Some questions concerning the MCT8316Z (BLDC Driver)
• "T" (HW) Vs. "R" (SPI) configuration
o In the "R" the Direction is defines through SPI while the PWM still managed through HW pin. Why?
is it intend for a special operation (i.e. constant direction …) ?
o What is the meaning of the note "Texas Instruments recommends motor direction (DIR) change when the motor is stationary"? in controlled or stabilized system the Direction is constantly changed (i.e. during operation).
• Current Limit Function:
o The I-Limit defines as "0A to 8A", what is the real minimum controlled current (i.e. can the driver stabilize 2mA for example) ?
o What is the current resolution of the I-Limit ?
o Can the I-Limit in the "T" configuration be operated in synchronous mode ?
o In the "T" configuration, can the PWM and I-Limit be operated together in order to achieve a better current stabilization (i.e. for example, to operate the PWM in 50KHz or 100KHz with higher duty cycle than require just to let the "cycle by cycle" to operate in higher freq. then the internal 20KHz) ?
o What I-Limit features or limitations exist only in the "T" or only in the "R" configurations ?
o Any App. Note for the I-Limit Feature ?