The Texas Instruments DRV8801QRTYRQ1 is a fully integrated DMOS motor driver that combines control logic and power stage in a single 16-QFN package. It drives one brushed DC motor or one bipolar stepper motor using two half bridges, with a continuous output current rating of 2.8 A. The part operates from a single 8 V to 38 V supply rail, covering both the logic and motor supply. It is qualified to AEC-Q100, making it suitable for automotive under-hood and chassis-domain applications such as HVAC actuators, headlamp leveling, and transmission solenoids.
2.8 A output — sizing the load budget
The 2.8 A continuous rating is the per-device limit, not per half-bridge. For a brushed DC motor, both half bridges can be paralleled to increase current handling, but the total package dissipation still governs. The 16-QFN with exposed pad needs a good thermal via pattern to the ground plane to keep junction temperature below 150°C at full load. For stepper applications, each phase sees the full 2.8 A, so winding resistance and duty cycle must be checked against the thermal budget.
Automotive temperature range — what it covers
The part is rated for continuous operation at 150°C junction.
The part is ROHS3 compliant. The part is also available in Cut Tape (CT) for prototyping, though production volumes typically order on Tape & Reel (TR).