Hello guys !
I'm trying to design the simplest possible hysteretic buck current source : mesure current using a sense resistor, a comparator with hysteresis, and drive the switch accordingly.
For this, I need a comparator with a common mode input voltage range between 0V and 28V, Vcc either +5V or +28V, and not too slow (0.5 us would be OK). And I can't find any.
So, if by any chance you guys have a suggestion...
I'm trying to design the simplest possible hysteretic buck current source : mesure current using a sense resistor, a comparator with hysteresis, and drive the switch accordingly.
For this, I need a comparator with a common mode input voltage range between 0V and 28V, Vcc either +5V or +28V, and not too slow (0.5 us would be OK). And I can't find any.
So, if by any chance you guys have a suggestion...