Part Number: DRV2700
Hello,
I am trying to get a haptic feedback using piezo with DRV2605/DRV2700 (based on application report SLOA255).
When using the DRV2700 with a signal from DRV2605, there is no feedback can be felt. I also notice that the FB pin does not output 1.3V. Thus my PVDD signal is around 10V instead of 65V.
Piezo that is used for haptic feedback - Z63000Z2910Z 1Z 2 (www.digikey.ca/.../j2rm8v)
Attached is the schematics of the haptic driver circuit (the jumpers are set for position for the piezo driver), power supply section and scope reading of SW pin.
Any recommendations?
Regards,
Leon
