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DRV8824PWPR

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Texas Instruments Stepper Motor Driver, HTSSOP-28. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

markdown

DRV8824PWPR

Texas Instruments · Stepper Motor Driver · HTSSOP-28

DRV8824PWPR 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; connect 0.01-µF 50-V capacitor between CP1 and CP2.
2 CP2 bidirectional Charge pump flying capacitor; connect 0.01-µF 50-V capacitor between CP1 and CP2.
3 VCP bidirectional High-side gate drive voltage; connect 0.1-µF 16-V ceramic capacitor.
4 VMA power_in Bridge A motor power supply (8.2 to 45 V); bypass with 0.1-µF capacitor and bulk capacitance.
5 AOUT1 output Bridge A motor output 1; connect to stepper motor winding A.
6 ISENA bidirectional Bridge A current sense node; connect current sense resistor to measure winding A current.
7 AOUT2 output Bridge A motor output 2; positive current flows AOUT1 to AOUT2.
8 BOUT2 output Bridge B motor output 2; positive current flows BOUT1 to BOUT2.
9 ISENB bidirectional Bridge B current sense node; connect current sense resistor to measure winding B current.
10 BOUT1 output Bridge B motor output 1; connect to stepper motor winding B.
11 VMB power_in Bridge B motor power supply (8.2 to 45 V); bypass with 0.1-µF capacitor and bulk capacitance.
12 AVREF input Bridge A current set reference input (1 to 3.5 V); voltage source sets winding A current magnitude.
13 BVREF input Bridge B current set reference input (1 to 3.5 V); voltage source sets winding B current magnitude.
14 GND power_in Device ground; connect to system ground plane.
15 V3P3OUT power_out 3.3-V internal regulator output (3.18 to 3.42 V at 25°C); bypass with 0.47-µF capacitor.
16 nRESET input Active-low reset input; initializes step indexer and disables H-bridge driver outputs.
17 nSLEEP input Sleep mode control input; low enables sleep mode, high enables normal operation.
18 nFAULT output Open-drain active-low fault output; driven low for overtemperature or overcurrent faults.
19 DECAY input Decay mode selector input; low = slow decay, open = mixed decay, high = fast decay.
20 DIR input Direction input; determines motor step direction (forward or reverse).
21 nENBL input Active-low enable input; disables outputs and ignores STEP when driven high.
22 STEP input Step input; rising edge advances indexer one step in current mode.
23 NC unconnected No connect; leave this pin unconnected.
24 MODE0 input Microstep mode input 0; MODE0-2 select full, 1/2, 1/4, 1/8, 1/16, or 1/32 steps.
25 MODE1 input Microstep mode input 1; MODE0-2 select full, 1/2, 1/4, 1/8, 1/16, or 1/32 steps.
26 MODE2 input Microstep mode input 2; MODE0-2 select full, 1/2, 1/4, 1/8, 1/16, or 1/32 steps.
27 nHOME output Open-drain active-low home status output; driven low when indexer at home position.
28 GND power_in Device ground; connect to system ground plane.
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: DRV8824PWPR
  • Footprint: Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm
  • 3D model: HTSSOP-28 (KiCad packages3D, STEP)
  • 3D model files: drv8824pwpr-etched.step / drv8824pwpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); drv8824pwpr.step / drv8824pwpr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 9e017d4c2fe860a9, retrieved 2026-09-21, 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-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