TPA3002D2
www.ti.com
SLOS402C − DECEMBER 2002 − REVISED JANUARY 2004
9ĆW STEREO CLASSĆD AUDIO POWER AMPLIFIER
WITH DC VOLUME CONTROL
FEATURES
D 9-W/Ch Into an 8-Ω Load From 12-V Supply
D Efficient, Class-D Operation Eliminates
D
D
D
D
D
DESCRIPTION
The TPA3002D2 is a 9-W (per channel) efficient, Class-D
audio amplifier for driving bridged-tied stereo speakers.
The TPA3002D2 can drive stereo speakers as low as 8 Ω.
The high efficiency of the TPA3002D2 eliminates the need
for external heatsinks when playing music.
Heatsinks and Reduces Power Supply
Requirements
32-Step DC Volume Control From −40 dB to
36 dB
Line Outputs For External Headphone
Amplifier With Volume Control
Regulated 5-V Supply Output for Powering
TPA6110A2
Space-Saving, Thermally-Enhanced
PowerPAD Packaging
Thermal and Short-Circuit Protection
Stereo speaker volume is controlled with a dc voltage
applied to the volume control terminal offering a range of
gain from –40 dB to 36 dB. Line outputs, for driving external
headphone amplifier inputs, are also dc voltage controlled
with a range of gain from –56 dB to 20 dB.
An integrated 5-V regulated supply is provided for
powering an external headphone amplifier.
APPLICATIONS
D LCD Monitors and TVs
D Powered Speakers
10 µF
Cs
0.1 µF
Cs
0.1 µF
RINN
RINP
Crinn
Crinp 1 µF
1 µF
Clinp
LINP
LINN
1 µF
10 nF
Cbs
BSRP
PVCCR
PVCCR
ROUTN
PGNDR
Cs
PGNDR
PVCCR
SD
ROUTN
BSRN
SDZ
PVCCR
Cs
ROUTP
Cbs
PVCC
10 µF
ROUTP
PVCC
10 nF
Ccpr
VCLAMPR
MODE_OUT
RINN
1 µF
Clinn
VREF
MODE_OUT
AVCC
LINP
MODE
VAROUTR
LINN
1 µF
1 µF
MODE
V2P5
C2p5
RINP
RLINE_OUT
VAROUTL
TPA3002D2
AVDDREF
AGND
VREF
AVDD
VARDIFF
VARDIFF
VARMAX
ROSC
Cvdd
Cosc
100 nF
220 pF
Rosc
120 kΩ
Cs
Cbs
10 nF
PVCC
BSLP
PVCCL
PVCCL
LOUTP
LOUTP
PGNDL
PGNDL
LOUTN
LOUTN
VCLAMPL
PVCCL
AGND
REFGND
PVCCL
VOLUME
BSLN
VOL
REFGND
Cvcc
10 µF
LLINE_OUT
AVDD
COSC
VARMAX
AVCC
Cs
0.1 µF
Ccpl
1 µF
10
kΩ
10
kΩ
Cs
0.1 µF
Cs
0.1 µF
10 µF
10 µF
Cs
Cbs
10 nF
PVCC
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.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright 2002−2004, Texas Instruments Incorporated
