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UCC28950PW
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Texas Instruments DC-DC Converters, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+60@@ -0,0 +1,60 @@+# UCC28950PW++**Texas Instruments** · DC-DC Converters · TSSOP-24++UCC28950PW from Texas Instruments, in a TSSOP-24. 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 | VREF | power_in | Provides a 5 V, ±1.5%, 20 mA reference voltage output. |+| 2 | EA+ | input | Error amplifier noninverting input. |+| 3 | EA- | input | Error amplifier inverting input. |+| 4 | COMP | bidirectional | Error amplifier output and input to the PWM comparator. |+| 5 | SS/EN | input | Sets soft-start programming, device enable and hiccup mode protection circuit. |+| 6 | DELAB | input | Sets the dead-time delay between OUTA and OUTB. |+| 7 | DELCD | input | Sets the dead-time delay between OUTC and OUTD. |+| 8 | DELEF | input | Sets the delay time between OUTA and OUTF, and between OUTB and OUTE. |+| 9 | TMIN | input | Sets the minimum duty cycle in burst mode. |+| 10 | RT | input | Sets the oscillator frequency and the leader or follower mode. |+| 11 | RSUM | input | Sets the slope compensation and selects voltage mode or peak current mode. |+| 12 | DCM | input | Sets the DCM threshold. |+| 13 | ADELEF | input | Programs the delay time between primary side and secondary side switches, tAFSET and tBESET. |+| 14 | ADEL | input | Programs the primary switch dead time over the CS voltage range, tABSET and tCDSET. |+| 15 | CS | input | Current sense input for cycle-by-cycle overcurrent protection and adaptive delay functions. |+| 16 | SYNC | bidirectional | Synchronization output from the leader controller to the input of the follower controller. |+| 17 | OUTF | output | Primary switching output with 0.2 A sink and source capability. |+| 18 | OUTE | output | Primary switching output with 0.2 A sink and source capability. |+| 19 | OUTD | output | Primary switching output with 0.2 A sink and source capability. |+| 20 | OUTC | output | Primary switching output with 0.2 A sink and source capability. |+| 21 | OUTB | output | Primary switching output with 0.2 A sink and source capability. |+| 22 | OUTA | output | Primary switching output with 0.2 A sink and source capability. |+| 23 | VDD | power_in | Bias supply input for the controller. |+| 24 | GND | power_in | Ground; all signals are referenced to this node. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-24 |+| Category | Power Management (PMIC) |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `UCC28950PW`+- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`+- 3D model: TSSOP-24 (KiCad packages3D, STEP)+- 3D model files: `ucc28950pw-etched.step` / `ucc28950pw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc28950pw.step` / `ucc28950pw.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/lit/ds/symlink/ucc28950.pdf) (80 pp, sha256 `a765d09f25ef27f8`, retrieved 2026-10-08, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/ucc28950pw-datasheet.pdf)
page.jsonadded+295@@ -0,0 +1,295 @@+{+ "slug": "ucc28950pw",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "ucc28950pw",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ucc28950pw.kicad_sym",+ "ucc28950pw.kicad_mod",+ "ucc28950pw.glb",+ "ucc28950pw.step",+ "ucc28950pw.lbr",+ "docs/hero.png",+ "docs/ucc28950pw-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ucc28950pw-hero.glb",+ "ucc28950pw-hero.overlay.json"+ ],+ "component": {+ "mpn": "UCC28950PW",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-24",+ "pin_count": 24,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/lit/ds/symlink/ucc28950.pdf",+ "parts": {+ "symbol": "ucc28950pw.kicad_sym",+ "footprint": "ucc28950pw.kicad_mod",+ "model_3d": "ucc28950pw-hero.glb",+ "model_3d_plain": "ucc28950pw.glb",+ "model_3d_step": "ucc28950pw-etched.step",+ "model_3d_step_plain": "ucc28950pw.step",+ "lbr": "ucc28950pw.lbr"+ },+ "distributor_links": {+ "lcsc": "C1530014",+ "digikey": "296-34760-5-ND",+ "mouser": "595-UCC28950PW"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T14:37:56Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-34760-5-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-UCC28950PW",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VREF",+ "type": "power_in",+ "description": "Provides a 5 V, ±1.5%, 20 mA reference voltage output."+ },+ {+ "number": "2",+ "name": "EA+",+ "type": "input",+ "description": "Error amplifier noninverting input."+ },+ {+ "number": "3",+ "name": "EA-",+ "type": "input",+ "description": "Error amplifier inverting input."+ },+ {+ "number": "4",+ "name": "COMP",+ "type": "bidirectional",+ "description": "Error amplifier output and input to the PWM comparator."+ },+ {+ "number": "5",+ "name": "SS/EN",+ "type": "input",+ "description": "Sets soft-start programming, device enable and hiccup mode protection circuit."+ },+ {+ "number": "6",+ "name": "DELAB",+ "type": "input",+ "description": "Sets the dead-time delay between OUTA and OUTB."+ },+ {+ "number": "7",+ "name": "DELCD",+ "type": "input",+ "description": "Sets the dead-time delay between OUTC and OUTD."+ },+ {+ "number": "8",+ "name": "DELEF",+ "type": "input",+ "description": "Sets the delay time between OUTA and OUTF, and between OUTB and OUTE."+ },+ {+ "number": "9",+ "name": "TMIN",+ "type": "input",+ "description": "Sets the minimum duty cycle in burst mode."+ },+ {+ "number": "10",+ "name": "RT",+ "type": "input",+ "description": "Sets the oscillator frequency and the leader or follower mode."+ },+ {+ "number": "11",+ "name": "RSUM",+ "type": "input",+ "description": "Sets the slope compensation and selects voltage mode or peak current mode."+ },+ {+ "number": "12",+ "name": "DCM",+ "type": "input",+ "description": "Sets the DCM threshold."+ },+ {+ "number": "13",+ "name": "ADELEF",+ "type": "input",+ "description": "Programs the delay time between primary side and secondary side switches, tAFSET and tBESET."+ },+ {+ "number": "14",+ "name": "ADEL",+ "type": "input",+ "description": "Programs the primary switch dead time over the CS voltage range, tABSET and tCDSET."+ },+ {+ "number": "15",+ "name": "CS",+ "type": "input",+ "description": "Current sense input for cycle-by-cycle overcurrent protection and adaptive delay functions."+ },+ {+ "number": "16",+ "name": "SYNC",+ "type": "bidirectional",+ "description": "Synchronization output from the leader controller to the input of the follower controller."+ },+ {+ "number": "17",+ "name": "OUTF",+ "type": "output",+ "description": "Primary switching output with 0.2 A sink and source capability."+ },+ {+ "number": "18",+ "name": "OUTE",+ "type": "output",+ "description": "Primary switching output with 0.2 A sink and source capability."+ },+ {+ "number": "19",+ "name": "OUTD",+ "type": "output",+ "description": "Primary switching output with 0.2 A sink and source capability."+ },+ {+ "number": "20",+ "name": "OUTC",+ "type": "output",+ "description": "Primary switching output with 0.2 A sink and source capability."+ },+ {+ "number": "21",+ "name": "OUTB",+ "type": "output",+ "description": "Primary switching output with 0.2 A sink and source capability."+ },+ {+ "number": "22",+ "name": "OUTA",+ "type": "output",+ "description": "Primary switching output with 0.2 A sink and source capability."+ },+ {+ "number": "23",+ "name": "VDD",+ "type": "power_in",+ "description": "Bias supply input for the controller."+ },+ {+ "number": "24",+ "name": "GND",+ "type": "power_in",+ "description": "Ground; all signals are referenced to this node."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The datasheet pin table lists VDD (pin 23) as type 'I'. It is classified here as power_in because it; The datasheet covers UCC28950 and UCC28951, and the pinout is shared. The orderable addendum (page 7; Pin descriptions are condensed from the page 3 pin table and keep its section references out of the "+ ],+ "pages_sent": 7,+ "cost_usd": 0.0545,+ "at": "2026-10-08T14:37:31"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/ucc28950.pdf",+ "pages": 80,+ "sha256": "a765d09f25ef27f8",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 24,+ "described": 24,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "ucc28950pw.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 7.8,+ 0.97+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "706322f42d9793ebf28d5b80100a68bfa8769998a00b78acadf7af937fc1454f",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ucc28950pw-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 7.8,+ 0.97+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "905dbbff0f2f8f27a374d4f5345e3a9408b217fc7c848879674de8adde89fdf2",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}