component
DRV8425PPWPR
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDRV8425PPWPR
Texas Instruments · Stepper Motor Driver · HTSSOP-28
DRV8425PPWPR from Texas Instruments, in a HTSSOP-28. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCP | output | Charge pump output, connected to VM through an X7R 0.22µF 16V ceramic capacitor. |
| 2 | VM | power_in | Motor supply voltage, operating from 4.5 V to 33 V, bypassed to PGND with two 0.01µF ceramic capacitors (one per pin) and a bulk capacitor rated for VM. |
| 3 | PGND | power_in | Power ground, connected to system ground. |
| 4 | AOUT1 | output | Winding A output, connected to the motor winding. |
| 5 | AOUT1 | output | Winding A output, connected to the motor winding. |
| 6 | AOUT2 | output | Winding A output, connected to the motor winding. |
| 7 | AOUT2 | output | Winding A output, connected to the motor winding. |
| 8 | BOUT2 | output | Winding B output, connected to the motor winding. |
| 9 | BOUT2 | output | Winding B output, connected to the motor winding. |
| 10 | BOUT1 | output | Winding B output, connected to the motor winding. |
| 11 | BOUT1 | output | Winding B output, connected to the motor winding. |
| 12 | PGND | power_in | Power ground, connected to system ground. |
| 13 | VM | power_in | Motor supply voltage, operating from 4.5 V to 33 V, bypassed to PGND with a 0.01µF ceramic capacitor and a bulk capacitor rated for VM. |
| 14 | GND | power_in | Device ground, connected to system ground. |
| 15 | DVDD | power_out | Internal 5 V logic regulator output (no external load above 2 mA), bypassed to GND with a 0.47µF to 1µF X7R ceramic capacitor rated 6.3 V or 10 V. |
| 16 | nFAULT | output | Open-drain fault indicator that is pulled low during a fault and requires an external pull-up resistor. |
| 17 | VREFB | input | Reference voltage input that sets the full-scale chopping current of H-bridge B; maximum 2.64 V recommended for DRV8425P. |
| 18 | VREFA | input | Reference voltage input that sets the full-scale chopping current of H-bridge A; maximum 2.64 V recommended for DRV8425P. |
| 19 | TOFF | input | Four-level pin that sets the PWM off-time during current chopping and the ripple current in smart tune ripple control mode. |
| 20 | BDECAY | input | Four-level pin that sets the decay mode of H-bridge B. |
| 21 | ADECAY | input | Four-level pin that sets the decay mode of H-bridge A. |
| 22 | BIN2 | input | PWM input for H-bridge B that controls the bridge state, with an internal pull-down. |
| 23 | BIN1 | input | PWM input for H-bridge B that controls the bridge state, with an internal pull-down. |
| 24 | AIN2 | input | PWM input for H-bridge A that controls the bridge state, with an internal pull-down. |
| 25 | AIN1 | input | PWM input for H-bridge A that controls the bridge state, with an internal pull-down. |
| 26 | nSLEEP | input | Sleep mode input: logic high enables the device, logic low enters low-power sleep, internal pull-down; a low pulse clears faults and must not be tied to DVDD. |
| 27 | CPL | passive | Charge pump negative switch pin, connected to CPH through an X7R 0.022µF ceramic capacitor rated for VM. |
| 28 | CPH | passive | Charge pump switch node, connected to CPL through an X7R 0.022µF ceramic capacitor rated for VM. |
| 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:
DRV8425PPWPR - Footprint:
Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm - 3D model: HTSSOP-28 (KiCad packages3D, STEP)
- 3D model files:
drv8425ppwpr-etched.step/drv8425ppwpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);drv8425ppwpr.step/drv8425ppwpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (53 pp, sha256
61208cc09b733204, retrieved 2026-10-12, 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 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).