Hi,
I need to use the haptic driver DRV8662 to drive a piezo transducer to peak voltages of 200V. I have removed the on board input filter as my input signal is only a sinusoid, with peak to peak 3V, centred at 1.6V and frequnecies varying from 1 to 10KHz. However, the max peak voltage able to reach is only 50-60V as against 200V when operating in Mode 8. Also the peak voltages keep changing for different frequencies of the sinusoid. Do you know why this happens so? I'm powering the driver with a 3.3 V source. Thank you!
Karun