component
DRV8812PWPR
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 @@+# DRV8812PWPR++**Texas Instruments** · Stepper Motor Driver · HTSSOP-28++DRV8812PWPR 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 | passive | Charge pump flying capacitor pin; connect 0.01-μF 50-V capacitor between CP1 and CP2. |+| 2 | CP2 | passive | Charge pump flying capacitor pin; connect 0.01-μF 50-V capacitor between CP1 and CP2. |+| 3 | VCP | output | High-side gate drive supply voltage output; requires 0.1-μF 16-V bypass capacitor and 1-MΩ resistor to VM. |+| 4 | VMA | power_in | Bridge A motor supply voltage input, 8.2 V to 45 V; requires 0.1-μF bypass capacitor to GND. |+| 5 | AOUT1 | output | Bridge A output 1; drives motor winding A. |+| 6 | ISENA | passive | Bridge A ground/current sense connection; connect to current sense resistor for bridge A. |+| 7 | AOUT2 | output | Bridge A output 2; drives motor winding A. |+| 8 | BOUT2 | output | Bridge B output 2; drives motor winding B. |+| 9 | ISENB | passive | Bridge B ground/current sense connection; connect to current sense resistor for bridge B. |+| 10 | BOUT1 | output | Bridge B output 1; drives motor winding B. |+| 11 | VMB | power_in | Bridge B motor supply voltage input, 8.2 V to 45 V; requires 0.1-μF bypass capacitor to GND. |+| 12 | AVREF | input | Bridge A current set reference voltage input; sets winding current amplitude with recommended 0.01-μF bypass to GND. |+| 13 | BVREF | input | Bridge B current set reference voltage input; sets winding current amplitude with recommended 0.01-μF bypass to GND. |+| 14 | GND | power_in | Device ground; reference point for all voltage measurements and power return. |+| 15 | V3P3OUT | power_out | 3.3 V regulated output; requires 0.47-μF 6.3 V bypass capacitor to GND, can supply VREF. |+| 16 | nRESET | input | Active-low reset input; initializes internal logic and disables H-bridge outputs when driven low. |+| 17 | nSLEEP | input | Sleep mode input; logic high enables device, logic low enters low-power sleep mode with gate drive charge pump stopped. |+| 18 | nFAULT | tri_state | Open-drain fault output; driven low during overtemperature, overcurrent, or other fault conditions. |+| 19 | DECAY | input | Decay mode selection input; low selects slow decay, open selects mixed decay, high selects fast decay for both bridges. |+| 20 | APHASE | input | Bridge A phase/direction input; logic high sets AOUT1 high and AOUT2 low. |+| 21 | AENBL | input | Bridge A enable input; logic high enables bridge A outputs. |+| 22 | BENBL | input | Bridge B enable input; logic high enables bridge B outputs. |+| 23 | BPHASE | input | Bridge B phase/direction input; logic high sets BOUT1 high and BOUT2 low. |+| 24 | AI0 | input | Bridge A current setting input LSB; part of 2-bit DAC with AI1 that sets current to 100%, 71%, 38%, or 0% of full-scale. |+| 25 | AI1 | input | Bridge A current setting input MSB; part of 2-bit DAC with AI0 that sets current to 100%, 71%, 38%, or 0% of full-scale. |+| 26 | BI0 | input | Bridge B current setting input LSB; part of 2-bit DAC with BI1 that sets current to 100%, 71%, 38%, or 0% of full-scale. |+| 27 | BI1 | input | Bridge B current setting input MSB; part of 2-bit DAC with BI0 that sets current to 100%, 71%, 38%, or 0% of full-scale. |+| 28 | GND | power_in | Device ground; reference point for all voltage measurements and power return. |+| 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: `DRV8812PWPR`+- Footprint: `Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm`+- 3D model: HTSSOP-28 (KiCad packages3D, STEP)+- 3D model files: `drv8812pwpr-etched.step` / `drv8812pwpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `drv8812pwpr.step` / `drv8812pwpr.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/drv8812) (32 pp, sha256 `e267ee0fecd31d5d`, retrieved 2026-09-23, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5` (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/drv8812pwpr-datasheet.pdf)
page.jsonadded+269@@ -0,0 +1,269 @@+{+ "slug": "drv8812pwpr",+ "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",+ "drv8812pwpr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "drv8812pwpr.kicad_sym",+ "drv8812pwpr.kicad_mod",+ "drv8812pwpr.glb",+ "drv8812pwpr.step",+ "drv8812pwpr.lbr",+ "docs/hero.png",+ "docs/drv8812pwpr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "DRV8812PWPR",+ "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/drv8812",+ "parts": {+ "symbol": "drv8812pwpr.kicad_sym",+ "footprint": "drv8812pwpr.kicad_mod",+ "model_3d": "drv8812pwpr-etched.glb",+ "model_3d_plain": "drv8812pwpr.glb",+ "model_3d_step": "drv8812pwpr-etched.step",+ "model_3d_step_plain": "drv8812pwpr.step",+ "lbr": "drv8812pwpr.lbr"+ },+ "distributor_links": {+ "lcsc": "C55767"+ },+ "pins": [+ {+ "number": "1",+ "name": "CP1",+ "type": "passive",+ "description": "Charge pump flying capacitor pin; connect 0.01-μF 50-V capacitor between CP1 and CP2."+ },+ {+ "number": "2",+ "name": "CP2",+ "type": "passive",+ "description": "Charge pump flying capacitor pin; connect 0.01-μF 50-V capacitor between CP1 and CP2."+ },+ {+ "number": "3",+ "name": "VCP",+ "type": "output",+ "description": "High-side gate drive supply voltage output; requires 0.1-μF 16-V bypass capacitor and 1-MΩ resistor to VM."+ },+ {+ "number": "4",+ "name": "VMA",+ "type": "power_in",+ "description": "Bridge A motor supply voltage input, 8.2 V to 45 V; requires 0.1-μF bypass capacitor to GND."+ },+ {+ "number": "5",+ "name": "AOUT1",+ "type": "output",+ "description": "Bridge A output 1; drives motor winding A."+ },+ {+ "number": "6",+ "name": "ISENA",+ "type": "passive",+ "description": "Bridge A ground/current sense connection; connect to current sense resistor for bridge A."+ },+ {+ "number": "7",+ "name": "AOUT2",+ "type": "output",+ "description": "Bridge A output 2; drives motor winding A."+ },+ {+ "number": "8",+ "name": "BOUT2",+ "type": "output",+ "description": "Bridge B output 2; drives motor winding B."+ },+ {+ "number": "9",+ "name": "ISENB",+ "type": "passive",+ "description": "Bridge B ground/current sense connection; connect to current sense resistor for bridge B."+ },+ {+ "number": "10",+ "name": "BOUT1",+ "type": "output",+ "description": "Bridge B output 1; drives motor winding B."+ },+ {+ "number": "11",+ "name": "VMB",+ "type": "power_in",+ "description": "Bridge B motor supply voltage input, 8.2 V to 45 V; requires 0.1-μF bypass capacitor to GND."+ },+ {+ "number": "12",+ "name": "AVREF",+ "type": "input",+ "description": "Bridge A current set reference voltage input; sets winding current amplitude with recommended 0.01-μF bypass to GND."+ },+ {+ "number": "13",+ "name": "BVREF",+ "type": "input",+ "description": "Bridge B current set reference voltage input; sets winding current amplitude with recommended 0.01-μF bypass to GND."+ },+ {+ "number": "14",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground; reference point for all voltage measurements and power return."+ },+ {+ "number": "15",+ "name": "V3P3OUT",+ "type": "power_out",+ "description": "3.3 V regulated output; requires 0.47-μF 6.3 V bypass capacitor to GND, can supply VREF."+ },+ {+ "number": "16",+ "name": "nRESET",+ "type": "input",+ "description": "Active-low reset input; initializes internal logic and disables H-bridge outputs when driven low."+ },+ {+ "number": "17",+ "name": "nSLEEP",+ "type": "input",+ "description": "Sleep mode input; logic high enables device, logic low enters low-power sleep mode with gate drive charge pump stopped."+ },+ {+ "number": "18",+ "name": "nFAULT",+ "type": "tri_state",+ "description": "Open-drain fault output; driven low during overtemperature, overcurrent, or other fault conditions."+ },+ {+ "number": "19",+ "name": "DECAY",+ "type": "input",+ "description": "Decay mode selection input; low selects slow decay, open selects mixed decay, high selects fast decay for both bridges."+ },+ {+ "number": "20",+ "name": "APHASE",+ "type": "input",+ "description": "Bridge A phase/direction input; logic high sets AOUT1 high and AOUT2 low."+ },+ {+ "number": "21",+ "name": "AENBL",+ "type": "input",+ "description": "Bridge A enable input; logic high enables bridge A outputs."+ },+ {+ "number": "22",+ "name": "BENBL",+ "type": "input",+ "description": "Bridge B enable input; logic high enables bridge B outputs."+ },+ {+ "number": "23",+ "name": "BPHASE",+ "type": "input",+ "description": "Bridge B phase/direction input; logic high sets BOUT1 high and BOUT2 low."+ },+ {+ "number": "24",+ "name": "AI0",+ "type": "input",+ "description": "Bridge A current setting input LSB; part of 2-bit DAC with AI1 that sets current to 100%, 71%, 38%, or 0% of full-scale."+ },+ {+ "number": "25",+ "name": "AI1",+ "type": "input",+ "description": "Bridge A current setting input MSB; part of 2-bit DAC with AI0 that sets current to 100%, 71%, 38%, or 0% of full-scale."+ },+ {+ "number": "26",+ "name": "BI0",+ "type": "input",+ "description": "Bridge B current setting input LSB; part of 2-bit DAC with BI1 that sets current to 100%, 71%, 38%, or 0% of full-scale."+ },+ {+ "number": "27",+ "name": "BI1",+ "type": "input",+ "description": "Bridge B current setting input MSB; part of 2-bit DAC with BI0 that sets current to 100%, 71%, 38%, or 0% of full-scale."+ },+ {+ "number": "28",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground; reference point for all voltage measurements and power return."+ },+ {+ "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-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 29 added from the footprint"+ ],+ "pages_sent": 32,+ "cost_usd": 0.326,+ "at": "2026-09-23T13:47:14"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/drv8812",+ "pages": 32,+ "sha256": "e267ee0fecd31d5d",+ "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]"+ }+}