2.5 A bipolar stepper driver with 1/32 microstepping
The DRV8825PWP is a fully integrated bipolar stepper motor driver from Texas Instruments, combining the control logic and power MOSFET output stage in a single 28-PowerTSSOP package. It drives one two-phase stepper motor at up to 2.5 A per winding from an 8.2 V to 45 V supply rail — covering common 12 V, 24 V, and 36 V industrial bus voltages. The 1/32 microstepping resolution (step resolution 1 through 1/32) delivers smooth low-speed rotation and reduces the audible noise and mechanical resonance that plague full-step drives. This makes it a natural fit for CNC spindles, 3D printer axes, and lab automation stages where position ripple matters. The logic interface is simple STEP/DIR or parallel control — no SPI or I2C setup required, so a basic microcontroller with a few GPIO pins can run it. The four half-bridge outputs (two H-bridges) directly drive the stepper phases without external FETs or bootstrap diodes.
Active lifecycle and standard supply
RoHS3 compliance (ROHS3 Compliant) means no restricted substances above the exemption thresholds — the part ships into EU, UK, and global markets without additional compliance paperwork. The tube packaging (Tube) suits low-to-mid volume assembly; for high-volume tape-and-reel, order the DRV8825PWPR variant.
Package, thermal, and board integration
A 4-layer board with thermal vias under the pad is recommended for continuous high-current operation. The surface-mount package (Mounting Type: Surface Mount) requires reflow soldering — not hand-solder friendly for prototyping without a hot-air station. The tube quantity is typically 50 or 60 pieces per tube, depending on the TI packing standard.