component
DRV8425PWPR
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+66@@ -0,0 +1,66 @@+# DRV8425PWPR++**Texas Instruments** · Stepper Motor Driver · HTSSOP-28-EP++DRV8425PWPR 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 | VCP | power_out | Charge pump output voltage supplying gate driver power; connect 0.22µF 16V X7R ceramic capacitor to VM. |+| 2 | VM | power_in | Motor power supply voltage input ranging 4.5V to 33V; bypass each pin with 0.01µF ceramic capacitor and bulk capacitor to PGND. |+| 3 | PGND | power_in | Power ground connection for motor power supply; connect to system ground. |+| 4 | AOUT1 | output | Winding A output channel 1 for stepper motor phase A drive; connect to motor winding. |+| 5 | AOUT1 | output | Winding A output channel 1 (parallel pin) for stepper motor phase A drive; connect to motor winding. |+| 6 | AOUT2 | output | Winding A output channel 2 for stepper motor phase A drive; connect to motor winding. |+| 7 | AOUT2 | output | Winding A output channel 2 (parallel pin) for stepper motor phase A drive; connect to motor winding. |+| 8 | BOUT2 | output | Winding B output channel 2 for stepper motor phase B drive; connect to motor winding. |+| 9 | BOUT2 | output | Winding B output channel 2 (parallel pin) for stepper motor phase B drive; connect to motor winding. |+| 10 | BOUT1 | output | Winding B output channel 1 for stepper motor phase B drive; connect to motor winding. |+| 11 | BOUT1 | output | Winding B output channel 1 (parallel pin) for stepper motor phase B drive; connect to motor winding. |+| 12 | PGND | power_in | Power ground connection for motor power supply; connect to system ground. |+| 13 | VM | power_in | Motor power supply voltage input ranging 4.5V to 33V; bypass with 0.01µF ceramic capacitor and bulk capacitor to PGND. |+| 14 | GND | power_in | Device logic ground; connect to system ground. |+| 15 | DVDD | power_out | Internal regulator output providing 4.75V to 5.25V logic power; bypass with 0.47µF to 1µF X7R ceramic capacitor to GND. |+| 16 | nFAULT | output | Fault status indicator open-drain output; pulled low during fault conditions (UVLO, CPUV, OCP, OTSD); requires external pull-up resistor to VCC. |+| 17 | VREF | power_in | Current set reference input voltage with maximum 2.64V for DRV8425; sets full-scale motor current via current control DAC (KV = 1.32 V/A). |+| 18 | M0 | input | Microstepping mode setting pin with internal pull-down resistor; configure with M1 to select step resolution from full-step to 1/256 microstep. |+| 19 | TOFF | input | PWM chopping OFF-time four-level input pin; sets 7µs, 16µs, 24µs, or 32µs OFF duration and ripple current in intelligent tuning mode. |+| 20 | DECAY1 | input | Decay mode setting pin with internal pull-down resistor; configure with DECAY0 to select decay strategy (smart tuning, mixed, slow). |+| 21 | DECAY0 | input | Decay mode setting pin with internal pull-down resistor; configure with DECAY1 to select decay strategy (smart tuning, mixed, slow). |+| 22 | M1 | input | Microstepping mode setting four-level input pin; configure with M0 to select step resolution from full-step to 1/256 microstep. |+| 23 | STEP | input | Stepper motor step command input with internal pull-down; rising edge advances motor one microstep; maximum 500kHz input frequency. |+| 24 | DIR | input | Motor rotation direction control input with internal pull-down; logic level selects clockwise or counter-clockwise stepping direction. |+| 25 | ENABLE | input | Device output enable control input with internal pull-up to DVDD; logic low disables all outputs, logic high enables normal operation. |+| 26 | nSLEEP | input | Sleep mode control input with internal pull-down; logic high enables device, logic low enters 2µA low-power sleep mode; low pulse clears fault. |+| 27 | CPL | passive | Charge pump negative switching node; connect 0.022µF X7R ceramic capacitor between CPL and CPH for charge pump energy storage. |+| 28 | CPH | passive | Charge pump positive switching node; connect 0.022µF X7R ceramic capacitor between CPH and CPL for charge pump energy storage. |+| 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: `DRV8425PWPR`+- 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: `drv8425pwpr-etched.step` / `drv8425pwpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `drv8425pwpr.step` / `drv8425pwpr.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/drv8425) (56 pp, sha256 `d2894da743bf3f58`, retrieved 2026-09-23, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/drv8425pwpr-datasheet.pdf)
page.jsonadded+270@@ -0,0 +1,270 @@+{+ "slug": "drv8425pwpr",+ "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",+ "drv8425pwpr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "drv8425pwpr.kicad_sym",+ "drv8425pwpr.kicad_mod",+ "drv8425pwpr.glb",+ "drv8425pwpr.step",+ "drv8425pwpr.lbr",+ "docs/hero.png",+ "docs/drv8425pwpr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "DRV8425PWPR",+ "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/gpn/drv8425",+ "parts": {+ "symbol": "drv8425pwpr.kicad_sym",+ "footprint": "drv8425pwpr.kicad_mod",+ "model_3d": "drv8425pwpr-etched.glb",+ "model_3d_plain": "drv8425pwpr.glb",+ "model_3d_step": "drv8425pwpr-etched.step",+ "model_3d_step_plain": "drv8425pwpr.step",+ "lbr": "drv8425pwpr.lbr"+ },+ "distributor_links": {+ "lcsc": "C3681319"+ },+ "pins": [+ {+ "number": "1",+ "name": "VCP",+ "type": "power_out",+ "description": "Charge pump output voltage supplying gate driver power; connect 0.22µF 16V X7R ceramic capacitor to VM."+ },+ {+ "number": "2",+ "name": "VM",+ "type": "power_in",+ "description": "Motor power supply voltage input ranging 4.5V to 33V; bypass each pin with 0.01µF ceramic capacitor and bulk capacitor to PGND."+ },+ {+ "number": "3",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connection for motor power supply; connect to system ground."+ },+ {+ "number": "4",+ "name": "AOUT1",+ "type": "output",+ "description": "Winding A output channel 1 for stepper motor phase A drive; connect to motor winding."+ },+ {+ "number": "5",+ "name": "AOUT1",+ "type": "output",+ "description": "Winding A output channel 1 (parallel pin) for stepper motor phase A drive; connect to motor winding."+ },+ {+ "number": "6",+ "name": "AOUT2",+ "type": "output",+ "description": "Winding A output channel 2 for stepper motor phase A drive; connect to motor winding."+ },+ {+ "number": "7",+ "name": "AOUT2",+ "type": "output",+ "description": "Winding A output channel 2 (parallel pin) for stepper motor phase A drive; connect to motor winding."+ },+ {+ "number": "8",+ "name": "BOUT2",+ "type": "output",+ "description": "Winding B output channel 2 for stepper motor phase B drive; connect to motor winding."+ },+ {+ "number": "9",+ "name": "BOUT2",+ "type": "output",+ "description": "Winding B output channel 2 (parallel pin) for stepper motor phase B drive; connect to motor winding."+ },+ {+ "number": "10",+ "name": "BOUT1",+ "type": "output",+ "description": "Winding B output channel 1 for stepper motor phase B drive; connect to motor winding."+ },+ {+ "number": "11",+ "name": "BOUT1",+ "type": "output",+ "description": "Winding B output channel 1 (parallel pin) for stepper motor phase B drive; connect to motor winding."+ },+ {+ "number": "12",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connection for motor power supply; connect to system ground."+ },+ {+ "number": "13",+ "name": "VM",+ "type": "power_in",+ "description": "Motor power supply voltage input ranging 4.5V to 33V; bypass with 0.01µF ceramic capacitor and bulk capacitor to PGND."+ },+ {+ "number": "14",+ "name": "GND",+ "type": "power_in",+ "description": "Device logic ground; connect to system ground."+ },+ {+ "number": "15",+ "name": "DVDD",+ "type": "power_out",+ "description": "Internal regulator output providing 4.75V to 5.25V logic power; bypass with 0.47µF to 1µF X7R ceramic capacitor to GND."+ },+ {+ "number": "16",+ "name": "nFAULT",+ "type": "output",+ "description": "Fault status indicator open-drain output; pulled low during fault conditions (UVLO, CPUV, OCP, OTSD); requires external pull-up resistor to VCC."+ },+ {+ "number": "17",+ "name": "VREF",+ "type": "power_in",+ "description": "Current set reference input voltage with maximum 2.64V for DRV8425; sets full-scale motor current via current control DAC (KV = 1.32 V/A)."+ },+ {+ "number": "18",+ "name": "M0",+ "type": "input",+ "description": "Microstepping mode setting pin with internal pull-down resistor; configure with M1 to select step resolution from full-step to 1/256 microstep."+ },+ {+ "number": "19",+ "name": "TOFF",+ "type": "input",+ "description": "PWM chopping OFF-time four-level input pin; sets 7µs, 16µs, 24µs, or 32µs OFF duration and ripple current in intelligent tuning mode."+ },+ {+ "number": "20",+ "name": "DECAY1",+ "type": "input",+ "description": "Decay mode setting pin with internal pull-down resistor; configure with DECAY0 to select decay strategy (smart tuning, mixed, slow)."+ },+ {+ "number": "21",+ "name": "DECAY0",+ "type": "input",+ "description": "Decay mode setting pin with internal pull-down resistor; configure with DECAY1 to select decay strategy (smart tuning, mixed, slow)."+ },+ {+ "number": "22",+ "name": "M1",+ "type": "input",+ "description": "Microstepping mode setting four-level input pin; configure with M0 to select step resolution from full-step to 1/256 microstep."+ },+ {+ "number": "23",+ "name": "STEP",+ "type": "input",+ "description": "Stepper motor step command input with internal pull-down; rising edge advances motor one microstep; maximum 500kHz input frequency."+ },+ {+ "number": "24",+ "name": "DIR",+ "type": "input",+ "description": "Motor rotation direction control input with internal pull-down; logic level selects clockwise or counter-clockwise stepping direction."+ },+ {+ "number": "25",+ "name": "ENABLE",+ "type": "input",+ "description": "Device output enable control input with internal pull-up to DVDD; logic low disables all outputs, logic high enables normal operation."+ },+ {+ "number": "26",+ "name": "nSLEEP",+ "type": "input",+ "description": "Sleep mode control input with internal pull-down; logic high enables device, logic low enters 2µA low-power sleep mode; low pulse clears fault."+ },+ {+ "number": "27",+ "name": "CPL",+ "type": "passive",+ "description": "Charge pump negative switching node; connect 0.022µF X7R ceramic capacitor between CPL and CPH for charge pump energy storage."+ },+ {+ "number": "28",+ "name": "CPH",+ "type": "passive",+ "description": "Charge pump positive switching node; connect 0.022µF X7R ceramic capacitor between CPH and CPL for charge pump energy storage."+ },+ {+ "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": [+ "extractor flagged: Thermal pad (PAD) is present on HTSSOP-28-EP but has no pin number; per mechanical diagram on page 4",+ "exposed pad 29 added from the footprint"+ ],+ "pages_sent": 56,+ "cost_usd": 0.4782,+ "at": "2026-09-23T09:05:55"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/drv8425",+ "pages": 56,+ "sha256": "d2894da743bf3f58",+ "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]"+ }+}