component
DRV8825PWPR
Public Made by Adomby adom
Texas Instruments Stepper Motor Driver, HTSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+65@@ -0,0 +1,65 @@+# DRV8825PWPR++**Texas Instruments** · Stepper Motor Driver · HTSSOP-28-EP++DRV8825PWPR from Texas Instruments, in a HTSSOP-28-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | CP1 | bidirectional | Charge pump flying capacitor connection; connect 0.01-μF 50-V capacitor between CP1 and CP2. |+| 2 | CP2 | bidirectional | Charge pump flying capacitor connection; connect 0.01-μF 50-V capacitor between CP1 and CP2. |+| 3 | VCP | bidirectional | High-side gate drive voltage supply; connect 0.1-μF 16-V ceramic capacitor and 1-MΩ resistor between VCP and VMA. |+| 4 | VMA | power_in | Bridge A motor power supply input (8.2 to 45 V); bypass with 0.1-μF capacitor to GND. |+| 5 | AOUT1 | output | Bridge A output 1; connect to bipolar stepper motor winding A. |+| 6 | ISENA | bidirectional | Bridge A current sense and ground connection; connect current sense resistor to measure winding current. |+| 7 | AOUT2 | output | Bridge A output 2; positive current flows from AOUT1 to AOUT2. |+| 8 | BOUT2 | output | Bridge B output 2; positive current flows from BOUT1 to BOUT2. |+| 9 | ISENB | bidirectional | Bridge B current sense and ground connection; connect current sense resistor to measure winding current. |+| 10 | BOUT1 | output | Bridge B output 1; connect to bipolar stepper motor winding B. |+| 11 | VMB | power_in | Bridge B motor power supply input (8.2 to 45 V); bypass with 0.47-μF 6.3-V ceramic capacitor to GND. |+| 12 | AVREF | input | Bridge A current set reference input (1 to 3.5 V); sets maximum motor winding current via external resistor divider. |+| 13 | BVREF | input | Bridge B current set reference input (1 to 3.5 V); sets maximum motor winding current via external resistor divider. |+| 14 | GND | power_in | Device ground. |+| 15 | V3P3OUT | output | 3.3-V internal regulator output (0 to 1 mA load current); supplies internal reference and can power external logic. |+| 16 | nRESET | input | Active-low reset input with 100-kΩ internal pulldown; resets indexer to home position and disables H-bridge outputs. |+| 17 | nSLEEP | input | Sleep mode control input with 1-MΩ internal pulldown; logic high for normal operation, logic low for sleep mode. |+| 18 | nFAULT | tri_state | Open-drain fault output; pulled low on overcurrent, thermal shutdown, or undervoltage lockout condition. |+| 19 | DECAY | input | Decay mode selection input with ~130-kΩ internal pullup and ~80-kΩ pulldown; logic low = slow decay, floating = mixed decay, logic high = fast decay. |+| 20 | DIR | input | Direction input with 100-kΩ internal pulldown; determines stepper motor rotation direction with each STEP pulse. |+| 21 | nENBL | input | Active-high enable input with 100-kΩ internal pulldown; logic low enables H-bridges and indexer, logic high disables. |+| 22 | STEP | input | Step pulse input with 100-kΩ internal pulldown; rising edge advances indexer by one step state. |+| 23 | NC | unconnected | No connect pin; leave unconnected. |+| 24 | MODE0 | input | Microstep mode select bit 0 with 100-kΩ internal pulldown; combined with MODE1/MODE2 sets resolution from full step to 1/32 step. |+| 25 | MODE1 | input | Microstep mode select bit 1 with 100-kΩ internal pulldown; combined with MODE0/MODE2 sets resolution from full step to 1/32 step. |+| 26 | MODE2 | input | Microstep mode select bit 2 with 100-kΩ internal pulldown; combined with MODE0/MODE1 sets resolution from full step to 1/32 step. |+| 27 | nHOME | tri_state | Open-drain home position output; logic low when indexer is at 45° home position state. |+| 28 | GND | power_in | Device ground and thermal pad connection. |+| 29 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-28-EP |+| Category | Motor Driver ICs |+| Pins | 29 |++## CAD (KiCad official)++- Symbol: `DRV8825PWPR`+- Footprint: `Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm`+- 3D model: HTSSOP-28-EP (KiCad packages3D, STEP)+- 3D model files: `drv8825pwpr-etched.step` / `drv8825pwpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `drv8825pwpr.step` / `drv8825pwpr.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/ds/symlink/drv8825.pdf) (36 pp, sha256 `5b4dccc2497334e1`, retrieved 2026-09-17, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/drv8825pwpr-datasheet.pdf)
page.jsonadded+268@@ -0,0 +1,268 @@+{+ "slug": "drv8825pwpr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Stepper Motor Driver, HTSSOP-28-EP. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "motor driver ics",+ "drv8825pwpr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "drv8825pwpr.kicad_sym",+ "drv8825pwpr.kicad_mod",+ "drv8825pwpr.glb",+ "drv8825pwpr.step",+ "drv8825pwpr.lbr",+ "docs/hero.png",+ "docs/drv8825pwpr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "DRV8825PWPR",+ "manufacturer": "Texas Instruments",+ "package": "HTSSOP-28-EP",+ "pin_count": 29,+ "category": "Motor Driver ICs",+ "subcategory": "Stepper Motor Driver",+ "datasheet": "https://www.ti.com/cn/lit/ds/symlink/drv8825.pdf",+ "parts": {+ "symbol": "drv8825pwpr.kicad_sym",+ "footprint": "drv8825pwpr.kicad_mod",+ "model_3d": "drv8825pwpr-etched.glb",+ "model_3d_plain": "drv8825pwpr.glb",+ "model_3d_step": "drv8825pwpr-etched.step",+ "model_3d_step_plain": "drv8825pwpr.step",+ "lbr": "drv8825pwpr.lbr"+ },+ "distributor_links": {+ "lcsc": "C81582"+ },+ "pins": [+ {+ "number": "1",+ "name": "CP1",+ "type": "bidirectional",+ "description": "Charge pump flying capacitor connection; connect 0.01-μF 50-V capacitor between CP1 and CP2."+ },+ {+ "number": "2",+ "name": "CP2",+ "type": "bidirectional",+ "description": "Charge pump flying capacitor connection; connect 0.01-μF 50-V capacitor between CP1 and CP2."+ },+ {+ "number": "3",+ "name": "VCP",+ "type": "bidirectional",+ "description": "High-side gate drive voltage supply; connect 0.1-μF 16-V ceramic capacitor and 1-MΩ resistor between VCP and VMA."+ },+ {+ "number": "4",+ "name": "VMA",+ "type": "power_in",+ "description": "Bridge A motor power supply input (8.2 to 45 V); bypass with 0.1-μF capacitor to GND."+ },+ {+ "number": "5",+ "name": "AOUT1",+ "type": "output",+ "description": "Bridge A output 1; connect to bipolar stepper motor winding A."+ },+ {+ "number": "6",+ "name": "ISENA",+ "type": "bidirectional",+ "description": "Bridge A current sense and ground connection; connect current sense resistor to measure winding current."+ },+ {+ "number": "7",+ "name": "AOUT2",+ "type": "output",+ "description": "Bridge A output 2; positive current flows from AOUT1 to AOUT2."+ },+ {+ "number": "8",+ "name": "BOUT2",+ "type": "output",+ "description": "Bridge B output 2; positive current flows from BOUT1 to BOUT2."+ },+ {+ "number": "9",+ "name": "ISENB",+ "type": "bidirectional",+ "description": "Bridge B current sense and ground connection; connect current sense resistor to measure winding current."+ },+ {+ "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 motor power supply input (8.2 to 45 V); bypass with 0.47-μF 6.3-V ceramic capacitor to GND."+ },+ {+ "number": "12",+ "name": "AVREF",+ "type": "input",+ "description": "Bridge A current set reference input (1 to 3.5 V); sets maximum motor winding current via external resistor divider."+ },+ {+ "number": "13",+ "name": "BVREF",+ "type": "input",+ "description": "Bridge B current set reference input (1 to 3.5 V); sets maximum motor winding current via external resistor divider."+ },+ {+ "number": "14",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground."+ },+ {+ "number": "15",+ "name": "V3P3OUT",+ "type": "output",+ "description": "3.3-V internal regulator output (0 to 1 mA load current); supplies internal reference and can power external logic."+ },+ {+ "number": "16",+ "name": "nRESET",+ "type": "input",+ "description": "Active-low reset input with 100-kΩ internal pulldown; resets indexer to home position and disables H-bridge outputs."+ },+ {+ "number": "17",+ "name": "nSLEEP",+ "type": "input",+ "description": "Sleep mode control input with 1-MΩ internal pulldown; logic high for normal operation, logic low for sleep mode."+ },+ {+ "number": "18",+ "name": "nFAULT",+ "type": "tri_state",+ "description": "Open-drain fault output; pulled low on overcurrent, thermal shutdown, or undervoltage lockout condition."+ },+ {+ "number": "19",+ "name": "DECAY",+ "type": "input",+ "description": "Decay mode selection input with ~130-kΩ internal pullup and ~80-kΩ pulldown; logic low = slow decay, floating = mixed decay, logic high = fast decay."+ },+ {+ "number": "20",+ "name": "DIR",+ "type": "input",+ "description": "Direction input with 100-kΩ internal pulldown; determines stepper motor rotation direction with each STEP pulse."+ },+ {+ "number": "21",+ "name": "nENBL",+ "type": "input",+ "description": "Active-high enable input with 100-kΩ internal pulldown; logic low enables H-bridges and indexer, logic high disables."+ },+ {+ "number": "22",+ "name": "STEP",+ "type": "input",+ "description": "Step pulse input with 100-kΩ internal pulldown; rising edge advances indexer by one step state."+ },+ {+ "number": "23",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect pin; leave unconnected."+ },+ {+ "number": "24",+ "name": "MODE0",+ "type": "input",+ "description": "Microstep mode select bit 0 with 100-kΩ internal pulldown; combined with MODE1/MODE2 sets resolution from full step to 1/32 step."+ },+ {+ "number": "25",+ "name": "MODE1",+ "type": "input",+ "description": "Microstep mode select bit 1 with 100-kΩ internal pulldown; combined with MODE0/MODE2 sets resolution from full step to 1/32 step."+ },+ {+ "number": "26",+ "name": "MODE2",+ "type": "input",+ "description": "Microstep mode select bit 2 with 100-kΩ internal pulldown; combined with MODE0/MODE1 sets resolution from full step to 1/32 step."+ },+ {+ "number": "27",+ "name": "nHOME",+ "type": "tri_state",+ "description": "Open-drain home position output; logic low when indexer is at 45° home position state."+ },+ {+ "number": "28",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground and thermal pad connection."+ },+ {+ "number": "29",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 29 added from the footprint"+ ],+ "pages_sent": 36,+ "cost_usd": 0.3897,+ "at": "2026-09-17T21:17:26"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/ds/symlink/drv8825.pdf",+ "pages": 36,+ "sha256": "5b4dccc2497334e1",+ "source_tier": "lcsc"+ },+ "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"+ }+ },+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}