Date: 13/09/2011

3 phase brushless motor pre-driver IC drives upto 60A

Texas Instruments Incorporated (TI) says its new device DRV8301, an integrated three-phase brushless motor pre-drivers, reduces board space as much as 60 percent compared to the next closest integrated solution. DRV8301 can drive sub-10-A to 60-A external FETs, provides current scalability, improved thermal performance and efficiency in brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) applications, such as ventilation pumps, medical pumps, commercial refrigeration cooling systems, robotics, power tools, e-bikes and other high-torque industrial motor control applications.

Key features and benefits as per TI include:
Three-phase brushless gate driver: Provides gate drive current up to 1.7-A source and 2.3-A sink from a single 8-V to 60-V supply. Slew rate and dead-time can be adjusted to optimize performance.
1.5-A step-down voltage regulator: Operating from 3.5 V to 60 V, the regulator provides power for the MCU or other system components.
Two bi-directional current-sense amplifiers: Includes adjustable gain, output offset and DC calibration circuitry to reduce board space and system cost. The DC calibration circuitry minimizes DC offset and drift over temperature to improve motor performance.
Fully protected: Two-stage thermal, cycle-by-cycle over current protection, under-voltage, and shoot through protection with detailed fault feedback reduces design complexity and improves system reliability.

Package: 14-mm x 8.1-mm HTSSOP package
Available: Now,
Price: $2.50 for 1K units

For more information visit: www.ti.com