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DRV8434A: DRV8434APWPR can replace DRV8424PWPR ?

Part Number: DRV8434A
Other Parts Discussed in Thread: DRV8424EVM, , DRV8424,

Hi Team,

Customer would like to know is DRV8434APWPR able to replace DRV8424PWPR? Pins 19 to 21 of the chip are not used. 

8424: 19: TOFF, 20: DECAY1, 21: DECAY0, these three pins are for setting and controlling PWM

8434A: 19: STL_REP, 20: TRQ_CNT/STL_TH, 21: STL_MODE, these three feet are stall detection,

8434A does not have the 3 pins of 8424, how to set and control the PWM mode?