← Commit history

Initial commit: component/ucc38084pwr

Ray ·3dcfc79d9a ·18d ago
2 files changed +244
README.mdadded+44
@@ -0,0 +1,44 @@+# UCC38084PWR++**Texas Instruments** · DC-DC Controllers · TSSOP-8++UCC38084PWR from Texas Instruments, in a TSSOP-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 | OUTB | output | Alternating high-current push-pull output stage that drives a power MOSFET gate, rated for 500-mA peak source and 1-A peak sink current and switching at half the oscillator frequency. |+| 2 | GND | power_in | Reference ground and power ground for all functions; due to high currents and high-frequency operation, a low-impedance circuit board ground plane is highly recommended. |+| 3 | RT | input | Oscillator programming pin; an external resistor to GND sets the oscillator frequency, with a recommended timing resistor range of 25 kΩ to 698 kΩ and a nominal RT voltage of 1.5 V (1.2 V to 1.6 V). |+| 4 | CS | input | Current-sense input to the PWM comparator, cycle-by-cycle peak current comparator and overcurrent comparator; exceeding the overcurrent threshold (0.75 V typical) causes a soft-start cycle, and an internal MOSFET discharges the CS filter capacitor. |+| 5 | ISET | input | Current selection for slope compensation; a resistor RSET from ISET to GND programs the slope-compensation ramp, with IRAMP peak equal to 5 × ISET peak. |+| 6 | CTRL | input | Error voltage input to the PWM comparator, with an internal divider ratio of 0.45 to maintain a usable range with the minimum VDD of 4.1 V. |+| 7 | VDD | power_in | Power input connection with an absolute maximum supply voltage of 15 V (IDD < 10 mA); a 1-µF decoupling capacitor to GND is recommended. |+| 8 | OUTA | output | Alternating high-current push-pull output stage that drives a power MOSFET gate, rated for 500-mA peak source and 1-A peak sink current and switching at half the oscillator frequency. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-8 |+| Category | Power Supply Chip |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `UCC38084PWR`+- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`+- 3D model: TSSOP-8 (KiCad packages3D, STEP)+- 3D model files: `ucc38084pwr-etched.step` / `ucc38084pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc38084pwr.step` / `ucc38084pwr.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/ucc38084.pdf) (28 pp, sha256 `19bab60962d5c6f5`, 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/ucc38084pwr-datasheet.pdf)
page.jsonadded+200
@@ -0,0 +1,200 @@+{+  "slug": "ucc38084pwr",+  "version": "0.1.0",+  "type": "component",+  "description": "Texas Instruments DC-DC Controllers, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "power supply chip",+    "ucc38084pwr",+    "factory-2.0.0",+    "extractor-text"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "ucc38084pwr.kicad_sym",+    "ucc38084pwr.kicad_mod",+    "ucc38084pwr.glb",+    "ucc38084pwr.step",+    "ucc38084pwr.lbr",+    "docs/hero.png",+    "docs/ucc38084pwr-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html",+    "ucc38084pwr-hero.glb",+    "ucc38084pwr-hero.overlay.json"+  ],+  "component": {+    "mpn": "UCC38084PWR",+    "manufacturer": "Texas Instruments",+    "package": "TSSOP-8",+    "pin_count": 8,+    "category": "Power Supply Chip",+    "subcategory": "DC-DC Controllers",+    "datasheet": "https://www.ti.com/lit/ds/symlink/ucc38084.pdf",+    "parts": {+      "symbol": "ucc38084pwr.kicad_sym",+      "footprint": "ucc38084pwr.kicad_mod",+      "model_3d": "ucc38084pwr-hero.glb",+      "model_3d_plain": "ucc38084pwr.glb",+      "model_3d_step": "ucc38084pwr-etched.step",+      "model_3d_step_plain": "ucc38084pwr.step",+      "lbr": "ucc38084pwr.lbr"+    },+    "distributor_links": {+      "lcsc": "C2658002",+      "digikey": "296-44035-2-ND",+      "mouser": "595-UCC38084PWR"+    },+    "distributor_check": {+      "checked_at": "2026-10-08T15:52:15Z",+      "source": "Component Ocean /api/assign-pns",+      "digikey": {+        "pn": "296-44035-2-ND",+        "status": "found",+        "lifecycle": "Active"+      },+      "mouser": {+        "pn": "595-UCC38084PWR",+        "status": "found"+      }+    },+    "pins": [+      {+        "number": "1",+        "name": "OUTB",+        "type": "output",+        "description": "Alternating high-current push-pull output stage that drives a power MOSFET gate, rated for 500-mA peak source and 1-A peak sink current and switching at half the oscillator frequency."+      },+      {+        "number": "2",+        "name": "GND",+        "type": "power_in",+        "description": "Reference ground and power ground for all functions; due to high currents and high-frequency operation, a low-impedance circuit board ground plane is highly recommended."+      },+      {+        "number": "3",+        "name": "RT",+        "type": "input",+        "description": "Oscillator programming pin; an external resistor to GND sets the oscillator frequency, with a recommended timing resistor range of 25 kΩ to 698 kΩ and a nominal RT voltage of 1.5 V (1.2 V to 1.6 V)."+      },+      {+        "number": "4",+        "name": "CS",+        "type": "input",+        "description": "Current-sense input to the PWM comparator, cycle-by-cycle peak current comparator and overcurrent comparator; exceeding the overcurrent threshold (0.75 V typical) causes a soft-start cycle, and an internal MOSFET discharges the CS filter capacitor."+      },+      {+        "number": "5",+        "name": "ISET",+        "type": "input",+        "description": "Current selection for slope compensation; a resistor RSET from ISET to GND programs the slope-compensation ramp, with IRAMP peak equal to 5 × ISET peak."+      },+      {+        "number": "6",+        "name": "CTRL",+        "type": "input",+        "description": "Error voltage input to the PWM comparator, with an internal divider ratio of 0.45 to maintain a usable range with the minimum VDD of 4.1 V."+      },+      {+        "number": "7",+        "name": "VDD",+        "type": "power_in",+        "description": "Power input connection with an absolute maximum supply voltage of 15 V (IDD < 10 mA); a 1-µF decoupling capacitor to GND is recommended."+      },+      {+        "number": "8",+        "name": "OUTA",+        "type": "output",+        "description": "Alternating high-current push-pull output stage that drives a power MOSFET gate, rated for 500-mA peak source and 1-A peak sink current and switching at half the oscillator frequency."+      }+    ],+    "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 PW pinout was taken from the 'PW PACKAGE (TOP VIEW)' drawing on page 2, which has no pin numbers; Internal inconsistency: the TSSOP layout note on page 10 says 'RT and OUTB (pins 6 and 8)', which co; Pin functions and limits were taken from the D/P terminal-function table (page 5) and detailed pin d"+        ],+        "pages_sent": 15,+        "cost_usd": 0.0905,+        "at": "2026-10-08T15:52:00"+      },+      "datasheet": {+        "url": "https://www.ti.com/lit/ds/symlink/ucc38084.pdf",+        "pages": 28,+        "sha256": "19bab60962d5c6f5",+        "source_tier": "mfr"+      },+      "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"+    },+    "models_3d": [+      {+        "file": "ucc38084pwr.step",+        "role": "plain",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin = pad-pattern centre",+        "seat": "z = 0",+        "extents_mm": [+          4.9,+          3,+          1.1+        ],+        "zmin_mm": 0,+        "centre_offset_mm": 0,+        "footprint_binding": "identity",+        "sha256": "cf28a51742b2e31065e201d1b313207140cbfb49062efd938788f7a310d02738",+        "checked": "2026-10-08",+        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+      },+      {+        "file": "ucc38084pwr-etched.step",+        "role": "eda",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin = pad-pattern centre",+        "seat": "z = 0",+        "extents_mm": [+          4.9,+          3,+          1.1+        ],+        "zmin_mm": 0,+        "centre_offset_mm": 0,+        "footprint_binding": "identity",+        "sha256": "d15e013dedf1cd6354da8f52eafe948efba05c992e97e62e5c178b695bc95234",+        "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]"+  }+}\ No newline at end of file