Overview
The TPA3110D2-Q1 is a high-efficiency, 15-W per channel Class-D audio power amplifier designed by Texas Instruments. This device is optimized for driving bridged-tied stereo speakers and is known for its advanced EMI suppression and filter-free operation. The amplifier features a wide supply voltage range from 8 V to 26 V, making it versatile for various applications. It also includes robust protection mechanisms such as short-circuit protection, thermal protection with auto-recovery, and SpeakerGuard™ protection circuitry. The TPA3110D2-Q1 is AEC-Q100 qualified, ensuring its reliability in automotive and other demanding environments.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Continuous Output Power (THD+N = 10%, f = 1 kHz, VCC = 16 V) | 15 | W | ||
| Supply Voltage Range | 8 | 26 | V | |
| Operating Free-Air Temperature | -40 | 125 | °C | |
| Operating Junction Temperature | -40 | 150 | °C | |
| Storage Temperature | -65 | 150 | °C | |
| Minimum Load Resistance (BTL, PVCC ≤ 15 V) | 3.2 | Ω | ||
| Total Harmonic Distortion + Noise (THD+N) at 1 kHz, PO = 7.5 W | 0.1% | % | ||
| Signal-to-Noise Ratio (SNR) at 1 kHz, Gain = 20 dB, A-weighted | 102 | dB | ||
| Junction-to-Ambient Thermal Resistance (θJA) | 30.3 | °C/W |
Key Features
- 90% efficient Class-D operation, eliminating the need for an external heat sink.
- Filter-free operation.
- Advanced EMI suppression.
- Wide supply voltage range from 8 V to 26 V.
- Robust pin-to-pin short-circuit protection and thermal protection with auto-recovery option.
- SpeakerGuard™ protection circuitry including adjustable power limiter plus DC protection.
- Flow-through pin out facilitates easy board layout.
- Excellent THD+N and pop-free performance.
- Four selectable fixed gain settings.
- Differential inputs.
Applications
- Automotive noise generation for HEV/EV and ADAS noise generation for blind spot detection.
- Automotive emergency call systems (eCall) and infotainment systems.
- Security and alarm systems.
- Professional audio equipment such as performance amplifiers and premium microphones.
- Aerospace and aviation audio systems.
Q & A
- What is the maximum output power of the TPA3110D2-Q1?
The TPA3110D2-Q1 can deliver up to 15 W per channel into an 8-Ω load at 10% THD+N from a 16-V supply.
- What is the operating temperature range of the TPA3110D2-Q1?
The operating free-air temperature range is from -40°C to 125°C.
- Does the TPA3110D2-Q1 require an external heat sink?
No, due to its 90% efficient Class-D operation, it typically does not require an external heat sink.
- What kind of protection mechanisms does the TPA3110D2-Q1 have?
The device includes robust pin-to-pin short-circuit protection, thermal protection with auto-recovery, and SpeakerGuard™ protection circuitry.
- What is the supply voltage range for the TPA3110D2-Q1?
The supply voltage range is from 8 V to 26 V.
- What are the key applications of the TPA3110D2-Q1?
Key applications include automotive systems, professional audio equipment, and aerospace and aviation audio systems.
- Does the TPA3110D2-Q1 support differential inputs?
- What is the junction-to-ambient thermal resistance of the TPA3110D2-Q1?
The junction-to-ambient thermal resistance (θJA) is 30.3°C/W.
- Is the TPA3110D2-Q1 AEC-Q100 qualified?
- What is the signal-to-noise ratio (SNR) of the TPA3110D2-Q1?
The signal-to-noise ratio (SNR) is 102 dB at 1 kHz, Gain = 20 dB, A-weighted.
