component
UCC28740QDRQ1
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# UCC28740QDRQ1++**Texas Instruments** · AC-DC Controllers And Regulators · SOIC-7++UCC28740QDRQ1 from Texas Instruments, in a SOIC-7. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VDD | power_in | Bias-supply input to controller with operating range 9 V to 35 V, UVLO turn-on threshold 21 V, turn-off threshold 7.75 V, and requirement for 0.047 µF bypass capacitor to GND. |+| 2 | VS | power_in | Voltage-sense input connected to auxiliary-winding voltage divider for demagnetization timing feedback, constant-current control, and overvoltage detection with voltage range from −0.75 V to 7 V. |+| 3 | FB | input | Feedback input receiving current signal from optocoupler output transistor with internal 2.5× current divider applied to generate control-law voltage, maximum current ±1.2 mA, and maximum voltage 7 V. |+| 4 | GND | power_in | Ground reference pin for controller analog circuitry and low-side return for gate-drive output requiring close placement to VDD bypass capacitor with short traces to minimize noise. |+| 5 | CS | input | Current-sense input connected to ground-referenced current-sense resistor for peak primary-current monitoring with voltage range −0.5 V to 5 V and thresholds 194 mV minimum to 773 mV maximum. |+| 6 | DRV | output | Gate-drive output for external high-voltage MOSFET with output voltage limited to 14 V, source current 25 mA, continuous sink current 50 mA, and internal leading-edge blanking of 230 ns. |+| 8 | HV | input | High-voltage startup pin rated to 700 V for charging VDD capacitor with startup current of 250 µA typical and run-state leakage current of 0.5 µA maximum. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-7 |+| Category | Power Management (PMIC) |+| Pins | 7 |++## CAD (KiCad official)++- Symbol: `UCC28740QDRQ1`+- Footprint: `Package_SO:SOIC-8-N7_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-7 (KiCad packages3D, STEP)+- 3D model files: `ucc28740qdrq1-etched.step` / `ucc28740qdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc28740qdrq1.step` / `ucc28740qdrq1.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ucc28740-q1) (41 pp, sha256 `325f33333919d922`, retrieved 2026-09-26, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ucc28740qdrq1-datasheet.pdf)
page.jsonadded+149@@ -0,0 +1,149 @@+{+ "slug": "ucc28740qdrq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments AC-DC Controllers And Regulators, SOIC-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "ucc28740qdrq1",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ucc28740qdrq1.kicad_sym",+ "ucc28740qdrq1.kicad_mod",+ "ucc28740qdrq1.glb",+ "ucc28740qdrq1.step",+ "ucc28740qdrq1.lbr",+ "docs/hero.png",+ "docs/ucc28740qdrq1-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "UCC28740QDRQ1",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-7",+ "pin_count": 7,+ "category": "Power Management (PMIC)",+ "subcategory": "AC-DC Controllers And Regulators",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ucc28740-q1",+ "parts": {+ "symbol": "ucc28740qdrq1.kicad_sym",+ "footprint": "ucc28740qdrq1.kicad_mod",+ "model_3d": "ucc28740qdrq1-etched.glb",+ "model_3d_plain": "ucc28740qdrq1.glb",+ "model_3d_step": "ucc28740qdrq1-etched.step",+ "model_3d_step_plain": "ucc28740qdrq1.step",+ "lbr": "ucc28740qdrq1.lbr"+ },+ "distributor_links": {+ "lcsc": "C2869875",+ "digikey": "296-UCC28740QDRQ1TR-ND",+ "mouser": "595-UCC28740QDRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-09-26T23:49:27Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-UCC28740QDRQ1TR-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-UCC28740QDRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VDD",+ "type": "power_in",+ "description": "Bias-supply input to controller with operating range 9 V to 35 V, UVLO turn-on threshold 21 V, turn-off threshold 7.75 V, and requirement for 0.047 µF bypass capacitor to GND."+ },+ {+ "number": "2",+ "name": "VS",+ "type": "power_in",+ "description": "Voltage-sense input connected to auxiliary-winding voltage divider for demagnetization timing feedback, constant-current control, and overvoltage detection with voltage range from −0.75 V to 7 V."+ },+ {+ "number": "3",+ "name": "FB",+ "type": "input",+ "description": "Feedback input receiving current signal from optocoupler output transistor with internal 2.5× current divider applied to generate control-law voltage, maximum current ±1.2 mA, and maximum voltage 7 V."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin for controller analog circuitry and low-side return for gate-drive output requiring close placement to VDD bypass capacitor with short traces to minimize noise."+ },+ {+ "number": "5",+ "name": "CS",+ "type": "input",+ "description": "Current-sense input connected to ground-referenced current-sense resistor for peak primary-current monitoring with voltage range −0.5 V to 5 V and thresholds 194 mV minimum to 773 mV maximum."+ },+ {+ "number": "6",+ "name": "DRV",+ "type": "output",+ "description": "Gate-drive output for external high-voltage MOSFET with output voltage limited to 14 V, source current 25 mA, continuous sink current 50 mA, and internal leading-edge blanking of 230 ns."+ },+ {+ "number": "8",+ "name": "HV",+ "type": "input",+ "description": "High-voltage startup pin rated to 700 V for charging VDD capacitor with startup current of 250 µA typical and run-state leakage current of 0.5 µA maximum."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 41,+ "cost_usd": 0.3731,+ "at": "2026-09-26T23:49:10"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ucc28740-q1",+ "pages": 41,+ "sha256": "325f33333919d922",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 7,+ "described": 7,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}