公开(公告)号：US20250048028A1

公开(公告)日：2025-02-06

申请号：US18362265

申请日：2023-07-31

Applicant: Texas Instruments Incorporated

Inventor： Pourya Assem ,  Kevin Scoones ,  Pavol Balaz ,  Tim Merkin ,  Zejian Wang ,  Jianquan Liao

IPC: H04R3/02

Abstract: An apparatus includes a first power stage circuit having a first output and a power terminal, and a second power stage circuit having a second output and the power terminal. The apparatus further includes a control circuit having a control input, a first control output, and a second control output. In an example, the control input is coupled to the power terminal, the first control output is coupled to the first output, and the second control output is coupled to the second output. In an example, the control circuit is configured to, responsive to a first voltage at the power terminal being below a threshold voltage, set the first and second outputs to a second voltage.