Semiconductor device for load drive circuit

摘要

A semiconductor device for a load drive circuit includes a main LDMOS device and a sense LDMOS device that are connected to each other in parallel to form a current mirror circuit. The main LDMOS device and the sense LDMOS device have plural drain cells and plural source cells that are arranged to form a generally square shape as a whole. In the plural drain cells, drain cells of the sense LDMOS device are arranged along a diagonal of the generally square shape.