30mV of VBAT to prevent reverse current. Bypass with 10uF plus a 0.1uF ceramic close to the pin."
      },
      {
        "number": "6",
        "name": "BAT",
        "type": "bidirectional",
        "description": "Single-cell Li-Ion battery connection. Acts as the charger's regulated output (4.2V ±1% float, up to ~1.2A programmable) and as the boost converter's input (operates for VBAT 3V-4.2V). Recommended bypass 2x22uF. Undervoltage lockout: boost shuts down when VBAT drops below ~3V and re-enables above ~3.3V."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Power / signal ground. Must be well-connected to system ground for stable operation. Exposed die-pad (radiator) on the ESOP-8 package should also be tied to GND (or left floating) for thermal dissipation."
      },
      {
        "number": "8",
        "name": "LX",
        "type": "power_out",
        "description": "Switching node of the internal boost NMOS power stage. Connect an external inductor (3.3-22uH, typ 10uH) from BAT to LX and a Schottky diode (e.g. SS32) from LX to VOUT. Absolute range -2V to +10V; internal switch RDS(on) ~120mOhm, current limit ~4.5A."
      },
      {
        "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://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2109091030_TOPPOWER-Nanjing-Extension-Microelectronics-TP5400_C2891434.pdf",
        "pages": 8,
        "sha256": "f93dcae2a90a5c70",
        "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"
    },
    "models_3d": [
      {
        "file": "tp5400.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": "tp5400-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": "dc1303db65cb5a47be60d7dc32b732280a223f6ac7abfb0a437bfea2f0968d21",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TOPPOWER Nanjing Extension Microelectronics",
      "Package": "ESOP-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tp5400"
  ],
  "discovery_pitch": "TP5400 (TOPPOWER Nanjing Extension Microelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tp5400.kicad_sym",
    "tp5400.kicad_mod",
    "tp5400.glb",
    "tp5400.step",
    "tp5400-etched.step",
    "tp5400.lbr",
    "docs/hero.png",
    "docs/tp5400-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "TP5400ESOP8",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T11:23:16.761Z"
}