A4950

@@ -1,8 +1,11 @@ {+  "schema_version": 1,+  "type": "component",   "slug": "a4950",+  "title": "A4950",+  "brief": "Allegro full-bridge brushed DC motor driver, SOIC-8 with exposed pad. 8-40 V, 3.5 A peak, current limit. Datasheet-verified.",   "version": "0.1.0",-  "type": "component",-  "description": "Allegro full-bridge brushed DC motor driver, SOIC-8 with exposed pad. 8-40 V, 3.5 A peak, current limit. Datasheet-verified.",+  "license": "CC-BY-SA-4.0",   "tags": [     "component",     "driver",@@ -12,6 +15,128 @@     "soic-8",     "allegro"   ],+  "component": {+    "mpn": "A4950",+    "manufacturer": "Allegro MicroSystems",+    "package": "SOIC-8-EP",+    "pin_count": 9,+    "category": "Driver",+    "subcategory": "Brushed DC motor driver",+    "datasheet": "https://www.allegromicro.com/-/media/files/datasheets/a4950-datasheet.pdf",+    "parts": {+      "symbol": "a4950.kicad_sym",+      "footprint": "a4950.kicad_mod",+      "model_3d": "a4950.glb",+      "model_3d_step": "a4950.step",+      "lbr": "a4950.lbr"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "GND",+        "type": "power_in",+        "description": "Device ground return. Should tie to the PCB star ground located directly under the exposed thermal pad."+      },+      {+        "number": "2",+        "name": "IN2",+        "type": "input",+        "description": "Logic input 2 for the full bridge. VIN(1) \u2265 2.0 V, VIN(0) \u2264 0.8 V, with internal ~50 k\u03a9 pull-down. Combined with IN1 selects forward, reverse, brake, or coast/standby per the PWM Control Truth Table."+      },+      {+        "number": "3",+        "name": "IN1",+        "type": "input",+        "description": "Logic input 1 for the full bridge. VIN(1) \u2265 2.0 V, VIN(0) \u2264 0.8 V, with internal ~50 k\u03a9 pull-down. Both inputs low for >1 ms enters Low Power Standby mode."+      },+      {+        "number": "4",+        "name": "VREF",+        "type": "input",+        "description": "Analog reference input that sets the PWM current-limit threshold. Valid range 0 to 5 V; peak trip current is ITripMAX = VREF / (10 \u00d7 RS), where RS is the sense resistor on LSS."+      },+      {+        "number": "5",+        "name": "VBB",+        "type": "power_in",+        "description": "Load supply voltage input, 8 to 40 V operating range (40 V absolute max). Should be decoupled with a bulk electrolytic (~100 \u00b5F) in parallel with a ceramic (~0.22 \u00b5F) close to the pin."+      },+      {+        "number": "6",+        "name": "OUT1",+        "type": "output",+        "description": "DMOS full-bridge output 1 driving one side of the motor winding. Rated for up to \u00b13.5 A continuous (6 A transient <500 ns); absolute output voltage range \u22122 to 42 V."+      },+      {+        "number": "7",+        "name": "LSS",+        "type": "passive",+        "description": "Low-side source / sense-resistor return. External current-sense resistor RS is connected from LSS to ground for PWM current regulation. Sense voltage limit \u00b1500 mV."+      },+      {+        "number": "8",+        "name": "OUT2",+        "type": "output",+        "description": "DMOS full-bridge output 2 driving the other side of the motor winding. Rated for up to \u00b13.5 A continuous (6 A transient <500 ns); absolute output voltage range \u22122 to 42 V."+      },+      {+        "number": "9",+        "name": "PAD",+        "type": "passive",+        "description": "Exposed thermal pad on the underside of the package. Solder to the PCB copper ground plane for enhanced thermal dissipation; typically connected to GND at the star ground point."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://www.allegromicro.com/-/media/files/datasheets/a4950-datasheet.pdf",+        "pages": 9,+        "sha256": "9878d992aa310a27",+        "source_tier": "mfr"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 9,+        "described": 9,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    }+  },+  "metadata": {+    "specs": {+      "Type": "Full-bridge brushed DC motor driver",+      "Supply (VBB)": "8-40 V",+      "Peak current": "3.5 A",+      "Control": "IN1 / IN2 (PWM)",+      "Current limit": "Fixed off-time (VREF + LSS sense)",+      "Protection": "UVLO, OCP, thermal",+      "Package": "SOIC-8 with exposed pad"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "a4950",+    "full bridge motor driver",+    "brushed dc h-bridge",+    "40v motor driver"+  ],+  "discovery_pitch": "Allegro A4950 full-bridge brushed DC motor driver (SOIC-8 EP) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  },   "dependencies": {},   "hero": {     "type": "image",@@ -29,10 +154,5 @@     "docs/a4950-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html"-  ],-  "visibility": "public",-  "author": {-    "name": "Ray",-    "email": "[email protected]"-  }+  ] }\ No newline at end of file