Texas Instruments Inc. has expanded its portfolio of highly integrated DRV8x motor drivers with three new low-voltage devices for brushed dc and stepper motors. The DRV8834, DRV8835, and DRV8836 motor drivers provide a wide, low-voltage operating range, low RDS(ON) and ultra-low sleep currents, slashing power consumption as much as 80% compared to other options to extend battery life, improve thermal performance, and increase system reliability. The devices are also housed in an ultra-small package, reducing board space by as much as 95 % compared to discrete implementations.
Key features and benefits:
- Ultra-smooth motion profiles: On-chip 32-step microstepping indexer and advanced motion control features on the DRV8834 minimize torque ripple for quiet, ultra-smooth motion in applications such as security video cameras, medical, and office automation equipment.
- Extended battery life: Low RDS(ON) of 305 milliohms and an ultra-low sleep current as low as 10 nA improves thermal performance and extends battery life in applications such as toys, e-locks, cameras, point-of-sale printers, and smart meters.
- Drop in and spin: High level of integration, such as an on-chip indexer and current control loops, provides greater intelligence to reduce design complexity while minimizing microcontroller (MCU) MIPS requirements and software development, speeding time to market compared to discrete solutions.
- Reduced board space: Tiny 2 x 3-mm package option for the DRV8835 and DRV8836.
- Advanced on-chip protection: Over-current, over-temperature, shoot-through, and under-voltage lock-out increase system reliability and manufacturing yields.
For more information, contact Texas Instruments Inc., 12500 TI Blvd., Dallas, TX 75243. Phone: (972) 644-5580.