TPA3100D2
HTQFP
QFN
www.ti.com
SLOS469D–OCTOBER 2005–REVISED FEBRUARY 2006
20-W STEREO CLASS-D AUDIO POWER AMPLIFIER
FEATURES
APPLICATIONS
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Televisions
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20-W/ch into an 8-Ω Load From a 18-V Supply
10-W/ch into an 8-Ω Load From a 12-V Supply
15-W/ch into an 4-Ω Load From a 12-V Supply
Operates from 10 V to 26 V
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.
92% Efficient Class-D Operation Eliminates
Need for Heat Sinks
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Four Selectable, Fixed Gain Settings
Differential Inputs
The gain of the amplifier is controlled by two gain
select pins. The gain selections are 20, 26, 32,
36 dB.
Thermal and Short-Circuit Protection With
Auto Recovery Feature
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Clock Output for Synchronization With
Multiple Class-D Devices
The outputs are fully protected against shorts to
GND, VCC, and output-to-output shorts with an auto
recovery feature and monitor output.
Surface Mount 7 mm × 7 mm, 48-pin QFN
Package
Surface Mount 9 mm × 9 mm, 48-pin HTQFP
Package
Simplified Application Circuit
1 mF
0.22 mF
TPA3100D2
RINP
RINN
LINN
BSRN
ROUTN
ROUTP
BSRP
1 mF
TV Audio
Processor
1 mF
0.22 mF
1 mF
VCLAMPR
LINP
1 mF
PGNDR
Shutdown
Control
10 nF
SHUTDOWN
MUTE
VREG
1 mF
Mute Control
VBYP
GAIN0
ROSC
Gain Select
100 kW
GAIN1
BSLN
LOUTN
LOUTP
MSTR/SLV
0.22 mF
Sync Control
SYNC
Fault Flag
FAULT
PVCCR
PVCCL
AVCC
BSLP
0.22 mF
10 V to 26 V
VCLAMPL
PGNDL
1 mF
AGND
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2006, Texas Instruments Incorporated