The DVR8825 has 1.5 A/phase. The form factor is small (0.6" x 0.8").
However, for the required current, the chip overheats at 24 V. (I am told I need to design for 24 V supply.)
It seems anything around 4 A has a large form factor (e.g., DVR6575 is about 2" x 4"). They also cost significantly more, at least $90.
This paper and matching presentation seems to be evidence that internal-FET drivers exist at higher currents. Although, I did not see in either document what products they used. I found suitable driver chips with external-FETs (like the A4989). But I'd prefer to find at least one internal-FET driver chip.
Also, if you could explain how you found one I would greatly appreciate the knowledge.
However, for the required current, the chip overheats at 24 V. (I am told I need to design for 24 V supply.)
It seems anything around 4 A has a large form factor (e.g., DVR6575 is about 2" x 4"). They also cost significantly more, at least $90.
This paper and matching presentation seems to be evidence that internal-FET drivers exist at higher currents. Although, I did not see in either document what products they used. I found suitable driver chips with external-FETs (like the A4989). But I'd prefer to find at least one internal-FET driver chip.
Also, if you could explain how you found one I would greatly appreciate the knowledge.