LT3750EMS#PBF

{
  "slug": "lt3750ems-pbf",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices Battery Management ICs, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "lt3750ems#pbf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lt3750ems-pbf.kicad_sym",
    "lt3750ems-pbf.kicad_mod",
    "lt3750ems-pbf.glb",
    "lt3750ems-pbf.step",
    "lt3750ems-pbf.lbr",
    "docs/hero.png",
    "docs/lt3750ems-pbf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lt3750ems-pbf-hero.glb",
    "lt3750ems-pbf-hero.overlay.json",
    "lt3750ems-pbf-etched.glb"
  ],
  "component": {
    "mpn": "LT3750EMS#PBF",
    "manufacturer": "Analog Devices",
    "package": "MSOP-10",
    "pin_count": 10,
    "category": "Power Management ICs",
    "subcategory": "Battery Management ICs",
    "datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/3750fa.pdf",
    "parts": {
      "symbol": "lt3750ems-pbf.kicad_sym",
      "footprint": "lt3750ems-pbf.kicad_mod",
      "model_3d": "lt3750ems-pbf-hero.glb",
      "model_3d_plain": "lt3750ems-pbf-etched.glb",
      "model_3d_step": "lt3750ems-pbf-etched.step",
      "model_3d_step_plain": "lt3750ems-pbf.step",
      "lbr": "lt3750ems-pbf.lbr"
    },
    "distributor_links": {
      "lcsc": "C84289",
      "digikey": "505-LT3750EMS#PBF-ND",
      "mouser": "584-LT3750EMS#PBF"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T12:31:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "505-LT3750EMS#PBF-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "584-LT3750EMS#PBF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VTRANS",
        "type": "power_in",
        "description": "Transformer supply pin that powers the transformer primary and the boundary mode detection circuitry; bypass at the pin with a 1µF to 10µF capacitor."
      },
      {
        "number": "2",
        "name": "DONE",
        "type": "output",
        "description": "Open-collector indication pin that turns on an NPN when the target output voltage is reached or on a fault such as thermal shutdown or undervoltage lockout; requires a pull-up resistor or current source (absolute maximum 24V, ±1mA)."
      },
      {
        "number": "3",
        "name": "CHARGE",
        "type": "input",
        "description": "Starts a new charge cycle when driven to 1.1V or higher and shuts the part down when driven below 0.2V, requiring a step input with a minimum ramp rate of 1V/µs."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Input supply pin (3V minimum, 24V maximum) to be bypassed locally with a 1µF to 10µF ceramic capacitor."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin, connected directly to the local ground plane."
      },
      {
        "number": "6",
        "name": "SOURCE",
        "type": "input",
        "description": "Senses NMOS drain current via the NMOS source and current sense resistor, with a current limit of 78mV/RSENSE (1V absolute maximum)."
      },
      {
        "number": "7",
        "name": "GATE",
        "type": "output",
        "description": "NMOS gate driver output that drives the gate to within VCC - 2V during each switching cycle."
      },
      {
        "number": "8",
        "name": "RDCM",
        "type": "input",
        "description": "Discontinuous mode sense pin that detects zero transformer current and starts a new charge cycle through a resistor to the NMOS drain (43k, 5% recommended)."
      },
      {
        "number": "9",
        "name": "RVOUT",
        "type": "input",
        "description": "Output voltage V-I converter pin that develops a current proportional to the output capacitor voltage through a resistor connected to the NMOS drain."
      },
      {
        "number": "10",
        "name": "RBG",
        "type": "input",
        "description": "Output voltage sense pin that disables charging and pulls DONE low when its voltage reaches 1.24V, with a resistor to GND of 2.5k or less recommended (2.49k, 1%)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 16,
        "cost_usd": 0.142,
        "at": "2026-10-31T12:31:32"
      },
      "datasheet": {
        "url": "https://www.analog.com/media/en/technical-documentation/data-sheets/3750fa.pdf",
        "pages": 16,
        "sha256": "d14dd655e4d660b1",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lt3750ems-pbf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lt3750ems-pbf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b886c42067e0f20705c20b937dbe0ed78daeeb7dd098e46d8e814604848bcd04",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "MS",
      "source_page": 15,
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.1,
        "range_mm": [
          null,
          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "lt3750ems-pbf.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}