TL494IDRG

{
  "schema_version": 1,
  "type": "component",
  "slug": "tl494idrg",
  "title": "TL494IDRG",
  "brief": "HANSCHIP semiconductor AC-DC Controllers and Regulators, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "tl494idrg"
  ],
  "component": {
    "mpn": "TL494IDRG",
    "manufacturer": "HANSCHIP semiconductor",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "PMIC",
    "subcategory": "AC-DC Controllers and Regulators",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2209290930_HANSCHIP-semiconductor-TL494IDRG_C5145393.pdf",
    "parts": {
      "symbol": "tl494idrg.kicad_sym",
      "footprint": "tl494idrg.kicad_mod",
      "model_3d": "tl494idrg-etched.glb",
      "model_3d_plain": "tl494idrg.glb",
      "model_3d_step": "tl494idrg-etched.step",
      "model_3d_step_plain": "tl494idrg.step",
      "lbr": "tl494idrg.lbr"
    },
    "distributor_links": {
      "lcsc": "C5145393"
    },
    "pins": [
      {
        "number": "1",
        "name": "1IN+",
        "type": "input",
        "description": "Non-inverting input of error amplifier 1. Common-mode input range is -0.3 V to VCC-2 V."
      },
      {
        "number": "2",
        "name": "1IN-",
        "type": "input",
        "description": "Inverting input of error amplifier 1. Common-mode input range is -0.3 V to VCC-2 V."
      },
      {
        "number": "3",
        "name": "FEEDBACK",
        "type": "bidirectional",
        "description": "Feedback / PWM comparator input. The wired-OR outputs of both error amplifiers appear here and are compared with the oscillator ramp. Input threshold ~4.5 V (zero duty cycle); can source ~2 mA and sink ~0.3 mA."
      },
      {
        "number": "4",
        "name": "DTC",
        "type": "input",
        "description": "Dead-time control input. A voltage on this pin sets the minimum dead-time (maximum duty cycle). 0 V gives maximum duty cycle; ~3.3 V forces zero duty cycle. Input bias current ~10 uA over 0-5.25 V."
      },
      {
        "number": "5",
        "name": "CT",
        "type": "passive",
        "description": "Oscillator timing capacitor connection. External capacitor to GND sets the oscillator frequency together with RT (typ. C=0.01 uF, R=12 k gives ~10 kHz)."
      },
      {
        "number": "6",
        "name": "RT",
        "type": "passive",
        "description": "Oscillator timing resistor connection. External resistor to GND sets the oscillator charging current and, together with CT, the oscillator frequency."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground return."
      },
      {
        "number": "8",
        "name": "C1",
        "type": "output",
        "description": "Collector of output transistor 1 (uncommitted). Rated to 500 mA source/sink (200 mA recommended), VCE(max) 40 V, VCE(sat) ~1.3 V @ 200 mA. Used for push-pull (with C2/pin 11) or single-ended output."
      },
      {
        "number": "9",
        "name": "E1",
        "type": "output",
        "description": "Emitter of output transistor 1 (uncommitted). Tie to GND for common-emitter (open-collector) operation or use as an emitter-follower output."
      },
      {
        "number": "10",
        "name": "E2",
        "type": "output",
        "description": "Emitter of output transistor 2 (uncommitted). Tie to GND for common-emitter (open-collector) operation or use as an emitter-follower output."
      },
      {
        "number": "11",
        "name": "C2",
        "type": "output",
        "description": "Collector of output transistor 2 (uncommitted). Rated to 500 mA source/sink (200 mA recommended), VCE(max) 40 V. Used for push-pull (with C1/pin 8) or single-ended output."
      },
      {
        "number": "12",
        "name": "VCC",
        "type": "power_in",
        "description": "Main supply voltage. Recommended 7-40 V, absolute maximum 41 V. Standby current ~10 mA at 15 V, ~15 mA at 40 V."
      },
      {
        "number": "13",
        "name": "OUTPUT CTRL",
        "type": "input",
        "description": "Output-mode control. Tie to GND for parallel single-ended operation of both output transistors (in phase); tie to VREF (pin 14) for push-pull operation via the pulse-steering flip-flop. Input current ~3.5 mA."
      },
      {
        "number": "14",
        "name": "VREF",
        "type": "power_out",
        "description": "5.0 V internal reference output (4.75-5.25 V @ IO=1 mA, VCC=15 V). Short-circuit current limited to ~50 mA; drift <1 % over -40 to +85 degC."
      },
      {
        "number": "15",
        "name": "2IN-",
        "type": "input",
        "description": "Inverting input of error amplifier 2. Common-mode input range is -0.3 V to VCC-2 V."
      },
      {
        "number": "16",
        "name": "2IN+",
        "type": "input",
        "description": "Non-inverting input of error amplifier 2. Common-mode input range is -0.3 V to VCC-2 V. Typically tied to GND (or VREF) when only one error amp is used."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2209290930_HANSCHIP-semiconductor-TL494IDRG_C5145393.pdf",
        "pages": 9,
        "sha256": "bd4b68a7f8cb0624",
        "source_tier": "lcsc"
      },
      "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": [
        -2.475,
        -4.445
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "tl494idrg.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tl494idrg-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1e1a5b1550e6642b43adf581441f7cafe8442d4716a9d769fc840d38bb2eae2f",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HANSCHIP semiconductor",
      "Package": "SOP-16",
      "Category": "PMIC",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tl494idrg"
  ],
  "discovery_pitch": "TL494IDRG (HANSCHIP semiconductor) 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",
    "tl494idrg.kicad_sym",
    "tl494idrg.kicad_mod",
    "tl494idrg.glb",
    "tl494idrg.step",
    "tl494idrg-etched.step",
    "tl494idrg.lbr",
    "docs/hero.png",
    "docs/tl494idrg-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "TL494CDRG",
      "kind": "unknown"
    },
    {
      "mpn": "TL494CDRG4",
      "kind": "unknown"
    },
    {
      "mpn": "TL494IDRG",
      "kind": "packaging"
    },
    {
      "mpn": "TL494IDRG4",
      "kind": "packaging"
    },
    {
      "mpn": "TL494CPG",
      "kind": "unknown"
    },
    {
      "mpn": "TL494IPG",
      "kind": "unknown"
    },
    {
      "mpn": "TL494CPWRG",
      "kind": "unknown"
    },
    {
      "mpn": "TL494IPWRG",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-25T10:02:09.426Z"
}