component
UCC28951PWR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+60@@ -0,0 +1,60 @@+# UCC28951PWR++**Texas Instruments** · DC-DC Converters · TSSOP-24++UCC28951PWR 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 5V, ±1.5%, 20mA 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 | Soft-start programming, device enable, and hiccup mode protection circuit input. |+| 6 | DELAB | input | Dead-time delay programming input between OUTA and OUTB. |+| 7 | DELCD | input | Dead-time delay programming input between OUTC and OUTD. |+| 8 | DELEF | input | Delay-time programming input between OUTA to OUTF and OUTB to OUTE. |+| 9 | TMIN | input | Minimum duty cycle programming input for burst mode operation. |+| 10 | RT | input | Oscillator frequency programming and leader or follower mode setting input. |+| 11 | RSUM | input | Slope compensation programming and voltage mode or peak current mode setting input. |+| 12 | DCM | input | DCM threshold setting input. |+| 13 | ADELEF | input | Delay-time programming input between primary side and secondary side switches, tAFSET and tBESET. |+| 14 | ADEL | input | Dead-time programming input for primary switches over 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 leader controller to input of follower controller. |+| 17 | OUTF | output | Primary switching output with 0.2A sink and source capability. |+| 18 | OUTE | output | Primary switching output with 0.2A sink and source capability. |+| 19 | OUTD | output | Primary switching output with 0.2A sink and source capability. |+| 20 | OUTC | output | Primary switching output with 0.2A sink and source capability. |+| 21 | OUTB | output | Primary switching output with 0.2A sink and source capability. |+| 22 | OUTA | output | Primary switching output with 0.2A sink and source capability. |+| 23 | VDD | power_in | Bias supply input with recommended operating range 8V to 17V. |+| 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: `UCC28951PWR`+- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`+- 3D model: TSSOP-24 (KiCad packages3D, STEP)+- 3D model files: `ucc28951pwr-etched.step` / `ucc28951pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc28951pwr.step` / `ucc28951pwr.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/ucc28951.pdf) (80 pp, sha256 `a765d09f25ef27f8`, retrieved 2026-10-02, tier: manufacturer)+- **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/ucc28951pwr-datasheet.pdf)
page.jsonadded+253@@ -0,0 +1,253 @@+{+ "slug": "ucc28951pwr",+ "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)",+ "ucc28951pwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ucc28951pwr.kicad_sym",+ "ucc28951pwr.kicad_mod",+ "ucc28951pwr.glb",+ "ucc28951pwr.step",+ "ucc28951pwr.lbr",+ "docs/hero.png",+ "docs/ucc28951pwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ucc28951pwr-hero.glb",+ "ucc28951pwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "UCC28951PWR",+ "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/ucc28951.pdf",+ "parts": {+ "symbol": "ucc28951pwr.kicad_sym",+ "footprint": "ucc28951pwr.kicad_mod",+ "model_3d": "ucc28951pwr-hero.glb",+ "model_3d_plain": "ucc28951pwr.glb",+ "model_3d_step": "ucc28951pwr-etched.step",+ "model_3d_step_plain": "ucc28951pwr.step",+ "lbr": "ucc28951pwr.lbr"+ },+ "distributor_links": {+ "lcsc": "C1849524",+ "digikey": "296-UCC28951PWRTR-ND",+ "mouser": "595-UCC28951PWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-02T00:51:15Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-UCC28951PWRTR-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-UCC28951PWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VREF",+ "type": "power_in",+ "description": "Provides 5V, ±1.5%, 20mA 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": "Soft-start programming, device enable, and hiccup mode protection circuit input."+ },+ {+ "number": "6",+ "name": "DELAB",+ "type": "input",+ "description": "Dead-time delay programming input between OUTA and OUTB."+ },+ {+ "number": "7",+ "name": "DELCD",+ "type": "input",+ "description": "Dead-time delay programming input between OUTC and OUTD."+ },+ {+ "number": "8",+ "name": "DELEF",+ "type": "input",+ "description": "Delay-time programming input between OUTA to OUTF and OUTB to OUTE."+ },+ {+ "number": "9",+ "name": "TMIN",+ "type": "input",+ "description": "Minimum duty cycle programming input for burst mode operation."+ },+ {+ "number": "10",+ "name": "RT",+ "type": "input",+ "description": "Oscillator frequency programming and leader or follower mode setting input."+ },+ {+ "number": "11",+ "name": "RSUM",+ "type": "input",+ "description": "Slope compensation programming and voltage mode or peak current mode setting input."+ },+ {+ "number": "12",+ "name": "DCM",+ "type": "input",+ "description": "DCM threshold setting input."+ },+ {+ "number": "13",+ "name": "ADELEF",+ "type": "input",+ "description": "Delay-time programming input between primary side and secondary side switches, tAFSET and tBESET."+ },+ {+ "number": "14",+ "name": "ADEL",+ "type": "input",+ "description": "Dead-time programming input for primary switches over 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 leader controller to input of follower controller."+ },+ {+ "number": "17",+ "name": "OUTF",+ "type": "output",+ "description": "Primary switching output with 0.2A sink and source capability."+ },+ {+ "number": "18",+ "name": "OUTE",+ "type": "output",+ "description": "Primary switching output with 0.2A sink and source capability."+ },+ {+ "number": "19",+ "name": "OUTD",+ "type": "output",+ "description": "Primary switching output with 0.2A sink and source capability."+ },+ {+ "number": "20",+ "name": "OUTC",+ "type": "output",+ "description": "Primary switching output with 0.2A sink and source capability."+ },+ {+ "number": "21",+ "name": "OUTB",+ "type": "output",+ "description": "Primary switching output with 0.2A sink and source capability."+ },+ {+ "number": "22",+ "name": "OUTA",+ "type": "output",+ "description": "Primary switching output with 0.2A sink and source capability."+ },+ {+ "number": "23",+ "name": "VDD",+ "type": "power_in",+ "description": "Bias supply input with recommended operating range 8V to 17V."+ },+ {+ "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-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 7,+ "cost_usd": 0.0942,+ "at": "2026-10-02T00:50:55"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/ucc28951.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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}