PM8800A

{
  "slug": "pm8800a",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics AC-DC Controllers & Regulators, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "pm8800a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pm8800a.kicad_sym",
    "pm8800a.kicad_mod",
    "pm8800a.glb",
    "pm8800a.step",
    "pm8800a.lbr",
    "docs/hero.png",
    "docs/pm8800a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pm8800a-hero.glb",
    "pm8800a-hero.overlay.json",
    "pm8800a-etched.glb"
  ],
  "component": {
    "mpn": "PM8800A",
    "manufacturer": "STMicroelectronics",
    "package": "HTSSOP-16-EP",
    "pin_count": 17,
    "category": "Power Management ICs",
    "subcategory": "AC-DC Controllers & Regulators",
    "datasheet": "https://www.st.com/resource/en/datasheet/pm8800a.pdf",
    "parts": {
      "symbol": "pm8800a.kicad_sym",
      "footprint": "pm8800a.kicad_mod",
      "model_3d": "pm8800a-hero.glb",
      "model_3d_plain": "pm8800a-etched.glb",
      "model_3d_step": "pm8800a-etched.step",
      "model_3d_step_plain": "pm8800a.step",
      "lbr": "pm8800a.lbr"
    },
    "distributor_links": {
      "lcsc": "C222238",
      "digikey": "497-16438-ND",
      "mouser": "511-PM8800A"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T18:35:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-16438-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "511-PM8800A",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RT",
        "type": "input",
        "description": "Oscillator timing resistor pin to AGND that sets the oscillator frequency and also accepts narrow ac-coupled synchronization pulses from an external clock."
      },
      {
        "number": "2",
        "name": "SS",
        "type": "passive",
        "description": "Soft-start input where an external capacitor to AGND and an internal 10 µA current source set the soft-start ramp rate and the hiccup timer on overcurrent."
      },
      {
        "number": "3",
        "name": "AUXII",
        "type": "input",
        "description": "Auxiliary source enable pin used to power up the DC/DC section only from the external source; the resistor to the external source sets whether it prevails over PoE (absolute max -0.3 to 100 V to AGND)."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "System high potential input, the most positive input potential, being the diode OR of the PoE line and auxiliary sources (absolute max -0.3 to 100 V to VSS)."
      },
      {
        "number": "5",
        "name": "RCLASS",
        "type": "passive",
        "description": "Classification resistor pin; connect a classification programming resistor between this pin and VSS (absolute max -0.3 to 3.6 V to VSS)."
      },
      {
        "number": "6",
        "name": "AUXI_IRL",
        "type": "input",
        "description": "In-rush current limit and auxiliary source enable pin; a resistor to VSS sets the inrush current limit, and pulling it up to the auxiliary source changes the UVLO settings (absolute max -0.3 to 100 V to VSS)."
      },
      {
        "number": "7",
        "name": "DCCL",
        "type": "passive",
        "description": "DC current limit pin where a resistor to VSS sets the interface current limit, possibly above the IEEE 802.3af limit, and which is left open for standard 802.3af applications."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "System low potential input."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "System return for the PWM converter and drain of the internal hot-swap power MOSFET (absolute max -0.3 to 100 V to VSS)."
      },
      {
        "number": "10",
        "name": "GD",
        "type": "output",
        "description": "Output of the PWM controller, the external power MOSFET gate driver output (absolute max -0.3 to 15 V to AGND)."
      },
      {
        "number": "11",
        "name": "VCC",
        "type": "power_out",
        "description": "Output of the internal high voltage regulator, which switches off when an auxiliary winding raises this pin above the regulation set point (absolute max -0.3 to 15 V to AGND)."
      },
      {
        "number": "12",
        "name": "nPGD",
        "type": "output",
        "description": "Active-low power good signal whose high-to-low transition indicates inrush is complete, the hot-swap MOSFET is fully closed and the SMPS is activated (absolute max -0.3 to 15 V to AGND)."
      },
      {
        "number": "13",
        "name": "CS",
        "type": "input",
        "description": "Current sense input for current mode control and overcurrent protection; GD switches low cycle-by-cycle if CS exceeds 0.5 V, with leading edge blanking."
      },
      {
        "number": "14",
        "name": "COMP",
        "type": "output",
        "description": "Error amplifier output and PWM input, with an internal 2.5 kΩ pull-up that may bias an opto-coupler transistor."
      },
      {
        "number": "15",
        "name": "VFB",
        "type": "input",
        "description": "Inverting input of the internal error amplifier with the non-inverting input at an internal 1.25 V reference; ground to AGND if not used."
      },
      {
        "number": "16",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog PWM supply return for sensitive analog circuitry including the SMPS current limit circuit; must be connected to GND to improve noise immunity."
      },
      {
        "number": "17",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 types for SS, RCLASS, DCCL, AUXII, AUXI_IRL and EP are inferred from function descriptions, not ; The exposed pad has no pin number in the datasheet, so it is labelled EP."
        ],
        "pages_sent": 9,
        "cost_usd": 0.0891,
        "at": "2026-10-31T18:34:54"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/pm8800a.pdf",
        "pages": 35,
        "sha256": "2e57c2a0bb56d01b",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 17,
        "described": 17,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "pm8800a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7982746831c0bd23f4690608869ad67776faae5c762fb0376666126a3998921b",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pm8800a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ae85c8bb41a8387106fdb248d48a9c38f37f40fc9b7d205d4026db09cc25498b",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "HTSSOP16 (Exposed Pad)",
      "source_page": 33,
      "D": {
        "nom_mm": 5.0,
        "range_mm": [
          4.9,
          5.1
        ]
      },
      "E1": {
        "nom_mm": 4.4,
        "range_mm": [
          4.3,
          4.5
        ]
      },
      "E": {
        "nom_mm": 6.4,
        "range_mm": [
          6.2,
          6.6
        ]
      },
      "e": {
        "nom_mm": 0.65,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.2,
        "range_mm": [
          null,
          1.2
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "pm8800a.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}