Amplifier IC 2 Channel (Stereo) Class D 32-HTSSOP
The TPA3116D2QDADRQ1 is an automotive-grade, high-efficiency Class-D stereo audio power amplifier IC from Texas Instruments. It is designed to drive speakers directly in compact audio systems while maintaining high output power and low heat dissipation. The device is part of the TPA3116-Q1 family, qualified for AEC-Q100 automotive applications, making it suitable for harsh environments such as vehicle infotainment and industrial audio systems.
It operates from a single supply and uses advanced Class-D switching architecture to achieve high efficiency (typically >90%), reducing the need for large heat sinks and improving overall system power efficiency.
🔑 Key Features
Output power capability
Up to 2 × 50 W into 4 Ω (BTL mode at ~21 V)
Wide supply voltage range
4.5 V to 26 V single supply operation
High efficiency Class-D operation
90% efficiency with low idle power loss
Stereo and mono configurations
Supports BTL stereo and PBTL mono modes
Differential and single-ended inputs
Flexible audio input compatibility
Advanced protection features
Overvoltage protection
Undervoltage protection
Overtemperature shutdown
Short-circuit protection
DC detect protection with fault reporting
EMI-optimized design
Reduced electromagnetic interference for easier system compliance
Programmable power limit
Helps protect speakers and manage output levels
Thermally enhanced 32-pin HTSSOP package
Designed for better heat dissipation in compact layouts
Typical Applications
Automotive infotainment systems
Car audio amplifiers
Soundbars and home audio systems
Portable and powered speakers
Industrial audio solutions
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