Fully integrated motor driver for 12 V to 36 V rails
The Texas Instruments DRV8843PWPR is a fully integrated motor driver that combines control logic and power stage in a single 28-HTSSOP package. It drives one bipolar stepper motor or two brushed DC motors using four half-bridge outputs, each rated for 1.75 A continuous. The supply and load voltage range spans 8.2 V to 45 V, covering common industrial rails such as 12 V, 24 V, and 36 V without an external regulator. A parallel interface simplifies connection to a host microcontroller or motion controller.
1.75 A per bridge with wide voltage compliance
Each half-bridge delivers 1.75 A continuous, which translates to roughly 1.75 A per phase for a bipolar stepper or 1.75 A per brushed DC motor channel. The 8.2 V to 45 V operating range means the driver can handle a 12 V nominal rail with headroom for transients, or a 36 V supply for higher-torque applications.
The 150°C TJ max also allows margin for self-heating under continuous 1.75 A load in a warm enclosure. This temperature grade aligns with automotive under-hood requirements, though the part carries no explicit AEC-Q100 qualification in the listing.
For dual-sourcing or a pin-compatible alternate, the DRV8843PWP (non-tape-and-reel variant) shares the same die and package, differing only in shipping medium.