Can Allegro bend the leads under the package or outward, so that I can surface-mount the ACS754?
In order to safely conduct 200 A currents, the power leadframe in the ACS754 has been constructed with a relatively heavy gauge. Because of this heavy gauge, the terminal leads are not very flexible. If the ACS754 is surface-mounted, small amounts of board flex, or the action over time of thermal expansion and contraction, would break the IC off the board. Allegro does not believe surface-mounting is practical for this device.