Other Parts Discussed in Thread: TINA-TI, DRV2667
Tool/software: TINA-TI or Spice Models
Hi，
My customer is very interested in touch feedback function，and he has suggested that we use the TDK piezo actuators. So right now I need a Piezo Haptic Driver，a touch sensor and a pressure detector.
The general function of the product is using the piezo actuator replace the traditional mechanical switch. It can implement touch，pressure detect and vibration feedback function.
You can also think it as a switch. When user touch the piezo actuator（or the pressure is less than a certain value）can define a function（such as the volume increase），and when user push harder on the same piezo actuatoror （the pressure is greater than a certain value）can define another function（such as the volume decrease ）.And all these functions need vibration feedback.
I want to confirm some applications，Could you please answer these questions ?
1. The DRV2667 is a Piezo Haptic Driver with Boost，it can drive TDK's piezo actuator，there is no problem about this.
2. If the DRV2667 can sense the finger touch on the piezo？
3.If the DRV2667 can detect the pressure on the piezo ？
4. DRV2667 has analog input in spec description. I want to know if the analog input can detect the voltage change（when the force is applied to the piezo actuator，the voltage at its both ends wil change）？
Best regards
Earvin
