component
DRV8841PWPR
Public Made by Adomby adom
Texas Instruments Stepper Motor Driver, HTSSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+65@@ -0,0 +1,65 @@+# DRV8841PWPR++**Texas Instruments** · Stepper Motor Driver · HTSSOP-28++DRV8841PWPR from Texas Instruments, in a HTSSOP-28. 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 node; requires 0.01-µF 50-V capacitor between CP1 and CP2. |+| 2 | CP2 | bidirectional | Charge pump flying capacitor node; requires 0.01-µF 50-V capacitor between CP1 and CP2. |+| 3 | VCP | bidirectional | High-side gate drive voltage; connect through 0.1-µF 16-V capacitor and 1-MΩ resistor to VM. |+| 4 | VMA | power_in | Bridge A motor power supply; accepts 8.2 V to 45 V with 0.1-µF bypass capacitor to GND per pin. |+| 5 | AOUT1 | output | Bridge A output 1; drives motor winding A with 2.5-A peak drive current. |+| 6 | ISENA | bidirectional | Bridge A current sense; connect external sense resistor for bridge A current regulation. |+| 7 | AOUT2 | output | Bridge A output 2; drives motor winding A with 2.5-A peak drive current. |+| 8 | BOUT2 | output | Bridge B output 2; drives motor winding B with 2.5-A peak drive current. |+| 9 | ISENB | bidirectional | Bridge B current sense; connect external sense resistor for bridge B current regulation. |+| 10 | BOUT1 | output | Bridge B output 1; drives motor winding B with 2.5-A peak drive current. |+| 11 | VMB | power_in | Bridge B motor power supply; accepts 8.2 V to 45 V with 0.1-µF bypass capacitor to GND per pin. |+| 12 | AVREF | input | Bridge A reference voltage input; accepts 1 V to 3.5 V for current threshold setting (0 V to 1 V acceptable with degraded accuracy). |+| 13 | BVREF | input | Bridge B reference voltage input; accepts 1 V to 3.5 V for current threshold setting (0 V to 1 V acceptable with degraded accuracy). |+| 14 | GND | power_in | Device ground reference; return path for all signals. |+| 15 | V3P3OUT | power_out | 3.3-V regulator output; provides 3.2 V to 3.4 V at 0 to 1-mA output current, bypass with 0.47-µF 6.3-V capacitor. |+| 16 | nRESET | input | Active-low reset input; resets internal logic and disables H-bridge outputs when low. |+| 17 | nSLEEP | input | Sleep mode control input; logic high enables device, logic low enters low-power sleep mode. |+| 18 | nFAULT | tri_state | Open-drain fault output; pulled low on overtemperature or overcurrent protection event. |+| 19 | DECAY | input | Decay mode control input; low = slow decay, open = mixed decay, high = fast decay. |+| 20 | AIN2 | input | Bridge A input 2; logic level controls AOUT2 output state. |+| 21 | AIN1 | input | Bridge A input 1; logic level controls AOUT1 output state. |+| 22 | BIN1 | input | Bridge B input 1; logic level controls BOUT1 output state. |+| 23 | BIN2 | input | Bridge B input 2; logic level controls BOUT2 output state. |+| 24 | AI0 | input | Bridge A current setting bit 0; sets current level with AI1 (00=100%, 01=71%, 10=38%, 11=0%). |+| 25 | AI1 | input | Bridge A current setting bit 1; sets current level with AI0 (00=100%, 01=71%, 10=38%, 11=0%). |+| 26 | BI0 | input | Bridge B current setting bit 0; sets current level with BI1 (00=100%, 01=71%, 10=38%, 11=0%). |+| 27 | BI1 | input | Bridge B current setting bit 1; sets current level with BI0 (00=100%, 01=71%, 10=38%, 11=0%). |+| 28 | GND | power_in | Device ground reference (PowerPAD); return path and thermal pad. |+| 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 |+| Category | Motor Driver ICs |+| Pins | 29 |++## CAD (KiCad official)++- Symbol: `DRV8841PWPR`+- Footprint: `Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm`+- 3D model: HTSSOP-28 (KiCad packages3D, STEP)+- 3D model files: `drv8841pwpr-etched.step` / `drv8841pwpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `drv8841pwpr.step` / `drv8841pwpr.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/gpn/drv8841) (32 pp, sha256 `41ed628a530332e4`, retrieved 2026-09-21, 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/drv8841pwpr-datasheet.pdf)
page.jsonadded+269@@ -0,0 +1,269 @@+{+ "slug": "drv8841pwpr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Stepper Motor Driver, HTSSOP-28. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "motor driver ics",+ "drv8841pwpr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "drv8841pwpr.kicad_sym",+ "drv8841pwpr.kicad_mod",+ "drv8841pwpr.glb",+ "drv8841pwpr.step",+ "drv8841pwpr.lbr",+ "docs/hero.png",+ "docs/drv8841pwpr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "DRV8841PWPR",+ "manufacturer": "Texas Instruments",+ "package": "HTSSOP-28",+ "pin_count": 29,+ "category": "Motor Driver ICs",+ "subcategory": "Stepper Motor Driver",+ "datasheet": "https://www.ti.com/cn/lit/gpn/drv8841",+ "parts": {+ "symbol": "drv8841pwpr.kicad_sym",+ "footprint": "drv8841pwpr.kicad_mod",+ "model_3d": "drv8841pwpr-etched.glb",+ "model_3d_plain": "drv8841pwpr.glb",+ "model_3d_step": "drv8841pwpr-etched.step",+ "model_3d_step_plain": "drv8841pwpr.step",+ "lbr": "drv8841pwpr.lbr"+ },+ "distributor_links": {+ "lcsc": "C36542"+ },+ "pins": [+ {+ "number": "1",+ "name": "CP1",+ "type": "bidirectional",+ "description": "Charge pump flying capacitor node; requires 0.01-µF 50-V capacitor between CP1 and CP2."+ },+ {+ "number": "2",+ "name": "CP2",+ "type": "bidirectional",+ "description": "Charge pump flying capacitor node; requires 0.01-µF 50-V capacitor between CP1 and CP2."+ },+ {+ "number": "3",+ "name": "VCP",+ "type": "bidirectional",+ "description": "High-side gate drive voltage; connect through 0.1-µF 16-V capacitor and 1-MΩ resistor to VM."+ },+ {+ "number": "4",+ "name": "VMA",+ "type": "power_in",+ "description": "Bridge A motor power supply; accepts 8.2 V to 45 V with 0.1-µF bypass capacitor to GND per pin."+ },+ {+ "number": "5",+ "name": "AOUT1",+ "type": "output",+ "description": "Bridge A output 1; drives motor winding A with 2.5-A peak drive current."+ },+ {+ "number": "6",+ "name": "ISENA",+ "type": "bidirectional",+ "description": "Bridge A current sense; connect external sense resistor for bridge A current regulation."+ },+ {+ "number": "7",+ "name": "AOUT2",+ "type": "output",+ "description": "Bridge A output 2; drives motor winding A with 2.5-A peak drive current."+ },+ {+ "number": "8",+ "name": "BOUT2",+ "type": "output",+ "description": "Bridge B output 2; drives motor winding B with 2.5-A peak drive current."+ },+ {+ "number": "9",+ "name": "ISENB",+ "type": "bidirectional",+ "description": "Bridge B current sense; connect external sense resistor for bridge B current regulation."+ },+ {+ "number": "10",+ "name": "BOUT1",+ "type": "output",+ "description": "Bridge B output 1; drives motor winding B with 2.5-A peak drive current."+ },+ {+ "number": "11",+ "name": "VMB",+ "type": "power_in",+ "description": "Bridge B motor power supply; accepts 8.2 V to 45 V with 0.1-µF bypass capacitor to GND per pin."+ },+ {+ "number": "12",+ "name": "AVREF",+ "type": "input",+ "description": "Bridge A reference voltage input; accepts 1 V to 3.5 V for current threshold setting (0 V to 1 V acceptable with degraded accuracy)."+ },+ {+ "number": "13",+ "name": "BVREF",+ "type": "input",+ "description": "Bridge B reference voltage input; accepts 1 V to 3.5 V for current threshold setting (0 V to 1 V acceptable with degraded accuracy)."+ },+ {+ "number": "14",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground reference; return path for all signals."+ },+ {+ "number": "15",+ "name": "V3P3OUT",+ "type": "power_out",+ "description": "3.3-V regulator output; provides 3.2 V to 3.4 V at 0 to 1-mA output current, bypass with 0.47-µF 6.3-V capacitor."+ },+ {+ "number": "16",+ "name": "nRESET",+ "type": "input",+ "description": "Active-low reset input; resets internal logic and disables H-bridge outputs when low."+ },+ {+ "number": "17",+ "name": "nSLEEP",+ "type": "input",+ "description": "Sleep mode control input; logic high enables device, logic low enters low-power sleep mode."+ },+ {+ "number": "18",+ "name": "nFAULT",+ "type": "tri_state",+ "description": "Open-drain fault output; pulled low on overtemperature or overcurrent protection event."+ },+ {+ "number": "19",+ "name": "DECAY",+ "type": "input",+ "description": "Decay mode control input; low = slow decay, open = mixed decay, high = fast decay."+ },+ {+ "number": "20",+ "name": "AIN2",+ "type": "input",+ "description": "Bridge A input 2; logic level controls AOUT2 output state."+ },+ {+ "number": "21",+ "name": "AIN1",+ "type": "input",+ "description": "Bridge A input 1; logic level controls AOUT1 output state."+ },+ {+ "number": "22",+ "name": "BIN1",+ "type": "input",+ "description": "Bridge B input 1; logic level controls BOUT1 output state."+ },+ {+ "number": "23",+ "name": "BIN2",+ "type": "input",+ "description": "Bridge B input 2; logic level controls BOUT2 output state."+ },+ {+ "number": "24",+ "name": "AI0",+ "type": "input",+ "description": "Bridge A current setting bit 0; sets current level with AI1 (00=100%, 01=71%, 10=38%, 11=0%)."+ },+ {+ "number": "25",+ "name": "AI1",+ "type": "input",+ "description": "Bridge A current setting bit 1; sets current level with AI0 (00=100%, 01=71%, 10=38%, 11=0%)."+ },+ {+ "number": "26",+ "name": "BI0",+ "type": "input",+ "description": "Bridge B current setting bit 0; sets current level with BI1 (00=100%, 01=71%, 10=38%, 11=0%)."+ },+ {+ "number": "27",+ "name": "BI1",+ "type": "input",+ "description": "Bridge B current setting bit 1; sets current level with BI0 (00=100%, 01=71%, 10=38%, 11=0%)."+ },+ {+ "number": "28",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground reference (PowerPAD); return path and thermal pad."+ },+ {+ "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": 32,+ "cost_usd": 0.3919,+ "at": "2026-09-21T19:54:06"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/drv8841",+ "pages": 32,+ "sha256": "41ed628a530332e4",+ "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",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}