The TPA3140D2 is an efficient, Class-D audio power amplifier for driving bridged-tied stereo speakers at up to 10 W, 6 Ω, or 8 Ω (per channel).
Advanced EMI Suppression Technology with Spread Spectrum Control and 1SPW modulation scheme enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements for system cost reduction. TPA3140D2 is not only fully protected against shorts and overload, the SpeakerGuard™ speaker protection circuitry includes an adjustable Automatic Gain Limit (AGL), an adjustable power limiter and a DC detection circuit for protection of the connected speakers. The AGL allows adjustment of the maximum output voltage without signal clipping for enhanced speaker protection and audio quality. The DC detect and Pin-to-Pin, Pin-to-Ground, and Pin-to-Power Short Circuit protection circuit protect the speakers from output DC and pin shorts caused in production. The outputs are also fully protected against shorts to GND, PVCC, and output-to-output. The short-circuit protection and thermal protection includes an auto recovery feature.
The TPA3140D2 can drive stereo speakers with as low as 4-Ω impedance. The high efficiency of the TPA3140D2, 90% with an 8-Ω load, eliminates the need for an external heat sink, and TPA3140D2 will be able to output full power on a 2-layer PCB.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPA3140D2 10-W Inductor Free Stereo (BTL) Class-D Audio Amplifier with Ultra Low EMIand AGL datasheet (Rev. B) | PDF | HTML | 18 Dec 2017 |
| 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 | The bq27426 Performace Under Dynamic Battery Voltage for Portable Audio Applicat | 09 Oct 2017 | ||
| EVM User's guide | TPA3140D2EVM User's Guide | 03 Apr 2015 | ||
| Application note | TPA3140D2 Design Considerations for EMC | 13 Feb 2015 | ||
| Application note | TPA3140D2 PLIMIT and AGL | 23 Jan 2015 | ||
| Application note | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 01 May 2013 |
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The TPA3140D2 is an efficient class D audio power amplifier for driving bridged-tie stereo speakers at up to 10W (per channel)
The TPA3140D2 utilizes advanced EMI suppression technology with spread spectrum control and 1SPW modulation scheme enables the use of inexpensive ferrite bead filters at the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
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