UC2846N

{
  "slug": "uc2846n",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments AC-DC Controllers And Regulators, PDIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "uc2846n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uc2846n.kicad_sym",
    "uc2846n.kicad_mod",
    "uc2846n.glb",
    "uc2846n.step",
    "uc2846n.lbr",
    "docs/hero.png",
    "docs/uc2846n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uc2846n-hero.glb",
    "uc2846n-hero.overlay.json",
    "uc2846n-etched.glb"
  ],
  "component": {
    "mpn": "UC2846N",
    "manufacturer": "Texas Instruments",
    "package": "PDIP-16",
    "pin_count": 16,
    "category": "Power Management (PMIC)",
    "subcategory": "AC-DC Controllers And Regulators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/uc3846",
    "parts": {
      "symbol": "uc2846n.kicad_sym",
      "footprint": "uc2846n.kicad_mod",
      "model_3d": "uc2846n-hero.glb",
      "model_3d_plain": "uc2846n-etched.glb",
      "model_3d_step": "uc2846n-etched.step",
      "model_3d_step_plain": "uc2846n.step",
      "lbr": "uc2846n.lbr"
    },
    "distributor_links": {
      "lcsc": "C701461",
      "digikey": "296-11190-5-ND",
      "mouser": "595-UC2846N"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T20:59:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-11190-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-UC2846N",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C/S SS",
        "type": "input",
        "description": "Current limit/soft-start programming pin, with a maximum soft-start sink current of 50 mA per the absolute maximum ratings."
      },
      {
        "number": "2",
        "name": "VREF",
        "type": "power_in",
        "description": "5.1-V reference voltage output that requires an external capacitor of 1 µF to 2.2 µF (2.2 µF nominal) and has a maximum reference output current of -30 mA."
      },
      {
        "number": "3",
        "name": "C/S-",
        "type": "input",
        "description": "Current sense comparator inverting input; analog inputs are limited to -0.3 V to +VIN and the maximum differential current-sense signal is 1.2 V."
      },
      {
        "number": "4",
        "name": "C/S+",
        "type": "input",
        "description": "Current sense comparator non-inverting input; analog inputs are limited to -0.3 V to +VIN and the maximum differential current-sense signal is 1.2 V."
      },
      {
        "number": "5",
        "name": "E/A+",
        "type": "input",
        "description": "Error amplifier non-inverting input (the pin table misprints this as inverting), with a common-mode range of 0 V to VIN - 2 V."
      },
      {
        "number": "6",
        "name": "E/A-",
        "type": "input",
        "description": "Error amplifier inverting input, with analog inputs limited to -0.3 V to +VIN and a common-mode range of 0 V to VIN - 2 V."
      },
      {
        "number": "7",
        "name": "COMP",
        "type": "bidirectional",
        "description": "Error amplifier output and input to the PWM comparator, with an absolute maximum output current of -5 mA."
      },
      {
        "number": "8",
        "name": "CT",
        "type": "input",
        "description": "Oscillator frequency programming capacitor pin; CT together with RT sets the oscillator frequency and output deadtime."
      },
      {
        "number": "9",
        "name": "RT",
        "type": "input",
        "description": "Oscillator frequency programming resistor pin (labelled CR in the pin table); oscillator charging current is rated at a maximum of 5 mA."
      },
      {
        "number": "10",
        "name": "Sync",
        "type": "bidirectional",
        "description": "Synchronization I/O for a master controller output or slave controller input; sync output current is limited to -5 mA and the sync output swings between 2.3-2.5 V low and 3.9-4.35 V high."
      },
      {
        "number": "11",
        "name": "A Out",
        "type": "output",
        "description": "PWM drive signal output A, complementary to output B (pin 14); output current source or sink is rated at 500 mA maximum."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference node to which all signals are referenced."
      },
      {
        "number": "13",
        "name": "VC",
        "type": "power_in",
        "description": "Bias supply input for the output stage, with a collector supply voltage limit of 40 V and to be connected through a resistance directly to VIN."
      },
      {
        "number": "14",
        "name": "B Out",
        "type": "output",
        "description": "PWM drive signal output B, complementary to output A (pin 11); output current source or sink is rated at 500 mA maximum."
      },
      {
        "number": "15",
        "name": "VIN",
        "type": "power_in",
        "description": "Bias supply input with a supply voltage limit of 40 V, decoupled with low-ESR ceramic capacitance placed as close as possible to GND."
      },
      {
        "number": "16",
        "name": "Shutdown",
        "type": "input",
        "description": "External shutdown signal input; a signal greater than 350 mV latches the outputs off, with analog inputs limited to -0.3 V to +VIN."
      }
    ],
    "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: The pin function table lists both E/A+ (pin 5) and E/A- (pin 6) as 'Error amplifier inverting input'; The pin table names pin 9 'CR' while the pinout figure and layout text use 'RT'. Recorded as RT; bot; The pin table note reads 'Pin11 and P14 are complementary', which is a typo for pin 14. Interpreted "
        ],
        "pages_sent": 24,
        "cost_usd": 0.0994,
        "at": "2026-10-15T20:59:28"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/uc3846",
        "pages": 24,
        "sha256": "0d1e2750f80a16be",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uc2846n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ff995b1317b949effcdfc373e5c94b0dcd5870a35117a6a10f4bfac9b2fcae7c",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}