SM5402

{
  "slug": "sm5402",
  "version": "0.1.0",
  "type": "component",
  "description": "HICHON Battery Management ICs, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power supply chip",
    "sm5402",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sm5402.kicad_sym",
    "sm5402.kicad_mod",
    "sm5402.glb",
    "sm5402.step",
    "sm5402.lbr",
    "docs/hero.png",
    "docs/sm5402-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sm5402-hero.glb",
    "sm5402-hero.overlay.json",
    "sm5402-etched.glb"
  ],
  "component": {
    "mpn": "SM5402",
    "manufacturer": "HICHON",
    "package": "ESOP-8",
    "pin_count": 9,
    "category": "Power Supply Chip",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/555c1dd676aed01e769f5f4ef81e7600.pdf",
    "parts": {
      "symbol": "sm5402.kicad_sym",
      "footprint": "sm5402.kicad_mod",
      "model_3d": "sm5402-hero.glb",
      "model_3d_plain": "sm5402-etched.glb",
      "model_3d_step": "sm5402-etched.step",
      "model_3d_step_plain": "sm5402.step",
      "lbr": "sm5402.lbr"
    },
    "distributor_links": {
      "lcsc": "C5157549",
      "digikey": "4878-SM5402CT-ND",
      "mouser": "637-SM5402"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T04:48:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "4878-SM5402CT-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "637-SM5402",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "L1",
        "type": "output",
        "description": "LED indicator 1 drive pin for charge and discharge status; the datasheet states that leaving LED1 unconnected selects single-LED mode and absolute maximum voltage is -0.3V to 5.5V."
      },
      {
        "number": "2",
        "name": "L2",
        "type": "output",
        "description": "LED indicator 2 drive pin for charge and discharge status, with absolute maximum voltage of -0.3V to 5.5V."
      },
      {
        "number": "3",
        "name": "BTP",
        "type": "power_in",
        "description": "Battery terminal connected to the lithium cell, with absolute maximum voltage of -0.3V to 5.5V and a battery voltage range of 2.95V to 4.4V in the electrical characteristics."
      },
      {
        "number": "4",
        "name": "VOUT",
        "type": "input",
        "description": "Output voltage feedback pin for the boost converter, with absolute maximum voltage of -0.3V to 5.5V; the boost output is fixed at 5.1V (typ) with overvoltage protection at 5.8V."
      },
      {
        "number": "5",
        "name": "VO/IN",
        "type": "bidirectional",
        "description": "Shared output/input port used for USB charging input (4.5V to 5.5V) and boost output, with a stated working range of 0.5V to 5V and absolute maximum of -0.3V to 5.5V."
      },
      {
        "number": "6",
        "name": "LX",
        "type": "passive",
        "description": "Inductor connection for the synchronous boost converter, with absolute maximum voltage of -0.3V to 5.5V; the typical application circuit uses a 4.7uH inductor."
      },
      {
        "number": "7",
        "name": "PGND",
        "type": "power_in",
        "description": "Power ground for the boost and charger power stage, with absolute maximum rating of -0.3V to 5.5V relative to GND."
      },
      {
        "number": "8",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground for the control circuitry, with absolute maximum rating of -0.3V to 5.5V relative to GND."
      },
      {
        "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: The datasheet lists ESOP-8 as the only package (ordering table: ESOP8, Pb-free, reel of 4000pcs), so; The datasheet gives no explicit ERC class for pins. Types for L1/L2 (output), BTP and PGND/AGND (pow; Pin descriptions are taken from the Chinese pin description table and the maximum-rating and electri",
          "exposed pad 9 added from the footprint"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0257,
        "at": "2026-10-21T04:46:05"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/555c1dd676aed01e769f5f4ef81e7600.pdf",
        "pages": 7,
        "sha256": "0523657553876694",
        "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": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f1718a42c5ea007e8e2dd672ac39a1bb358ee4849bd53c42e21ce83e0e5df7a9",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sm5402-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d762d90bef0029f0aee7c95c40c51badb221af81cc52b3283c299744d3498111",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}