公开(公告)号：ITMI20002125A1

公开(公告)日：2002-04-02

申请号：ITMI20002125

申请日：2000-10-02

Applicant: ST MICROELECTRONICS SRL

Inventor： AIELLO NATALE ,  LA BARBERA ATANASIO ,  RANDAZZO VINCENZO ,  TORRISI GIOVANNI LUCA

IPC: H05B41/285

Abstract: An electronic thermal protection circuit is for high currents which can occur in the start-up phase in lighting converters. The circuit is associated with a power device having an output terminal connected to an electric load and at least one control terminal receiving a predetermined driving current value by a driving circuit portion. Advantageously, an integrated temperature sensor is provided to detect the temperature of the power device, and an output stage is connected downstream of the sensor to switch off the driving circuit portion when a predetermined operation temperature is exceeded.