component
UCC3809DTR-2
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# UCC3809DTR-2++**Texas Instruments** · AC-DC Controllers And Regulators · SOIC-8++UCC3809DTR-2 from Texas Instruments, in a SOIC-8. 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 | FB | input | Summing node for current-sense feedback, optocoupler voltage feedback and slope compensation, compared to a 1V threshold, with an internal 250 ohm NMOS discharging the external filter capacitor during PWM off time. |+| 2 | SS | bidirectional | Soft-start pin charged by an internal 6µA source into the soft-start capacitor, and pulling it below 0.5V inhibits the output driver, turns off REF and reduces IVDD to under 100µA. |+| 3 | RT1 | passive | Timing resistor pin that sets the oscillator positive ramp time Tr = 0.74 x (CT + 27pF) x RT1, with minimum recommended RT1 of 10kΩ. |+| 4 | RT2 | passive | Timing resistor pin that sets the oscillator negative ramp time Tf = 0.74 x (CT + 27pF) x RT2, with minimum recommended RT2 of 4.32kΩ, and connects to timing capacitor CT. |+| 5 | GND | power_in | Reference ground and power ground for all functions. |+| 6 | OUT | output | High current power driver output (0.4A source/0.8A sink peak) for N-channel MOSFETs, with a minimum series gate resistor of 3.9 ohm recommended. |+| 7 | VDD | power_in | Power input shunt regulated at 17.5V (absolute maximum 19V), to be bypassed with a 1µF ceramic capacitor. |+| 8 | REF | power_out | Buffered internal 5V reference output (4.75V to 5.25V), to be bypassed with a 0.47µF ceramic capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `UCC3809DTR-2`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `ucc3809dtr-2-etched.step` / `ucc3809dtr-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc3809dtr-2.step` / `ucc3809dtr-2.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/ucc2809-2) (24 pp, sha256 `7fc852aa75a77966`, retrieved 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (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/ucc3809dtr-2-datasheet.pdf)
page.jsonadded+156@@ -0,0 +1,156 @@+{+ "slug": "ucc3809dtr-2",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "ucc3809dtr-2",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ucc3809dtr-2.kicad_sym",+ "ucc3809dtr-2.kicad_mod",+ "ucc3809dtr-2.glb",+ "ucc3809dtr-2.step",+ "ucc3809dtr-2.lbr",+ "docs/hero.png",+ "docs/ucc3809dtr-2-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "UCC3809DTR-2",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "AC-DC Controllers And Regulators",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ucc2809-2",+ "parts": {+ "symbol": "ucc3809dtr-2.kicad_sym",+ "footprint": "ucc3809dtr-2.kicad_mod",+ "model_3d": "ucc3809dtr-2-etched.glb",+ "model_3d_plain": "ucc3809dtr-2.glb",+ "model_3d_step": "ucc3809dtr-2-etched.step",+ "model_3d_step_plain": "ucc3809dtr-2.step",+ "lbr": "ucc3809dtr-2.lbr"+ },+ "distributor_links": {+ "lcsc": "C3093716",+ "digikey": "296-UCC3809DTR-2TR-ND",+ "mouser": "595-UCC3809DTR-2"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T06:04:54Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-UCC3809DTR-2TR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-UCC3809DTR-2",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "FB",+ "type": "input",+ "description": "Summing node for current-sense feedback, optocoupler voltage feedback and slope compensation, compared to a 1V threshold, with an internal 250 ohm NMOS discharging the external filter capacitor during PWM off time."+ },+ {+ "number": "2",+ "name": "SS",+ "type": "bidirectional",+ "description": "Soft-start pin charged by an internal 6µA source into the soft-start capacitor, and pulling it below 0.5V inhibits the output driver, turns off REF and reduces IVDD to under 100µA."+ },+ {+ "number": "3",+ "name": "RT1",+ "type": "passive",+ "description": "Timing resistor pin that sets the oscillator positive ramp time Tr = 0.74 x (CT + 27pF) x RT1, with minimum recommended RT1 of 10kΩ."+ },+ {+ "number": "4",+ "name": "RT2",+ "type": "passive",+ "description": "Timing resistor pin that sets the oscillator negative ramp time Tf = 0.74 x (CT + 27pF) x RT2, with minimum recommended RT2 of 4.32kΩ, and connects to timing capacitor CT."+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Reference ground and power ground for all functions."+ },+ {+ "number": "6",+ "name": "OUT",+ "type": "output",+ "description": "High current power driver output (0.4A source/0.8A sink peak) for N-channel MOSFETs, with a minimum series gate resistor of 3.9 ohm recommended."+ },+ {+ "number": "7",+ "name": "VDD",+ "type": "power_in",+ "description": "Power input shunt regulated at 17.5V (absolute maximum 19V), to be bypassed with a 1µF ceramic capacitor."+ },+ {+ "number": "8",+ "name": "REF",+ "type": "power_out",+ "description": "Buffered internal 5V reference output (4.75V to 5.25V), to be bypassed with a 0.47µF ceramic capacitor."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 24,+ "cost_usd": 0.1811,+ "at": "2026-10-01T06:04:38"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ucc2809-2",+ "pages": 24,+ "sha256": "7fc852aa75a77966",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "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]"+ }+}