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
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