Integrated switching circuit of a power switch with galvanically separated control

摘要

An integrated circuit includes a power switch and is equipped with a switching signal input terminal, from which is taken a switching signal path to the control electrode (gate) (G) of the power switch. The integrated circuit (1) has a device (3) for electrical isolation in the switching signal path (4,5). The integrated circuit is specifically provided with an additional logic circuit, which is arranged in the switching signal path between the switching signal input terminal (2) and the electrical isolation device (3). The additional logic circuit is a SPI- interface.