TPA3111D1

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPA3111D1 SLOS618F – AUGUST 2009 – REVISED JULY 2016 TPA3111D1 10-W Filter-Free Mono Class-D Audio Power Amplifier With Speaker Guard™ 1 Features 1 10-W into an 8-Ω Load at 10% THD+N From a 12-V Supply 7-W into an 4-Ω Load at 10% THD+N From a 8-V Supply 94% Efficient Class-D Operation into 8-Ω Load Eliminates Need for Heat Sinks Wide Supply Voltage Range Allows Operation from 8 to 26 V Filter-Free Operation SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter Plus DC Protection Flow-Through Pinout Facilitates Easy Board Layout Robust Pin-to-Pin Short-Circuit Protection and Thermal Protection With Auto-Recovery Option Excellent THD+N and Pop-Free Performance Four Selectable, Fixed Gain Settings Differential Inputs 2 Applications Televisions Monitors and Laptops Consumer Audio Equipment 3 Description The TPA3111D1 device is a 10-W, efficient, Class-D audio power amplifier for driving a bridge tied speaker. Advanced EMI suppression technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard speaker protection system includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter lets the user to set a virtual voltage rail lower than the chip supply to limit the current through the speaker. The DC Detect circuit measures the frequency and amplitude of the PW...