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DRV8251: PCB migration from DRV8872 to DRV8251?

Part Number: DRV8251
Other Parts Discussed in Thread: DRV8872, , DRV8872EVM,


Both DRV8872/DRV8251 have a DDA|8 package.

Can a DRV8872 PCB (like the DRV8872EVM below) be used "as is" with DRV8251 ?

I looked at the DRV8251EVM schematics as reference but I am not sure if some modification on a PCB (based on DRV8872EVM) would be needed.

Can you please confirm if/what modification would be required on a DRV8872 schematics/PCB to use it with DRV8251 instead?

Thanks in advance,


  • Hi Anber,

    It is possible to place the DRV8251 to the DRV8872EVM. You have to remove R7 to disconnect the pull-up resistor on the nFAULT pin (oin 4) of the DRV8872 and connect an external supply up to 5V for the VREF pin (pin 4) of the DRV8251. Note that the current regulation equations is different for both devices. Make sure you read the datasheet of the DRV8251 to select the proper regulation you require.