TP4056-42-EMSOP8

{
  "slug": "tp4056-42-emsop8",
  "version": "0.1.0",
  "type": "component",
  "description": "TOPPOWER Nanjing Extension Microelectronics Battery Management, MSOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tp4056-42-emsop8",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tp4056-42-emsop8.kicad_sym",
    "tp4056-42-emsop8.kicad_mod",
    "tp4056-42-emsop8.glb",
    "tp4056-42-emsop8.step",
    "tp4056-42-emsop8.lbr",
    "docs/hero.png",
    "docs/tp4056-42-emsop8-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tp4056-42-emsop8-hero.glb",
    "tp4056-42-emsop8-hero.overlay.json"
  ],
  "component": {
    "mpn": "TP4056-42-EMSOP8",
    "manufacturer": "TOPPOWER Nanjing Extension Microelectronics",
    "package": "MSOP-8-EP",
    "pin_count": 9,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588882129753419776",
    "parts": {
      "symbol": "tp4056-42-emsop8.kicad_sym",
      "footprint": "tp4056-42-emsop8.kicad_mod",
      "model_3d": "tp4056-42-emsop8-hero.glb",
      "model_3d_plain": "tp4056-42-emsop8.glb",
      "model_3d_step": "tp4056-42-emsop8-etched.step",
      "model_3d_step_plain": "tp4056-42-emsop8.step",
      "lbr": "tp4056-42-emsop8.lbr"
    },
    "distributor_links": {
      "lcsc": "C21417"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T00:46:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TEMP",
        "type": "input",
        "description": "Battery temperature sense input for the NTC thermistor; charging is suspended if TEMP is below 45% or above 80% of VCC, and grounding TEMP disables the function."
      },
      {
        "number": "2",
        "name": "PROG",
        "type": "bidirectional",
        "description": "Constant-current programming pin: a resistor RPROG to GND sets the charge current (IBAT = VPROG/RPROG × 1100), with VPROG regulated to 1V in constant-current mode and 0.1V in recharge mode."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground terminal for the charger."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive input supply, specified 4.0V to 8.0V (absolute maximum -0.3V to 8V); the device enters shutdown when VCC is within 30mV of the BAT pin voltage."
      },
      {
        "number": "5",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery connection that delivers charge current and regulates the final float voltage to 4.2V; it draws less than 2µA in chip-disable or sleep mode."
      },
      {
        "number": "6",
        "name": "STDBY",
        "type": "output",
        "description": "Open-drain charge-complete status output that is pulled low by an internal switch when the charge cycle completes and is high impedance otherwise."
      },
      {
        "number": "7",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge status output that is pulled low by an internal switch while the battery is charging and is high impedance otherwise."
      },
      {
        "number": "8",
        "name": "CE",
        "type": "input",
        "description": "Chip enable input: a logic high enables normal operation and a logic low puts the TP4056 into shutdown; it can be driven by TTL or CMOS logic levels."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin numbers and names are taken from the PIN FUNCTIONS text on page 7. The EMSOP8 package drawing on; The EMSOP8 exposed thermal pad on the package back is not given a pin number in the text (the datash; Pin type for BAT is an assumption (power_out): the datasheet describes it as both a charge-current o",
          "exposed pad 9 added from the footprint"
        ],
        "pages_sent": 15,
        "cost_usd": 0.071,
        "at": "2026-10-10T00:44:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588882129753419776",
        "pages": 15,
        "sha256": "10cf357f93b118df",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tp4056-42-emsop8.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.96
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "43252be3beac8fd30ca9bfeb82a613fa01d5dffff9b22810c13a4655daafb5ee",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tp4056-42-emsop8-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.96
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bf68af7750f8c019ab8fd93f71ca58e7a2c17ff4a2ec39718952d7ef18ba8939",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}