20-W STEREO CLASS-D AUDIO POWER AMPLIFIER
TPA3100D2-Q1
QFN www.ti.com ...............................................................................................
Description
TPA3100D2-Q1
QFN www.ti.com ......................................................................................................................................................................................... SLOS557 – SEPTEMBER 2008
20-W STEREO CLASS-D AUDIO POWER AMPLIFIER
FEATURES
1
Qualified for Automotive Applications 20 W/Channel Into an 8-Ω Load From
an 18-V Supply
10 W/Channel Into an 8-Ω Load From a 12-V Supply
15 W/Channel Into an 4-Ω Load From a 12-V Supply
Operates From 10 V to 26 V 92% Efficient Class-D Operation Eliminates
Need for Heat Sinks
Four Selectable Fixed-Gain Settings Differential Inputs Thermal and Short-Circuit Protection With
Auto-Recovery Feature
Clock Output for Synchronization With Multiple Class-D Devices
Surface Mount 7-mm × 7-mm 48-pin QFN (RGZ) Package
APPLICATIONS
Televisions
DESCRIPTION
The TPA3100D2 is a 20-W per channel, efficient, class-D audio power amplifier for driving bridged-tied stereo speakers. The TPA3100D2 can drive stereo speakers as low as 4 Ω. The high efficiency of the TPA3100D2, 92%, eliminates the need for an external heat sink when playing music.
The gain of the amplifier is controlled by two gain select pins. The gain selections are 20 dB, 26 dB, 32 dB, or 36 dB.
The outputs are fully protected against shorts to GND, VCC, and output-to-output shorts with an auto-recovery feature and monitor output.
TV Audio Processor
1 mF
1 mF
1 mF 1 mF
Shutdown Control
Mute Control
Gain Selec...
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