IP2312U_VSET

{
  "schema_version": 1,
  "type": "component",
  "slug": "ip2312u-vset",
  "title": "IP2312U_VSET",
  "brief": "INJOINIC IP2312U VSET Battery Management, SOP-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ip2312u_vset"
  ],
  "component": {
    "mpn": "IP2312U_VSET",
    "manufacturer": "INJOINIC IP2312U VSET",
    "package": "SOP-8-EP",
    "pin_count": 9,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/846feb3b6ab45044a5c29188d4a683e3.pdf",
    "parts": {
      "symbol": "ip2312u-vset.kicad_sym",
      "footprint": "ip2312u-vset.kicad_mod",
      "model_3d": "ip2312u-vset-etched.glb",
      "model_3d_plain": "ip2312u-vset.glb",
      "model_3d_step": "ip2312u-vset-etched.step",
      "model_3d_step_plain": "ip2312u-vset.step",
      "lbr": "ip2312u-vset.lbr"
    },
    "distributor_links": {
      "lcsc": "C605432"
    },
    "pins": [
      {
        "number": "1",
        "name": "D1",
        "type": "bidirectional",
        "description": "LED1 drive pin, also used for battery-type (full-charge voltage) selection via a pull-down resistor RVSET to GND: NC=4.2V, 43k=4.3V, 75k=4.35V, 100k=4.4V. Muxed function: at power-up the pin senses RVSET, then it drives the charge-status LED."
      },
      {
        "number": "2",
        "name": "TEST",
        "type": "passive",
        "description": "Test pin. Connect via a 1kΩ resistor to the battery positive terminal (VBAT) in the application circuit."
      },
      {
        "number": "3",
        "name": "D2",
        "type": "output",
        "description": "LED2 drive pin for charge-status indication (typ. 5mA, range 3-10mA). Used in 2-LED indication mode alongside D1."
      },
      {
        "number": "4",
        "name": "NTC",
        "type": "input",
        "description": "Battery NTC temperature sense input. Sources 20µA into an external NTC network to GND; charger throttles above 43°C and shuts down above 45°C. Tie to GND via 51kΩ if NTC function is not used (do not leave floating)."
      },
      {
        "number": "5",
        "name": "BAT",
        "type": "power_out",
        "description": "Battery connection pin. Connects to the Li-ion battery positive terminal; charge target voltage 4.15/4.2/4.23V (typ) with recharge threshold 4.1V."
      },
      {
        "number": "6",
        "name": "ICHG",
        "type": "passive",
        "description": "Charge-current programming pin. External resistor RICHG to GND sets constant charge current: ICC = 135000 / RICHG (A). RICHG max ~170kΩ; if left NC, default 2.1A is used."
      },
      {
        "number": "7",
        "name": "SW",
        "type": "power_out",
        "description": "Buck converter switch node. Connect to the 1µH power inductor going to BAT. 750kHz switching frequency; absolute max 6.5V (9V <10µs pulse)."
      },
      {
        "number": "8",
        "name": "VIN",
        "type": "power_in",
        "description": "5V charge input pin. Operating range 4.5-5.5V (typ 5V). UVLO ~4.5V, OVP ~5.6V. Bypass close to pin with 10µF + 22µF ceramic caps."
      },
      {
        "number": "9",
        "name": "EPAD",
        "type": "power_in",
        "description": "Exposed thermal pad on package underside - device GND. Must be soldered to the PCB ground plane for proper electrical and thermal performance (θJA=60 °C/W)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/846feb3b6ab45044a5c29188d4a683e3.pdf",
        "pages": 11,
        "sha256": "c5a61e5feddba061",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm@sha256:a7971720bdda0353",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ip2312u-vset.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ip2312u-vset-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "924c9aa8a3aa96ef5ca8be55c4edfe66050ab0436719fb417dae19d50cb9da47",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "INJOINIC",
      "Package": "SOP-8-EP",
      "Category": "PMIC",
      "Pins": "9"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ip2312u_vset"
  ],
  "discovery_pitch": "IP2312U_VSET (INJOINIC IP2312U VSET) 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",
    "ip2312u-vset.kicad_sym",
    "ip2312u-vset.kicad_mod",
    "ip2312u-vset.glb",
    "ip2312u-vset.step",
    "ip2312u-vset-etched.step",
    "ip2312u-vset.lbr",
    "docs/hero.png",
    "docs/ip2312u-vset-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "variants": [
    {
      "mpn": "IP2312U_VSET",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T22:45:45.721Z"
}