TJ7660D

{
  "schema_version": 1,
  "type": "component",
  "slug": "tj7660d",
  "title": "TJ7660D",
  "brief": "HTC Korea TAEJIN Tech Charge Pumps, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "tj7660d"
  ],
  "component": {
    "mpn": "TJ7660D",
    "manufacturer": "HTC Korea TAEJIN Tech",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Charge Pumps",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588879819031924736",
    "parts": {
      "symbol": "tj7660d.kicad_sym",
      "footprint": "tj7660d.kicad_mod",
      "model_3d": "tj7660d-etched.glb",
      "model_3d_plain": "tj7660d.glb",
      "model_3d_step": "tj7660d-etched.step",
      "model_3d_step_plain": "tj7660d.step",
      "lbr": "tj7660d.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie to a nearby copper pour for mechanical support only."
      },
      {
        "number": "2",
        "name": "CAP+",
        "type": "passive",
        "description": "Positive terminal of the external charge-pump 'flying' capacitor C1 (typ. 10 uF). Alternately switched between V+ and CAP- during the pump cycle to transfer charge to the reservoir capacitor."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground / 0 V reference for the input supply and the output reservoir capacitor return."
      },
      {
        "number": "4",
        "name": "CAP-",
        "type": "passive",
        "description": "Negative terminal of the external charge-pump 'flying' capacitor C1. Alternately switched between GND (charge phase) and VOUT (transfer phase) by the internal N-channel MOS switches."
      },
      {
        "number": "5",
        "name": "VOUT",
        "type": "power_out",
        "description": "Inverted supply output; delivers -V+ (approximately -1.5 V to -10 V) into the external reservoir capacitor C2 (typ. 10 uF to GND). Typical output source resistance is 60 Ohm (100 Ohm max) at IOUT = 20 mA, V+ = 5 V."
      },
      {
        "number": "6",
        "name": "LV",
        "type": "input",
        "description": "Low-voltage operation mode select. Tie to GND to bypass the internal series regulator and improve operation for V+ in the 1.5 V - 3.5 V range. Must be left floating (open) for V+ >= 3.5 V (up to 10 V) to prevent device latchup. Absolute-max input current 20 uA for V+ > 3.5 V."
      },
      {
        "number": "7",
        "name": "OSC",
        "type": "bidirectional",
        "description": "Internal RC-oscillator node. Nominal free-running frequency is ~10 kHz at V+ = 5 V with COSC = 0. Add an external capacitor to GND to lower the frequency, or drive with an external clock to override the internal oscillator."
      },
      {
        "number": "8",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply input, +1.5 V to +10 V (absolute-max +10.5 V). Also serves as the reference used by the level translator and internal voltage regulator. Typical supply current 100 uA (180 uA max) with no load."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588879819031924736",
        "pages": 11,
        "sha256": "86054706302dec33",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tj7660d.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tj7660d-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "26530780cff877cc12e902bdccd45772152a226f345bf54b73eb5f84c399fd32",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HTC Korea TAEJIN Tech",
      "Package": "SOIC-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "TJ7660DD",
      "kind": "packaging"
    },
    {
      "mpn": "TJ7660DN",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tj7660d"
  ],
  "discovery_pitch": "TJ7660D (HTC Korea TAEJIN Tech) 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",
    "tj7660d.kicad_sym",
    "tj7660d.kicad_mod",
    "tj7660d.glb",
    "tj7660d.step",
    "tj7660d.lbr",
    "docs/hero.png",
    "docs/tj7660d-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T09:41:43.810Z"
}