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DRV2700: High voltage Piezo drive

Sudhir Limaye
Prodigy 10 points
Part Number: DRV2700
Other Parts Discussed in Thread: TPS40210, OPA454, LM3478, LM3488, CSD19535

Hi all,

I want to drive PZT transducers with differential voltage between 50 Vpp to 100 Vpp. The drive frequency will be between 1 MHz and 3 MHz. The impedance of the piezo's in this frequency range is between 10 Ohms and 30 Ohms. I want to experiment with different wave shapes. 

The DRV2700 is the closest but cannot drive signals in MHz . Could you please suggest any other parts that can come close to my requirement.

Thanks,

  • 0
    TI__Expert 8721 points

    Hi Sudhir,

    You will need to make a discrete solution. For the boost, you may want to check out the TPS40210. I am not aware of any piezo drivers capable of driving in the megahertz range.
    There are a few other posts in the DC/DC Forum regarding the boost architecture using the PMP5161 or the LM3478/LM3488. For the amplifier stage, maybe the OPA454 or CSD19535 (or similar). Again these will depend on the power needed to drive your piezo load.
    Also: e2e.ti.com/.../659330 
     
    You may want to ask your questions in a more general term instead of listing it under the DRV2700. It will reach a more general audiance. I've referenced a few similar posts above.