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MCF8316A: Maximum RPM and electrical speed limit

Part Number: MCF8316A

Hi Team,

According to the datasheet of MCF8316A, the maximum electrical frequency is “up to 1.5kHz”, which might means it could drive a motor which has 12 poles(6 pairs) with up to 15k rpm. However, another tip points out that maximum motor electrical speed(MAX_SPEED) is a 14bit value and can be set as 0x2710 to achieve 1666Hz motor speed, and “Output PWM Switching Frequency“ has range of 10-75 kHz.

So which parameter would be the hard limit? What would happen if I set MAX_SPEED as 0x3FFF which will bring the electrical frequency up above 1.5kHz? Will the motor operate erratically, or will it experience serious errors and fail to operate?

Could you help check this case? Thanks.

Best Regards,

Cherry