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TPA3100D2IRGZRQ1 – Automotive 2×21.8W Class D Audio Amplifier – Texas Instruments

Upgrade your automotive audio systems with the TPA3100D2IRGZRQ1 Class D amplifier from Texas Instruments. This high-efficiency, AEC-Q100 qualified IC delivers crisp 2-channel stereo output while minimizing heat dissipation. Engineered for reliability in demanding environments, it features comprehensive protection circuitry and operates across a wide 10V–26V range—making it ideal for next-generation in-vehicle infotainment.

Key Features

• Power Output: 21.8W per channel @ 8Ω load
• Voltage Range: 10V to 26V DC operation
• Protection: Short-circuit, thermal shutdown, and mute functions
• Automotive Grade: AEC-Q100 qualified for -40°C to 85°C operation
• Signal Integrity: Differential inputs for noise rejection

Technical Specifications

• Package: 48-VFQFN Exposed Pad (7x7mm)
• Interface: 2-channel stereo output
• Switching Frequency: Fixed 1.2MHz (typ) for reduced EMI
• Efficiency: >90% at full power (minimizes heat sinks)
• THD+N: <0.1% (typical at 1W, 8Ω)

Common Applications

• Automotive head units and infotainment systems
• On-board telematics and navigation audio
• Rear-seat entertainment amplifiers
• Commercial vehicle PA systems
• Portable powered speakers with DC input

About Texas Instruments

Texas Instruments (TI) is a global semiconductor leader with over 90 years of innovation in analog and embedded processing. Renowned for rigorous quality standards, TI’s automotive solutions undergo extensive validation to meet ISO/TS 16949 requirements. Their portfolio consistently pushes performance boundaries while ensuring long-term reliability in extreme conditions.

TI’s commitment to automotive excellence includes dedicated product roadmaps for electrification and ADAS, supported by comprehensive documentation and design resources. As a PCX partner manufacturer, TI components undergo additional verification to guarantee supply chain integrity and performance consistency.

About Class D Audio Amplifiers

Class D amplifiers revolutionize audio systems by using pulse-width modulation (PWM) for power delivery, achieving >90% efficiency versus 50-70% in traditional Class AB designs. This efficiency enables compact form factors, reduced cooling requirements, and extended battery life—critical for space-constrained automotive and portable applications.

Modern Class D ICs like this TI solution overcome early limitations with advanced filtering, delivering audiophile-grade SNR (>100dB) and ultra-low distortion. Their inherent noise immunity makes them ideal for electrically noisy environments like vehicles, while integrated protection circuits ensure longevity under unstable power conditions.

Packaging Options

Available for immediate shipment in multiple configurations:

• Tape & Reel (TR) for automated assembly
• Cut Tape (CT) for prototyping
• Digi-Reel® for partial reel requirements

Note: Visuals are representational; refer to datasheet for exact dimensions.

Frequently Asked Questions

Q: Is this IC suitable for 12V car battery systems?
A: Yes, its 10V–26V operating range handles typical automotive 12V systems (including load-dump transients up to 40V).

Q: Does it require external heat sinks?
A: The exposed thermal pad efficiently dissipates heat; most applications require only PCB copper pours—no additional heatsink.

Q: Can I parallel channels for higher power?
A: No, this is a stereo-only device. Consider TI’s mono Class D amplifiers for bridged configurations.

Q: What’s the significance of AEC-Q100 qualification?
A: It certifies operation across automotive temperature extremes (-40°C to 85°C ambient) with validated reliability under vibration and humidity.

Q: Are evaluation modules available?
A: Yes, PCX provides access to TI’s TPA3100D2EVM development board (sold separately).

Q: How does differential input improve performance?
A: It rejects common-mode noise by up to 60dB, critical for clean audio in electrically noisy vehicle environments.

Download full datasheet: PCXCo.com/datasheets/TPA3100D2IRGZRQ1.pdf

Ready to Integrate Superior Audio?

PCX guarantees authentic Texas Instruments components with same-day shipping and dedicated engineering support. Order TPA3100D2IRGZRQ1 today for reliable delivery—limited stock available!