Supply range and output current — the BOM-fit anchors
The DRV8825PWPR runs from a single supply rail spanning 8.2V to 45V, which covers most common 12V, 24V, and 36V motor bus voltages without an extra regulator. The 2.5A continuous output per phase sets the thermal budget for the board — at full load the exposed pad on the 28-HTSSOP package needs a solid via array to the ground plane to keep junction temperature under the 150°C ceiling.
Microstepping resolution and drive architecture
Step resolution goes from full-step down to 1/32 microstep, controlled through the logic interface pins — no SPI or I2C bus required. The four half-bridge outputs drive a single bipolar stepper; the integrated power MOSFETs eliminate the need for external FETs and their associated gate-drive circuitry.
ROHS3 compliant. For a functional alternative with a lower supply minimum (3.0V) and 1.9A output, the DRV8811PWPR shares the same 28-HTSSOP footprint and half-bridge architecture.
Package and thermal layout
Tape & Reel and Cut Tape options are available.