TPA3111D1QPWPRQ1

TPA3111D1QPWPRQ1 编带

Description

The TPA3111D1-Q1 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™ protection circuitry includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter allows the user to set a virtual voltage rail lower than the chip supply to limit the amount of current through the speaker. The DC-detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.

Features

• Qualified for Automotive Applications

• AEC-Q100 Qualified with the Following Results:

   – Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range

   – Device HBM ESD Classification Level H2

   – Device CDM ESD Classification Level C2

• 10-W into an 8-Ω Load at 10% THD+N from a 12-V Supply

• 7-W into a 4-Ω Load at 10% THD+N from an 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 Pin Out 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

Applications

• Automotive Noise Generation for HEV/EV

• Automotive Emergency Call eCall Systems

• Automotive Infotainment Systems Head Unit, Cluster, Telematics, Navigation

• Automotive Connectivity Gateway

• Professional Audio Equipment PA Speakers, Studio Headphones, Performance Amplifiers, Premium Microphones

• Aerospace and Aviation Audio Systems