Part Number:DRV103
Hi, I am youssef Nassar,
i am using DRV103 to control a 12V proportional valve using uC, i get a pwm signal from the uC to an RC circuit to make it analog and connect it to the duty cycle Adj pin, which has a range from 1.3 to 3.9V.
The problem is that when I change the pwm value (as a result it will change the value of the analog voltage to pin 1), the output voltage is always 12V. I don't know if this is normal or not or if the output pin will always give 12V but vary in the current. i haven't try it yet on the valve i only measured the voltage from the output pin with no load.
So I would like to know if this is normal or if i am doing something wrong.
Thanks in advance.