The PWM current regulator uses the smart tune decay mode for motor-audible noise and vibration reduction, increased accuracy, and reduced power dissipation. Internal synchronous rectification control circuitry is provided to improve power dissipation during PWM operation. Protection features include thermal shutdown with hysteresis (OTSD), undervoltage lockout (UVLO), and overcurrent protection (OCP). Special power-up sequencing is not required. The Texas Instruments DRV8845 is supplied in a 6mm x 6mm, 36-pin QFN package with an exposed pad for enhanced thermal performance.