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DRV8662EVM: High Voltage Driver for Multi-piezo actuators

Kate Lee
Prodigy 250 points
Part Number: DRV8662EVM
Other Parts Discussed in Thread: DRV2605LEVM-MD, , DRV8662

Hello,

I hope you are well. I am looking for a haptic driver that can actuate multiple piezo actuators and switch around actuators. I am currently using the DRV8662EVM and it works very well but it can only power one actuator. I know that the DRV2605LEVM-MD can do this, but the output voltage range is too low for our purposes. Is there something similar to the DRV2605LEVM-MD that works with output voltages of around 200Vpp or higher?

Thank you for your help.

Kate

  • 0
    TI__Expert 8832 points
    Hi Kate,

    Thank you for posting to the haptic E2E forum. I'm sorry to inform you that we do not currently have a multi-driver board for our piezo drivers like the DRV8662. My suggestion would be to use multiple EVMs in parallel. You could hook up the ENABLE pins to a microcontroller to enable different EVMs.
  • 0 in reply to Kelly Griffin
    Prodigy 250 points

    Hi Kelly,

    Sorry I just have a few more questions. Would it be possible to connect multiple DRV8662 to a microcontroller instead of multiple EVMs? If this is possible, could you give us some tips on how it could be done? Or would the connections become too complicated in this case?

    Thanks so much for your help.

    Kate