DRV8825

@@ -1,8 +1,11 @@ {+  "schema_version": 1,+  "type": "component",   "slug": "drv8825",+  "title": "DRV8825",+  "brief": "TI microstepping bipolar stepper driver, HTSSOP-28. Up to 2.5 A/coil, 1/32 step, STEP/DIR translator, 45 V. Datasheet-verified.",   "version": "0.1.0",-  "type": "component",-  "description": "TI microstepping bipolar stepper driver, HTSSOP-28. Up to 2.5 A/coil, 1/32 step, STEP/DIR translator, 45 V. Datasheet-verified.",+  "license": "CC-BY-SA-4.0",   "tags": [     "component",     "motor-driver",@@ -11,6 +14,248 @@     "htssop-28",     "texas-instruments"   ],+  "component": {+    "mpn": "DRV8825",+    "manufacturer": "Texas Instruments",+    "package": "HTSSOP-28",+    "pin_count": 29,+    "category": "Motor Driver",+    "subcategory": "Bipolar stepper motor driver",+    "datasheet": "https://www.ti.com/lit/ds/symlink/drv8825.pdf",+    "parts": {+      "symbol": "drv8825.kicad_sym",+      "footprint": "drv8825.kicad_mod",+      "model_3d": "drv8825.glb"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "CP1",+        "type": "passive",+        "description": "Charge pump flying capacitor terminal 1. Connect a 0.01-uF 50-V ceramic capacitor between CP1 and CP2."+      },+      {+        "number": "2",+        "name": "CP2",+        "type": "passive",+        "description": "Charge pump flying capacitor terminal 2. Connect a 0.01-uF 50-V ceramic capacitor between CP1 and CP2."+      },+      {+        "number": "3",+        "name": "VCP",+        "type": "power_out",+        "description": "High-side gate drive voltage (charge pump output). Connect a 0.1-uF 16-V ceramic capacitor to VM and a 1-MOhm resistor to VM."+      },+      {+        "number": "4",+        "name": "VMA",+        "type": "power_in",+        "description": "Bridge A power supply (8.2 to 45 V). Must be tied to the same supply as VMB; bypass with a 0.1-uF cap to GND plus appropriate bulk capacitance."+      },+      {+        "number": "5",+        "name": "AOUT1",+        "type": "output",+        "description": "Bridge A output 1. Connect to bipolar stepper motor winding A. Positive winding current flows AOUT1 -> AOUT2. Rated for up to 2.5 A continuous."+      },+      {+        "number": "6",+        "name": "ISENA",+        "type": "passive",+        "description": "Bridge A ground / current-sense return. Connect the low side of bridge A through the current-sense resistor for bridge A to GND."+      },+      {+        "number": "7",+        "name": "AOUT2",+        "type": "output",+        "description": "Bridge A output 2. Connect to bipolar stepper motor winding A. Positive current is AOUT1 -> AOUT2."+      },+      {+        "number": "8",+        "name": "BOUT2",+        "type": "output",+        "description": "Bridge B output 2. Connect to bipolar stepper motor winding B. Positive current is BOUT1 -> BOUT2."+      },+      {+        "number": "9",+        "name": "ISENB",+        "type": "passive",+        "description": "Bridge B ground / current-sense return. Connect the low side of bridge B through the current-sense resistor for bridge B to GND."+      },+      {+        "number": "10",+        "name": "BOUT1",+        "type": "output",+        "description": "Bridge B output 1. Connect to bipolar stepper motor winding B."+      },+      {+        "number": "11",+        "name": "VMB",+        "type": "power_in",+        "description": "Bridge B power supply (8.2 to 45 V). Must be tied to the same supply as VMA; bypass with a 0.1-uF cap to GND plus appropriate bulk capacitance."+      },+      {+        "number": "12",+        "name": "AVREF",+        "type": "input",+        "description": "Bridge A current-set reference input. Reference voltage for winding-A regulated current. Normally AVREF and BVREF are tied together; can be driven from V3P3OUT. Recommended VREF range 1 to 3.5 V."+      },+      {+        "number": "13",+        "name": "BVREF",+        "type": "input",+        "description": "Bridge B current-set reference input. Reference voltage for winding-B regulated current. Normally tied to AVREF."+      },+      {+        "number": "14",+        "name": "GND",+        "type": "power_in",+        "description": "Device ground. Also connect the exposed PowerPAD (PPAD) to GND for thermal dissipation."+      },+      {+        "number": "15",+        "name": "V3P3OUT",+        "type": "power_out",+        "description": "Internal 3.3-V LDO regulator output (3.2/3.3/3.4 V typ, up to 1 mA load). Bypass to GND with a 0.47-uF 6.3-V ceramic capacitor. Can be used to supply VREF."+      },+      {+        "number": "16",+        "name": "nRESET",+        "type": "input",+        "description": "Active-low reset input. Initializes the indexer logic and disables the H-bridge outputs when low. Internal pulldown."+      },+      {+        "number": "17",+        "name": "nSLEEP",+        "type": "input",+        "description": "Sleep-mode input. Logic high enables the device; logic low enters low-power sleep. Internal pulldown. tWAKE = 1.7 ms from nSLEEP high to STEP accepted."+      },+      {+        "number": "18",+        "name": "nFAULT",+        "type": "output",+        "description": "Open-drain fault output. Logic low when a fault condition (overtemperature, overcurrent) is present. Requires external pullup. VOL = 0.5 V max at IO = 5 mA."+      },+      {+        "number": "19",+        "name": "DECAY",+        "type": "input",+        "description": "Decay-mode select input. Low = slow decay; open (floating) = mixed decay; high = fast decay. Has both internal pullup (~130 kOhm) and pulldown (~80 kOhm) so the floating state resolves to mid-rail (mixed)."+      },+      {+        "number": "20",+        "name": "DIR",+        "type": "input",+        "description": "Direction input. Logic level sets the stepping direction. Internal pulldown (~100 kOhm)."+      },+      {+        "number": "21",+        "name": "nENBL",+        "type": "input",+        "description": "Enable input. Logic high disables the outputs and indexer operation; logic low enables. Internal pulldown."+      },+      {+        "number": "22",+        "name": "STEP",+        "type": "input",+        "description": "Step input. A rising edge causes the internal indexer to advance one microstep. Internal pulldown. fSTEP up to 250 kHz; min high/low pulse 1.9 us."+      },+      {+        "number": "23",+        "name": "NC",+        "type": "unconnected",+        "description": "No internal connection. Leave this pin unconnected."+      },+      {+        "number": "24",+        "name": "MODE0",+        "type": "input",+        "description": "Microstep-mode select bit 0. Together with MODE1/MODE2 sets full, 1/2, 1/4, 1/8, 1/16, or 1/32 step. Internal pulldown."+      },+      {+        "number": "25",+        "name": "MODE1",+        "type": "input",+        "description": "Microstep-mode select bit 1. Together with MODE0/MODE2 sets the microstep resolution. Internal pulldown."+      },+      {+        "number": "26",+        "name": "MODE2",+        "type": "input",+        "description": "Microstep-mode select bit 2. Together with MODE0/MODE1 sets the microstep resolution. Internal pulldown."+      },+      {+        "number": "27",+        "name": "nHOME",+        "type": "output",+        "description": "Open-drain home-position output. Logic low when the indexer is at the home state of the step table. Requires external pullup."+      },+      {+        "number": "28",+        "name": "GND",+        "type": "power_in",+        "description": "Device ground. Second ground pin; connect together with pin 14 and the PowerPAD."+      },+      {+        "number": "PAD",+        "name": "PPAD",+        "type": "power_in",+        "description": "Exposed thermal PowerPAD on the package bottom. Must be soldered to the PCB ground plane for thermal performance and connected to GND."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://www.ti.com/lit/ds/symlink/drv8825.pdf",+        "pages": 36,+        "sha256": "5b4dccc2497334e1",+        "source_tier": "mfr"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 29,+        "described": 29,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    }+  },+  "metadata": {+    "specs": {+      "Type": "Bipolar stepper motor driver",+      "Output": "2 N-channel full-bridges",+      "Current": "up to 2.5 A/coil (with cooling)",+      "Microstepping": "full to 1/32 (MODE0-2)",+      "Control": "STEP + DIR indexer",+      "Motor supply": "8.2-45 V",+      "Protection": "OCP + OTP + UVLO",+      "Package": "HTSSOP-28 (thermal pad)"+    }+  },+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"+  ],+  "discovery_triggers": [+    "drv8825",+    "stepper driver",+    "microstepping driver",+    "3d printer stepper",+    "a4988 upgrade"+  ],+  "discovery_pitch": "DRV8825 microstepping bipolar stepper motor driver (HTSSOP-28) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  },   "dependencies": {},   "hero": {     "type": "image",@@ -26,10 +271,5 @@     "docs/drv8825-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html"-  ],-  "visibility": "public",-  "author": {-    "name": "Ray",-    "email": "[email protected]"-  }+  ] }\ No newline at end of file