Halbleiterbauelement und Elektronisches Steuerungssystem damit

Details

Veröffentlichungs-Nr.

EP3367568

Aktenzeichen

EP17209044

Anmeldetag

20. Dezember 2017

Veröffentlichung

18. August 2021

Erteilung

18. August 2021

Rechtsraum

EP

IPC

H03K17/082H03K17/64

Abstract

There is a need to provide a semiconductor device and an electronic control system including the same while the semiconductor device is capable of continuing normal operation even when a negative surge voltage is applied. According to an embodiment, a driver IC includes an output transistor, a driver control circuit, a negative potential clamp circuit, and an ESD protection circuit. The output transistor is provided between a battery voltage terminal and an output terminal coupled to a load. The driver control circuit switches on-off state of the output transistor by controlling a gate voltage of the output transistor with reference to a voltage of the output terminal. The negative potential clamp circuit turns on the output transistor regardless of control from the control circuit when a negative voltage lower than a predetermined voltage is applied to the output terminal. The ESD protection circuit is provided between battery the voltage terminal and the reference voltage terminal and enters a conduction state when a surge voltage is applied to the battery voltage terminal.

Anmelder

Firma

Renesas Electronics Corporation

Land

🇯🇵 Japan

Fachgebiete