TPA3008D2_07 Datasheet, PDF (1/29 Pages) Texas Instruments – 10-W STEREO CLASS-D AUDIO POWER AMPLIFIER

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TPA3008D2
SLOS435A – MAY 2004 – REVISED JULY 2004
10-W STEREO CLASS-D AUDIO POWER AMPLIFIER
FEATURES
• 10-W/Channel Into an 16-Ω Load From a
17-V Supply
• Up to 92% Efficient, Class-D Operation
Eliminates Need For Heatsinks
• 8.5-V to 18-V Single-Supply Operation
• Four Selectable, Fixed Gain Settings
• Differential Inputs Minimizes Common-Mode
Noise
• Space-Saving, Thermally Enhanced
PowerPAD™ Packaging
• Thermal and Short-Circuit Protection
With Auto Recovery Option
• Pinout Similar to TPA3000D Family
APPLICATIONS
• LCD Monitors and TVs
• All-In-One PCs
DESCRIPTION
The TPA3008D2 is a 10-W (per channel) efficient,
class-D audio amplifier for driving bridged-tied stereo
speakers. The TPA3008D2 can drive stereo speakers
as low as 8 Ω. The high efficiency of the TPA3008D2
eliminates the need for external heatsinks when
playing music.
The gain of the amplifier is controlled by two gain
select pins. The gain selections are 15.3, 21.2, 27.2,
and 31.8 dB.
The outputs are fully protected against shorts to
GND, VCC, and output-to-output shorts. A fault ter-
minal allows short-circuit fault reporting and automatic
recovery. Thermal protection ensures that the maxi-
mum junction temperature is not exceeded.
PVCC 10 µF
220 nF
0.1 µF
10 µF ^PVCC
0.1 µF
220 nF
Shutdown/Mute
Control
Right Differential
Inputs
Left Differential
Inputs
Gain
Control
0.47 µF
0.47 µF
0.47 µF
0.47 µF
0.47 µF
SHUTDOWN
RINN
RINP
V2P5
LINP
LINN
AVDDREF
NC
GAIN0
GAIN1
FAULT
NC
TPA3008D2
VCLAMPR
NC
NC
AVCC
NC
NC
AGND
AVDD
COSC
ROSC
AGND
VCLAMPL
1 µF
AVCC
0.1 µF
10 µF
220 pF
1 µF
120 kΩ
1 µF
0.1 µF
0.1 µF
220 nF
10 µF
PVCC
10 µF
220 nF
PVCC
†
†Optional output filter for EMI suppression
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004, Texas Instruments Incorporated