component
UCC28C45DR
Public Made by Adomby adom
Texas Instruments TI Switching Controllers, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+134−8@@ -1,13 +1,144 @@ {+ "schema_version": 1,+ "type": "component", "slug": "ucc28c45dr",+ "title": "UCC28C45DR",+ "brief": "Texas Instruments TI Switching Controllers, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "version": "0.1.0",- "type": "component",- "description": "Texas Instruments TI Switching Controllers, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "power management ics", "ucc28c45dr" ],+ "component": {+ "mpn": "UCC28C45DR",+ "manufacturer": "Texas Instruments TI",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Power Management ICs",+ "subcategory": "Switching Controllers",+ "datasheet": "https://www.ti.com/lit/ds/symlink/ucc28c45.pdf",+ "parts": {+ "symbol": "ucc28c45dr.kicad_sym",+ "footprint": "ucc28c45dr.kicad_mod",+ "model_3d": "ucc28c45dr.glb",+ "model_3d_step": "ucc28c45dr.step",+ "lbr": "ucc28c45dr.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "COMP",+ "type": "output",+ "description": "Error-amplifier output for loop compensation. Also used as a control port for opto-isolated secondary-side feedback; internally current-limited so pulling COMP to GND forces zero duty cycle. VOH \u2248 VREF\u22120.2 V; VOL \u2248 0.1 V (typ)."+ },+ {+ "number": "2",+ "name": "FB",+ "type": "input",+ "description": "Inverting input to the internal error amplifier. Non-inverting input is trimmed internally to 2.5 V \u00b11%; drive FB from the converter output feedback divider to close the voltage loop."+ },+ {+ "number": "3",+ "name": "CS",+ "type": "input",+ "description": "Primary-side current-sense input to the PWM comparator (non-inverting). Connect to a current-sense resistor; the PWM comparator terminates OUT when CS exceeds the COMP-derived threshold (COMP-to-CS offset \u2248 1.15 V, current-sense gain \u2248 3 V/V). Max input signal 1 V typ."+ },+ {+ "number": "4",+ "name": "RT/CT",+ "type": "bidirectional",+ "description": "Oscillator timing pin. Connect timing resistor RRT from VREF to this pin and timing capacitor CCT from this pin to GND to set the fixed oscillator frequency. Discharge current is trimmed (~8.4 mA typ) for precise deadtime and duty-cycle programming. For UCC28C45, the OUT switching frequency is fOSC/2."+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Common ground return for the output driver stage and the logic/analog control section. All device voltages are referenced to this pin."+ },+ {+ "number": "6",+ "name": "OUT",+ "type": "output",+ "description": "Totem-pole gate-drive output intended to directly drive an external MOSFET. Peak source/sink capability \u00b11 A (200 mA continuous), rise/fall ~25 ns / 20 ns into 1 nF. For UCC28C45 an internal T flip-flop halves the oscillator frequency, limiting maximum duty cycle to <50%. OUT is actively held low when VDD is below the UVLO turn-on threshold."+ },+ {+ "number": "7",+ "name": "VDD",+ "type": "power_in",+ "description": "Analog controller bias supply. Recommended operating range up to 18 V (abs max 20 V). UCC28C45 UVLO: VDDON \u2248 8.4 V, VDDOFF \u2248 7.6 V. Bypass to GND with a 0.1 \u00b5F ceramic close to the pin plus bulk capacitance at least 10\u00d7 the driven MOSFET gate capacitance. Start-up current 50 \u00b5A typ; operating current 2.3 mA typ."+ },+ {+ "number": "8",+ "name": "VREF",+ "type": "power_out",+ "description": "5 V \u00b11% precision reference output used to source the RT/CT timing-resistor current and drive light external loads (up to 20 mA source). Bypass to GND with \u22650.1 \u00b5F ceramic placed close to the pin; additional bypassing required if driving external loads. Short-circuit protected (~45 mA typ)."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/ucc28c45.pdf",+ "pages": 60,+ "sha256": "9fa55f996731c56b",+ "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"+ }+ },+ "metadata": {+ "specs": {+ "Manufacturer": "Texas Instruments TI",+ "Package": "SOIC-8",+ "Category": "Power Management ICs",+ "Pins": "8"+ }+ },+ "variants": [+ {+ "mpn": "UCC28C45DRD",+ "kind": "packaging"+ },+ {+ "mpn": "UCC28C45DR",+ "kind": "packaging"+ },+ {+ "mpn": "UCC28C45DRDGK",+ "kind": "packaging"+ },+ {+ "mpn": "UCC28C45DRDGKR",+ "kind": "packaging"+ }+ ],+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "ucc28c45dr"+ ],+ "discovery_pitch": "UCC28C45DR (Texas Instruments TI) component page with datasheet-verified CAD.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -25,10 +156,5 @@ "docs/ucc28c45dr-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }