TPA3117D2
TPA3117D2 is 15-W Filter-Free Stereo Class-D Audio Power Amplifier manufactured by Texas Instruments.
FEATURES
- 2 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
- Speaker Guard™ Speaker Protection Includes
Adjustable Power Limiter
- Excellent THD+N / Pop-Free Performance
- Four Selectable, Fixed Gain Settings
- Differential Inputs
- Selectable Switching Frequency (290k Hz or
390k Hz) Allows Multiple Devices to be Used in One System
- Integrated 5V Regulator With up to 30 m A of Output Current for Powering External Data Converters
- 5mm x 5mm QFN Packaging
APPLICATIONS
- Televisions
- Consumer Audio Equipment
- All-in-One puters
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. Speaker Guard™ 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
.
SPACER
OUTL+ Audio OUTLSource
OUTR+ OUTR-
2.2m F
10W
1m F
LINP LINN
RINP RINN
GAIN0 GAIN1 REG_OUT PLIMIT PBTL
FSEL SD
OUTPL OUTNL
OUTPR OUTNR
PVCC
FERRITE BEAD...