公开(公告)号：US20240146254A1

公开(公告)日：2024-05-02

申请号：US18050338

申请日：2022-10-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ankur CHAUHAN ,  Orlando LAZARO ,  Kushal MURTHY ,  Andres BLANCO ,  Henry EDWARDS

IPC: H03F1/30 ,  H01L27/02

CPC classification number: H03F1/308 ,  H01L27/0211

Abstract: A power transistor includes an ambient temperature input, a local temperature sensor, an array of transistor cells, and a thermal feedback circuit. The ambient temperature input is configured to receive an ambient temperature signal that is representative of an ambient temperature of the power transistor. The array of transistor cells has a control input. The local temperature sensor is configured to provide a local temperature signal that is representative of a temperature of the array of transistor cells. The thermal feedback circuit is coupled to the ambient temperature input, the local temperature sensor, and the control input. The thermal feedback circuit is configured to modulate a control signal provided at the control input based on a difference between the ambient temperature signal and the local temperature signal.