公开(公告)号：EP1742272A1

公开(公告)日：2007-01-10

申请号：EP05425492.5

申请日：2005-07-08

Applicant: STMicroelectronics S.r.l.

Inventor： Ronsisvalle, Cesare ,  Enea, Vincenzo

IPC: H01L29/78 ,  H01L27/07

CPC classification number: H01L29/7803 ,  H01L27/0259 ,  H01L27/0716 ,  H01L29/7302 ,  H01L29/739 ,  H01L29/7808 ,  H01L29/866

Abstract: A power actuator (20) of the emitter-switched type is described, the power actuator comprising at least one high voltage bipolar transistor (2) and a low voltage DMOS transistor (3) connected in cascode configuration between a collector terminal (C) of the bipolar transistor (2) and a source terminal (S) of the DMOS transistor (3) and having respective control terminals (B,G).
Advantageously according to the invention, the power actuator (20) further comprises at least a Zener diode (21), inserted between the source terminal (S) of the DMOS transistor (3) and the control terminal (B) of the bipolar transistor (2).

Abstract translation: 描述了发射极开关型的电源致动器（20），功率致动器包括至少一个高压双极晶体管（2）和低电压DMOS晶体管（3），其以共源共享结构连接在集电极端子（C）之间 双极晶体管（2）和DMOS晶体管（3）的源极端子（S）并具有各自的控制端子（B，G）。 有利地，根据本发明，功率致动器（20）还包括至少一个齐纳二极管（21），其插入在DMOS晶体管（3）的源极端子（S）和双极晶体管（3）的控制端子 2）。