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.