main
Ray Publish 0.1.0 09b34db 12d ago
{
  "slug": "tl2845bdr-8",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments DC-DC Controllers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "tl2845bdr-8",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tl2845bdr-8.kicad_sym",
    "tl2845bdr-8.kicad_mod",
    "tl2845bdr-8.glb",
    "tl2845bdr-8.step",
    "tl2845bdr-8.lbr",
    "docs/hero.png",
    "docs/tl2845bdr-8-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tl2845bdr-8-hero.glb",
    "tl2845bdr-8-hero.overlay.json",
    "tl2845bdr-8-etched.glb"
  ],
  "component": {
    "mpn": "TL2845BDR-8",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Controllers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tl2845bdr-8.pdf",
    "parts": {
      "symbol": "tl2845bdr-8.kicad_sym",
      "footprint": "tl2845bdr-8.kicad_mod",
      "model_3d": "tl2845bdr-8-hero.glb",
      "model_3d_plain": "tl2845bdr-8-etched.glb",
      "model_3d_step": "tl2845bdr-8-etched.step",
      "model_3d_step_plain": "tl2845bdr-8.step",
      "lbr": "tl2845bdr-8.lbr"
    },
    "distributor_links": {
      "lcsc": "C485100"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T09:38:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output for loop compensation; it can source or sink up to 0.5 mA, and pulling it below two diode drops above ground shuts down the PWM."
      },
      {
        "number": "2",
        "name": "VFB",
        "type": "input",
        "description": "Error amplifier inverting feedback input, regulated to 2.5 V (2.45 to 2.55 V on TL284xB), with a recommended input range of 0 to 5.5 V."
      },
      {
        "number": "3",
        "name": "ISENSE",
        "type": "input",
        "description": "Current-sense comparator input with a 1 V threshold (peak current IS(max) = 1 V/RS), recommended range 0 to 5.5 V; raising it above 1 V shuts down the output."
      },
      {
        "number": "4",
        "name": "RT/CT",
        "type": "passive",
        "description": "Oscillator timing pin for the external RT to VREF and CT to GND, with an oscillator frequency range of 100 to 500 kHz and an input range of 0 to 5.5 V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for all device voltages, and the single-point ground for the timing and bypass capacitors."
      },
      {
        "number": "6",
        "name": "OUTPUT",
        "type": "output",
        "description": "Totem-pole output stage that drives N-channel MOSFETs, with ±1 A absolute maximum output current, 200 mA recommended average output current and 0 to 30 V output voltage; it is low when off."
      },
      {
        "number": "7",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply input with a 30 V maximum, typical UVLO start threshold of 8.4 V and turn-off at 7.6 V for the TLx845B, and a 34 V (typ) limiting voltage at ICC = 25 mA."
      },
      {
        "number": "8",
        "name": "VREF",
        "type": "power_out",
        "description": "Trimmed 5 V reference output (4.95 to 5.05 V for TL284xB at 1 mA) that supplies up to 20 mA and sets the oscillator RT."
      }
    ],
    "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": [
          "extractor flagged: Pin numbers and names come from the 8-pin D package top-view drawing on page 1, which is flattened t; The datasheet gives no explicit pin description for RT/CT. Its function comes from the oscillator se"
        ],
        "pages_sent": 26,
        "cost_usd": 0.182,
        "at": "2026-10-27T09:38:42"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tl2845bdr-8.pdf",
        "pages": 26,
        "sha256": "804a10c86a6d4bdb",
        "source_tier": "mfr"
      },
      "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"
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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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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tl2845bdr-8-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": "d125ca50a778690af289b616a5d5491b2c31a4344f49bf39773befe54bde7778",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  }
}