Patent ID: 7759987
Filing Date: 2010-07-20
Classification: H03K

Abstract:
1. A semiconductor integrated circuit comprising: a high-side transistor connected to a first reference potential; a low-side transistor connected to a second reference potential; a level shift circuit connected between the first reference potential and the second reference potential for driving the high-side transistor; and a pre-driver circuit connected to a third reference potential for driving the low-side transistor, wherein a connection point of the high-side transistor and the low-side transistor serves as an output terminal, the level shift circuit has first and second N-type MOS transistors whose gates are driven by the pre-driver circuit, and any one of drains of which is connected to a gate of the high-side transistor, and the semiconductor integrated circuit further comprises a diode whose anode is connected to the drain of the first or second N-type MOS transistor to which the gate of the high-side transistor is not connected, and whose cathode is directly connected to the output terminal.