What the DRV8842PWP is and where it fits
The Texas Instruments DRV8842PWP is a fully integrated motor driver that packs the control logic and power stage into a single 28-HTSSOP package. It drives one brushed DC motor or one bipolar stepper motor using two internal N-channel Power MOSFET half-bridges, each rated for 3.5 A continuous output. The supply and load voltage range of 8.2 V to 45 V covers nominal rails commonly found in industrial automation, printer mechanisms, textile machinery, and general-purpose actuator drives. The parallel interface accepts simple step/direction or PWM signals, making it a drop-in for designs that don't need a serial bus.
Two half-bridges — one motor, not two
The output configuration is two half-bridges. That drives one brushed DC motor (forward/reverse/brake) or one bipolar stepper (full-step, half-step, or microstep via an external indexer). It does NOT drive two independent DC motors simultaneously — that takes a quad half-bridge part like the DRV8811. If your BOM calls for two separate brushed motors, the DRV8842PWP is not the right fit. For a single bipolar stepper, the parallel interface accepts step and direction inputs directly from an MCU or motion controller.
Lifecycle and sourcing posture
The DRV8842PWP carries an Active lifecycle status with ROHS3 compliance. That means it is a safe choice for new designs and production builds without an obsolescence clock. For dual-source planning, the closest functional peer in TI's portfolio is the DRV8811PWPR, but that part delivers four half-bridges at 1.9 A per bridge — a different output stage topology.