FEATURES

• 15-W/ch into 8Ω Loads at 10% THD+N From a

16V Supply

• 10-W/ch into 8Ω Loads at 10% THD+N From a

13V 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

• Excellent THD+N / Pop-Free Performance

• Four Selectable, Fixed Gain Settings

• Differential Inputs

• Selectable Switching Frequency (290kHz or

390kHz) Allows Multiple Devices to be Used in

One System

• Integrated 5V Regulator With up to 30 mA of

Output Current for Powering External Data

Converters

• 5mm x 5mm QFN Packaging

APPLICATIONS

• Televisions

• Consumer Audio Equipment

• All-in-One Computers

DESCRIPTION

The TPA3117D2 is a 15W (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. 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 TPA3117D2 can drive stereo speakers as low as

4Ω. 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.