The TPA3110D2-Q1 is a 15-W (per channel) efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers. 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.
The TPA3110D2-Q1 can drive stereo speakers as low as 4 Ω. The high efficiency of the device, 90%, eliminates the need for an external heat sink when playing music.
The outputs are also fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPA3110D2-Q1 15-W Filter-Free Stereo Class-D Audio Power Amplifier With SpeakerGuard™ datasheet (Rev. B) | PDF | HTML | 09 Sep 2015 |
| Application note | Using Thermal Calculation Tools for Analog Components (Rev. A) | 30 Aug 2019 | ||
| Application note | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 26 Aug 2019 | ||
| Application note | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 27 Jun 2019 | ||
| Application note | Short-to-Battery Protection Strategies for Class-D Amplifiers | 11 Nov 2016 | ||
| User guide | TPA3110D2EVM Audio Amplifier Evaluation Board (Rev. B) | 13 Aug 2015 | ||
| Application note | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 01 May 2013 |
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The TPA3110D2 evaluation module consists of a single 15-W, Class-D, stereo audio power amplifier complete with a small number of external components mounted on a circuit board that can be used to directly drive a speaker with an external analog audio source as the input. The EVM’s default (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
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