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DRV8425PPWPR

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Texas Instruments Stepper Motor Driver, HTSSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DRV8425PPWPR

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); drv8425ppwpr.step / drv8425ppwpr.glb are 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF