TPA3100D2 Datasheet, PDF (1/31 Pages) Texas Instruments – 20-W STEREO CLASS-D AUDIO POWER AMPLIFIER

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QFN
TQFP
TPA3100D2
SLOS469B – OCTOBER 2005 – REVISED OCTOBER 2005
20-W STEREO CLASS-D AUDIO POWER AMPLIFIER
FEATURES
• 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
• 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
Package
• Surface Mount 7 mm × 7 mm, 48-pin TQFP
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, 26, 32, 36
dB.
The outputs are fully protected against shorts to
GND, V_CC, and output-to-output shorts with an auto
recovery feature and monitor output.
Differential
Analog
Inputs
4-Step
Gain Control
Synchronize Multiple
Class-D Devices
Shutdown
and Mute
Fault ^Control
33 mH
Output
0.1 mF
0.47 mF
8W
33 mH
0.1 mF
10 V - 26 V
220nF
220nF
10 mF
1 mF
1 mF
1 mF
1 mF
1 mF
NC
RINN
RINP
AGND
LINP
LINN
NC
GAIN0
GAIN1
MSTR/SLV
SYNC
NC
TPA3100D2
(QFN Version)
NC ^{10 V - 26 V}
PVCCR
PVCCR
1 mF
220 mF
PGNDR
PGNDR
VCLAMPR
VCLAMPL
PGNDL
1 mF
1 mF
PGNDL
PVCCL
220 mF
PVCCL
NC
10 V - 26 V
1 mF
100 kW
10 nF
220nF
220nF
1 mF
33 mH
0.1 mF
0.47 mF
8W
33 mH
0.1 mF
Differential
Analog
Inputs
4-Step
Gain Control
Synchronize Multiple
Class-D Devices
Shutdown
and Mute
Fault ^Control
Output
33 mH
0.1 mF
0.47 mF
8W
0.1 mF
10 V - 26 V
220nF
33 mH
220nF
10 mF
1 mF
1 mF
1 mF
1 mF
1 mF
GND
RINN
RINP
AGND
LINP
LINN
GAIN0
GAIN0
GAIN1
MSTR/SLV
SYNC
GND
TPA3100D2
(TQFP Version)
GND
PVCCR
PVCCR
PGNDR
PGNDR
VCLAMPR
VCLAMPL
PGNDL
PGNDL
PVCCL
PVCCL
GND
10 V - 26 V
1 mF
220 mF
1 mF
1 mF
220 mF
10 V - 26 V
1 mF
100 kW
10 nF
220nF
220nF
1 mF
33 mH
0.1 mF
0.47 mF
8W
33 mH
0.1 mF
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.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information 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 © 2005, Texas Instruments Incorporated