component
UC3844BD1R2G
Public Made by Adomby adom
onsemi AC-DC Controllers and Regulators, SOIC-8-150mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+116−8@@ -1,13 +1,126 @@ {+ "schema_version": 1,+ "type": "component", "slug": "uc3844bd1r2g",+ "title": "UC3844BD1R2G",+ "brief": "onsemi AC-DC Controllers and Regulators, SOIC-8-150mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "version": "0.1.0",- "type": "component",- "description": "onsemi AC-DC Controllers and Regulators, SOIC-8-150mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "pmic", "uc3844bd1r2g" ],+ "component": {+ "mpn": "UC3844BD1R2G",+ "manufacturer": "onsemi",+ "package": "SOIC-8-150mil",+ "pin_count": 8,+ "category": "PMIC",+ "subcategory": "AC-DC Controllers and Regulators",+ "datasheet": "https://www.onsemi.com/pdf/datasheet/uc3844bd1r2-d.pdf",+ "parts": {+ "symbol": "uc3844bd1r2g.kicad_sym",+ "footprint": "uc3844bd1r2g.kicad_mod",+ "model_3d": "uc3844bd1r2g.glb",+ "model_3d_step": "uc3844bd1r2g.step",+ "lbr": "uc3844bd1r2g.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "Compensation",+ "type": "output",+ "description": "Error-amplifier output / loop compensation node. Available for external loop-compensation networks connected to the Voltage Feedback pin. Also drives the internal current-sense comparator through a 2 V level shift and 1/3 divider."+ },+ {+ "number": "2",+ "name": "Voltage Feedback",+ "type": "input",+ "description": "Inverting input of the error amplifier. Normally connected to the switching-power-supply output through a resistor divider; internally referenced to 2.5 V. Input bias current typically -0.1 uA."+ },+ {+ "number": "3",+ "name": "Current Sense",+ "type": "input",+ "description": "Current-sense comparator input. A voltage proportional to primary switch current (via a ground-referenced sense resistor) is applied here. Trips PWM latch when it reaches 1.0 V (typ) scaled from the compensation pin; input range -0.3 to +5.5 V."+ },+ {+ "number": "4",+ "name": "RT/CT",+ "type": "passive",+ "description": "Oscillator timing pin. An external resistor to Vref and capacitor to GND set the oscillator frequency (fOSC ~ 1.72/(RT*CT) for RT > 5 k) and output deadtime. Guaranteed to 250 kHz; usable to 500 kHz output switching frequency."+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground (control and power ground shared in the 8-pin package). Return for all internal circuitry and the totem-pole output stage."+ },+ {+ "number": "6",+ "name": "Output",+ "type": "output",+ "description": "High-current totem-pole output for driving a power MOSFET gate directly. Rated for 1.0 A source/sink peak; typical rise/fall time 50 ns with 1 nF load. Duty cycle limited to 50% max (UC3844B/UC2844B)."+ },+ {+ "number": "7",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply for control logic and output driver. UVLO on/off thresholds 16 V / 10 V (UC3844B). Absolute maximum 36 V; internal zener clamp at ~36 V (IZ up to 25 mA). Startup current ~0.5 mA, operating ~17 mA."+ },+ {+ "number": "8",+ "name": "Vref",+ "type": "power_out",+ "description": "5.0 V trimmed reference output (+/-1% at 25 C). Sources up to 20 mA for external circuitry and the oscillator timing resistor; short-circuit current typically -85 mA."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.onsemi.com/pdf/datasheet/uc3844bd1r2-d.pdf",+ "pages": 19,+ "sha256": "e69ff39fc0ea9e08",+ "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": "onsemi",+ "Package": "SOIC-8-150mil",+ "Category": "PMIC",+ "Pins": "8"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "uc3844bd1r2g"+ ],+ "discovery_pitch": "UC3844BD1R2G (onsemi) component page with datasheet-verified CAD.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -25,10 +138,5 @@ "docs/uc3844bd1r2g-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }