The TPA3110D2 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™ speaker 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 can drive stereo speakers as low as 4 Ω. The high efficiency of the TPA3110D2, 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 15-W Fil ter-Free Stereo Class-D Audio Power Amplifier With Speakerguard™ datasheet (Rev. F) | PDF | HTML | 25 Apr 2017 |
| 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 | ||
| Technical article | What are the building blocks of Bluetooth speakers? | PDF | HTML | 21 Feb 2017 | |
| 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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