Fully integrated brushed DC driver with SPI diagnostics
The Texas Instruments DRV8873SPWPR is a fully integrated motor driver that combines control logic and a dual NMOS half-bridge power stage in a single 24-HTSSOP package. It drives one brushed DC motor or one winding of a unipolar stepper motor, with the SPI port handling current regulation, slew-rate control, and fault reporting — a step up from simpler PWM-only drivers that lack register-based diagnostics. Rated for 10 A continuous output current across a 4.5 V to 38 V motor supply rail.
The 10 A continuous rating is the headline number for motor-drive BOM sizing. The 38 V load maximum covers 24 V nominal rails with margin for regenerative braking spikes — no external clamp needed for most brushed DC applications. The SPI interface gives you register-based current chopping, slew-rate adjustment, and open-load / overcurrent / overtemperature fault flags. That saves a comparator and a few discretes compared to a driver that only exposes a PWM input and a fault pin.
For procurement planning, this part is qualified for new production builds and has no imminent obsolescence risk.