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DRV8332: Selection and recommendation

Adrian Ymeraj
Expert 3750 points
Part Number: DRV8332
Other Parts Discussed in Thread: DRV8353R, DRV8353, DRV8353RS-EVM

Hello team,

at one of my customers, they are planning to develop a motor control application where the motor works with a 48V rail, nominal current of 13A and a frequency of 16-20KHz.

At first I was thinking of the DRV8332 but it has a nominal current of only 8A so it would be working on peak current all the time. Do you have any better suggestion/ recommendation?

Also, could you please recommend any MOS to be added to the gate driver? Due to the high current, the idea is to use 6 discrete mosfets and 3 Rsense.

Please let me know our ideas/suggestions.

Thank you in advance.

Best regards,

Adrian

  • 0
    TI__Guru 61260 points

    Adrian,

    48V, 16-20kHz, 13A nominal, with triple shunt amp is exactly the use case of the DRV8353. We also have the DRV8353R which includes a built-in Buck which can be used to generate your other power supply rail such as a 3.3V, 5V, or 12V.

    Here is a link to the DRV8353RS-EVM: http://www.ti.com/tool/DRV8353RS-EVM

    I would suggest the RS variant because it allows for SPI control and the most flexibility during debug. If you need a non-SPI device you can use the DRV8353RH in final production but I would recommend debugging with the RS device.

    Regards,

    -Adam