HE4057A

{
  "slug": "he4057a",
  "version": "0.1.0",
  "type": "component",
  "description": "HEERMICR Battery Management, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "he4057a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "he4057a.kicad_sym",
    "he4057a.kicad_mod",
    "he4057a.glb",
    "he4057a.step",
    "he4057a.lbr",
    "docs/hero.png",
    "docs/he4057a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "he4057a-hero.glb",
    "he4057a-hero.overlay.json",
    "he4057a-etched.glb"
  ],
  "component": {
    "mpn": "HE4057A",
    "manufacturer": "HEERMICR",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Power Management (PMIC)",
    "subcategory": "Battery Management",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590239351549964288",
    "parts": {
      "symbol": "he4057a.kicad_sym",
      "footprint": "he4057a.kicad_mod",
      "model_3d": "he4057a-hero.glb",
      "model_3d_plain": "he4057a-etched.glb",
      "model_3d_step": "he4057a-etched.step",
      "model_3d_step_plain": "he4057a.step",
      "lbr": "he4057a.lbr"
    },
    "distributor_links": {
      "lcsc": "C5123430"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:56:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CHRG",
        "type": "output",
        "description": "Open-drain charge-status output that is pulled low while the charger is charging (VCHRG at most 0.5 V at 5 mA sink) and is high-impedance in other states, flashing when no battery is connected."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the charger, to be connected to system ground."
      },
      {
        "number": "3",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery positive connection that delivers the charge current and regulates the battery to the float voltage of 4.20 V (4.16 V to 4.25 V); reverse-battery protection is provided."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Input supply pin, rated 4.50 V to 7.0 V (5.0 V typical) with an absolute maximum of 9 V, and the charger enters shutdown when VCC falls below the 3.8 V UVLO threshold."
      },
      {
        "number": "5",
        "name": "STDBY",
        "type": "output",
        "description": "Open-drain charge-complete output that is pulled low when the battery charge cycle ends (VSTDBY at most 0.5 V at 5 mA sink) and is high-impedance otherwise."
      },
      {
        "number": "6",
        "name": "PROG",
        "type": "passive",
        "description": "Programmable charge-current pin where a resistor to GND sets the constant charge current (charge current = 1000 × 1.0 V / RPROG, e.g. 100 mA at 10 kΩ and 500 mA at 2 kΩ), with an absolute maximum of 7 V."
      }
    ],
    "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 types BAT (power_out) and PROG (passive) are my KiCad class judgments; the datasheet does not as; Pin numbering comes from the pin table on page 2 (1 CHRG, 2 GND, 3 BAT, 4 VCC, 5 STDBY, 6 PROG). The; Descriptions for CHRG and STDBY combine the page-2 pin names with behaviour from the page-5 text and"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0406,
        "at": "2026-10-18T07:55:16"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590239351549964288",
        "pages": 7,
        "sha256": "b0d0ec02032b8453",
        "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"
    },
    "models_3d": [
      {
        "file": "he4057a.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "he4057a-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": "8aab8a17ffe0ec6f336c73c41c0b508713a11bd702d1d7ca65925f59be67541b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}