Class-D Amplifier External Load Diagnostics

Texas Instruments

Published Date: 01/23/2017

Description

This application report provides design information for an external load diagnostics circuit to detect andidentify electrical faults between the output of an audio amplifier and a target speaker. While theTPA3111D1-Q1 class-D amplifier is used as an example in this application note this design methodologyis relevant for most class-D amplifiers to provide external fault diagnostics.

Parts

Part Number Name Companion Part
TPA3111D1-Q1 TPA3111D1-Q1 Buy Datasheet
TPA3111D1QPWP Q1 TPA3111D1QPWP Q1 Datasheet