component
UCC21540ADWR
Public Made by Adomby adom
Texas Instruments Isolators - Gate Drivers, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# UCC21540ADWR++**Texas Instruments** · Isolators - Gate Drivers · SOIC-16-300mil++UCC21540ADWR from Texas Instruments, in a SOIC-16-300mil. 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 | INA | input | Input signal for channel A with TTL/CMOS compatible threshold and 0.8V input hysteresis; internally pulled low when open circuit. |+| 2 | INB | input | Input signal for channel B with TTL/CMOS compatible threshold and 0.8V input hysteresis; internally pulled low when open circuit. |+| 3 | VCCI | power_in | Primary side power supply voltage with 3V to 18V operating range; decouple locally to GND with low ESR/ESL capacitor. |+| 4 | GND | power_in | Primary side ground reference; all primary side signals referenced to this ground. |+| 5 | DIS | input | Disable input; when set high disables both driver outputs; when set low enables outputs; recommended 1nF bypass capacitor for noise immunity. |+| 6 | DT | input | Dead time programming pin; connect to VCCI to disable dead time function or place resistor RDT between DT and GND to program dead time using DT(ns) = 10 × RDT(kΩ); recommended ≤1nF bypass capacitor. |+| 7 | NC | unconnected | No internal connection; can be left floating or connected to VCCI or GND. |+| 8 | VCCI | power_in | Primary side power supply voltage internally shorted to pin 3; preferred to bypass pins 3-4 rather than pins 8-4. |+| 9 | VSSB | power_in | Secondary side ground for driver B; ground reference for secondary side channel B. |+| 10 | OUTB | output | Driver B output for controlling B channel FET or IGBT gate; peak sink current 6A maximum. |+| 11 | VDDB | power_in | Secondary side power supply for driver B with 6.5V to 25V operating range; decouple locally to VSSB with low ESR/ESL capacitor. |+| 12 | NC | unconnected | No internal connection; recommended to leave floating to maximize creepage distance from driver A to driver B. |+| 13 | NC | unconnected | No internal connection; recommended to leave floating to maximize creepage distance from driver A to driver B; this pin is removed in SOIC-14 DWK package. |+| 14 | VSSA | power_in | Secondary side ground for driver A; ground reference for secondary side channel A. |+| 15 | OUTA | output | Driver A output for controlling A channel FET or IGBT gate; peak source current 4A maximum. |+| 16 | VDDA | power_in | Secondary side power supply for driver A with 6.5V to 25V operating range; decouple locally to VSSA with low ESR/ESL capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16-300mil |+| Category | Power Management (PMIC) |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `UCC21540ADWR`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)+- 3D model files: `ucc21540adwr-etched.step` / `ucc21540adwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc21540adwr.step` / `ucc21540adwr.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/ucc21540a) (54 pp, sha256 `436d808da2107def`, retrieved 2026-10-05, 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 0.3`, 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/ucc21540adwr-datasheet.pdf)
page.jsonadded+205@@ -0,0 +1,205 @@+{+ "slug": "ucc21540adwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Isolators - Gate Drivers, SOIC-16-300mil. 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internally pulled low when open circuit."+ },+ {+ "number": "2",+ "name": "INB",+ "type": "input",+ "description": "Input signal for channel B with TTL/CMOS compatible threshold and 0.8V input hysteresis; internally pulled low when open circuit."+ },+ {+ "number": "3",+ "name": "VCCI",+ "type": "power_in",+ "description": "Primary side power supply voltage with 3V to 18V operating range; decouple locally to GND with low ESR/ESL capacitor."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Primary side ground reference; all primary side signals referenced to this ground."+ },+ {+ "number": "5",+ "name": "DIS",+ "type": "input",+ "description": "Disable input; when set high disables both driver outputs; when set low enables outputs; recommended 1nF bypass capacitor for noise immunity."+ },+ {+ "number": "6",+ "name": "DT",+ "type": "input",+ "description": "Dead time programming pin; connect to VCCI to disable dead time function or place resistor RDT between DT and GND to program dead time using DT(ns) = 10 × RDT(kΩ); recommended ≤1nF bypass capacitor."+ },+ {+ "number": "7",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; can be left floating or connected to VCCI or GND."+ },+ {+ "number": "8",+ "name": "VCCI",+ "type": "power_in",+ "description": "Primary side power supply voltage internally shorted to pin 3; preferred to bypass pins 3-4 rather than pins 8-4."+ },+ {+ "number": "9",+ "name": "VSSB",+ "type": "power_in",+ "description": "Secondary side ground for driver B; ground reference for secondary side channel B."+ },+ {+ "number": "10",+ "name": "OUTB",+ "type": "output",+ "description": "Driver B output for controlling B channel FET or IGBT gate; peak sink current 6A maximum."+ },+ {+ "number": "11",+ "name": "VDDB",+ "type": "power_in",+ "description": "Secondary side power supply for driver B with 6.5V to 25V operating range; decouple locally to VSSB with low ESR/ESL capacitor."+ },+ {+ "number": "12",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; recommended to leave floating to maximize creepage distance from driver A to driver B."+ },+ {+ "number": "13",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; recommended to leave floating to maximize creepage distance from driver A to driver B; this pin is removed in SOIC-14 DWK package."+ },+ {+ "number": "14",+ "name": "VSSA",+ "type": "power_in",+ "description": "Secondary side ground for driver A; ground reference for secondary side channel A."+ },+ {+ "number": "15",+ "name": "OUTA",+ "type": "output",+ "description": "Driver A output for controlling A channel FET or IGBT gate; peak source current 4A maximum."+ },+ {+ "number": "16",+ "name": "VDDA",+ "type": "power_in",+ "description": "Secondary side power supply for driver A with 6.5V to 25V operating range; decouple locally to VSSA with low ESR/ESL 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": 45,+ "cost_usd": 0.3863,+ "at": "2026-10-05T22:47:03"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ucc21540a",+ "pages": 54,+ "sha256": "436d808da2107def",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "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]"+ }+}