Other Parts Discussed in Thread: DRV8426, DRV8436, DRV8424
Hi Team,
I am using DRV8812 in one of our products.
3.3V will be out I/O logic.
The VM will be 40V generated from a boost converter. The boost converter will be stepping the voltage from 3.3V to 40V.
We are planning to drive a piezo blower with this driver.
1). We need to read the current consumed by the blower while working, so can I take analog readings from the sense resistors at the ISENSx pins to my microcontroller?.
2). What is Decay?. If my understanding is correct, we need to bother about decay only when the direction of the motor is reversed or the motor is stopedd. and decay is the method to making s path to release the stored energy in the inductive load.
3). Which decay mode is preferred in my application?.
4). If my understanding is correct, by the sense resister, we are setting the full-scale current (current chopping) and by xL0 and xL1 pins we are adjusting the % of the full-scale current to be flowing through the load(PWM chopping).
5). What is PWM chopping and current chopping?.