TPA3117D2EVM TPA3117D2EVM Evaluation Module angled board image

TPA3117D2EVM

TPA3117D2EVM Evaluation Module

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Features for the TPA3117D2EVM

  • 15-W/ch into an 8-Ω Loads at 10% THD+N From a 16-V Supply.
  • 10-W/ch into a 8-Ω Mono Load at 10% THD+N From a 13-V Supply.
  • 90% Efficient Class-D Operation Eliminates Need for Heat Sinks.
  • Wide Supply Voltage Range Allows Operation from 8V to 26V.
  • Filter-Free Operation
  • SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter plus DC Protection.
  • Flow Through Pin Out Facilitates Easy Board Layout.
  • Excellent THD+N / Pop-Free Performance.
  • Four Selectable, Fixed Gain Settings.
  • Differential Inputs.

Description for the TPA3117D2EVM

The TPA3117D2 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 TPA3117D2 can drive stereo speakers as low as 4 Ω. The high efficiency of the TPA3117D2, 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.

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