I understand the small ones are affordable (<=3A load) but for larger ones in the 30A-40A range, they are quite expensive, even in volume.
For a hypothetical 20A DC load (automotive application), using a PWM signal at about 25kHz, are there more cost-effective options than a $70 SSR? This is something that will be produced in volume, not a one-off.
What kind of trouble would a bank of parallel MOSFET's with a good heatsink get in to with this kind of load?
For a hypothetical 20A DC load (automotive application), using a PWM signal at about 25kHz, are there more cost-effective options than a $70 SSR? This is something that will be produced in volume, not a one-off.
What kind of trouble would a bank of parallel MOSFET's with a good heatsink get in to with this kind of load?