SG3525ANG

{
  "schema_version": 1,
  "type": "component",
  "slug": "sg3525ang",
  "title": "SG3525ANG",
  "brief": "onsemi AC-DC Controllers and Regulators, DIP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "sg3525ang"
  ],
  "component": {
    "mpn": "SG3525ANG",
    "manufacturer": "onsemi",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "PMIC",
    "subcategory": "AC-DC Controllers and Regulators",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/sg3525an-d.pdf",
    "parts": {
      "symbol": "sg3525ang.kicad_sym",
      "footprint": "sg3525ang.kicad_mod",
      "model_3d": "sg3525ang-etched.glb",
      "model_3d_plain": "sg3525ang.glb",
      "model_3d_step": "sg3525ang-etched.step",
      "model_3d_step_plain": "sg3525ang.step",
      "lbr": "sg3525ang.lbr"
    },
    "distributor_links": {
      "lcsc": "C5286"
    },
    "pins": [
      {
        "number": "1",
        "name": "Inv. Input",
        "type": "input",
        "description": "Inverting input of the internal error amplifier. Common-mode input range includes the +5.1 V reference so no external divider is required. Input bias current ~1 µA typ."
      },
      {
        "number": "2",
        "name": "Noninv. Input",
        "type": "input",
        "description": "Non-inverting input of the internal error amplifier. Common-mode range +1.5 V to +5.2 V. Used to compare feedback against reference or user setpoint."
      },
      {
        "number": "3",
        "name": "Sync",
        "type": "bidirectional",
        "description": "Oscillator sync pin. Allows multiple SG3525A units to be slaved together or a single unit to be synchronized to an external system clock. Sync threshold 1.2-2.8 V; sync input current ~1 mA at 3.5 V."
      },
      {
        "number": "4",
        "name": "OSC. Output",
        "type": "output",
        "description": "Oscillator clock output. Provides the internal clock signal (~3.5 V amplitude, 0.3-1.0 µs pulse width) for external synchronization or monitoring."
      },
      {
        "number": "5",
        "name": "CT",
        "type": "passive",
        "description": "Oscillator timing capacitor connection. External CT (0.001-0.2 µF) sets oscillator charge time together with RT. Frequency range 100 Hz to 400 kHz."
      },
      {
        "number": "6",
        "name": "RT",
        "type": "passive",
        "description": "Oscillator timing resistor connection. External RT (2.0-150 kΩ) sets the oscillator charging current."
      },
      {
        "number": "7",
        "name": "Discharge",
        "type": "passive",
        "description": "Deadtime programming pin. A resistor RD (0-500 Ω) between CT (pin 5) and Discharge (pin 7) sets the oscillator discharge/deadtime."
      },
      {
        "number": "8",
        "name": "Soft-Start",
        "type": "passive",
        "description": "Soft-start capacitor connection. An external capacitor charged by an internal ~50 µA source implements soft-start of the PWM duty cycle. Can also accept a pull-down (~100 µA) to disable outputs."
      },
      {
        "number": "9",
        "name": "Compensation",
        "type": "output",
        "description": "Error amplifier output / PWM comparator input. Compensation network is tied here to shape the loop response. Also accepts a pull-down (~100 µA) to force outputs off."
      },
      {
        "number": "10",
        "name": "Shutdown",
        "type": "input",
        "description": "Active-high shutdown. Positive signal immediately sets the PWM latch (fast turn-off) and enables a 150 µA sink that discharges the soft-start cap for extended shutdowns. Should not be left floating."
      },
      {
        "number": "11",
        "name": "Output A",
        "type": "output",
        "description": "Totem-pole PWM output A. Sources/sinks up to ±100 mA steady state, ±400 mA peak. Alternates with Output B on successive oscillator cycles; NOR-logic low in off-state."
      },
      {
        "number": "12",
        "name": "Ground",
        "type": "power_in",
        "description": "Signal and power ground return for the device."
      },
      {
        "number": "13",
        "name": "VC",
        "type": "power_in",
        "description": "Collector supply for the totem-pole output drivers (Output A/B). Operating range 4.5-35 Vdc; absolute max +40 Vdc. May be tied to VCC or a separate rail suited to the gate/base drive voltage required."
      },
      {
        "number": "14",
        "name": "Output B",
        "type": "output",
        "description": "Totem-pole PWM output B. Complements Output A (alternates each oscillator cycle). Sources/sinks up to ±100 mA steady state, ±400 mA peak."
      },
      {
        "number": "15",
        "name": "VCC",
        "type": "power_in",
        "description": "Main IC supply. Operating range 8.0-35 Vdc; absolute max +40 Vdc. Under-voltage lockout inhibits outputs and soft-start charging when VCC is below ~7 V."
      },
      {
        "number": "16",
        "name": "Vref",
        "type": "power_out",
        "description": "Internal +5.1 V reference output, trimmed to ±1%. Sources up to 20 mA of load current; short-circuit limited to ~80 mA. Bypass to ground with a small ceramic (typ 0.1 µF)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/sg3525an-d.pdf",
        "pages": 10,
        "sha256": "2c62cf949fb3216e",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        0,
        0
      ],
      "corner": "bottom-right",
      "source": "fab-chamfer",
      "derived_from": "DIP-16_W7.62mm@sha256:d9f5f5a3dbebef05",
      "mark": "synthesised"
    },
    "models_3d": [
      {
        "file": "sg3525ang.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sg3525ang-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": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ea887770ef78a8b3d4628e6ea9f942d793e5dd474b71485c212013da6c3899f3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "DIP-16",
      "Category": "PMIC",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sg3525ang"
  ],
  "discovery_pitch": "SG3525ANG (onsemi) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sg3525ang.kicad_sym",
    "sg3525ang.kicad_mod",
    "sg3525ang.glb",
    "sg3525ang.step",
    "sg3525ang-etched.step",
    "sg3525ang.lbr",
    "docs/hero.png",
    "docs/sg3525ang-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "SG3525ANGN",
      "kind": "packaging"
    },
    {
      "mpn": "SG3525ANG",
      "kind": "packaging"
    },
    {
      "mpn": "SG3525ANGDW",
      "kind": "packaging"
    },
    {
      "mpn": "SG3525ANGDWG",
      "kind": "packaging"
    },
    {
      "mpn": "SG3525ANGDWR2",
      "kind": "packaging"
    },
    {
      "mpn": "SG3525ANGDWR2G",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T05:45:10.861Z"
}