Other Parts Discussed in Thread: DRV10970, MCT8316Z, , DRV8304, DRV8320, DRV8340-Q1
Good Morning,
I need to implement a system for a sensored control of a brushless motor, 12V, maximum peak current of 7A (stall current of the motor, however the application may require smaller peak currents, this has yet to be investigated).
I need to select the most suitable motor driver, which already integrates the logic for controlling commutation, therefore an external controller is not needed.
The best choice would be a driver with integrated mosfets:
- DRV10970 could have been an appropriate choice; however, it can only provide up to 1.5A peak current; it will most likely not be sufficient for the application;
- MCT8316Z solves the peak current issue; however, i see that it is still a preview, therefore it would not be a good choice for an immediate evaluation, since we need to go in production as quick as possible;
However, also gate driver can be taken into account:
- DRV8306 seems the most appropriate choice, since it implements simple speed PWM and direction controls + Hall sensors inputs; however, i see that you do not provide information on the evaluation board anymore and that the ev. boards can still be found on vendors' websites but they are marked as obsolete; i'm asking the reason for that; is such component going to become obsolete in the next future?
- then i see that there are several gate drivers that are quite similar; i checked DRV8304, DRV8320, DRV8340; i see that all of them allow also for external control (6x and 3x PWM modes) that i don't need; however, i see that they can also be used with integrated trapezoidal control (1xPWM mode, in which other control inputs are connected to the Hall sensors and i need only to control speed with single PWM and direction) that is what i need; also, i would use the hardware configuration, no SPI. Can you tell me the main differences between these part numbers also according to my application? If there are any key difference factors that i need to consider?
Thank you so much. Kind regards.