參數(shù)資料
型號： TPA005D14DCAR
廠商： Texas Instruments, Inc.
元件分類： 音頻放大器
英文描述： Amplifier. Other
中文描述： 放大器。其他
文件頁數(shù)： 1/29頁
文件大?。?/td> 420K
代理商： TPA005D14DCAR
TPA005D14
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER
SLOS240A – AUGUST 1999 – REVISED MARCH 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Choose TPA2000D2 For Upgrade
Extremely Efficient Class-D Stereo
Operation
Drives L and R Channels, Plus Stereo
Headphones
2-W BTL Output Into 4
5-W Peak Music Power
Fully Specified for 5-V Operation
Low Quiescent Current
Shutdown Control . . . 0.2
μ
A
Class-AB Headphone Amplifier
Thermally-Enhanced PowerPAD
Surface
Mount Packaging
Thermal, Over-Current, and Under-Voltage
Protection
description
The TPA005D14 is a monolithic power IC stereo
audio amplifier that operates in extremely efficient
Class-D operation, using the high switching speed
of power DMOS transistors to replicate the analog
input signal through high-frequency switching of
the output stage. This allows the TPA005D14 to
be configured as a bridge-tied load (BTL) amplifier
capable of delivering up to 2 W of continuous
average power into a 4-
load at 0.4% THD+N from a 5-V power supply in the high-fidelity audio frequency
range (20 Hz to 20 kHz). A BTL configuration eliminates the need for external coupling capacitors on the output.
Included is a Class-AB headphone amplifier with interface logic to select between the two modes of operation.
Only one amplifier is active at any given time, and the other is in power-saving sleep mode. Also, a chip-level
shutdown control is provided to limit total quiescent current to 0.2
μ
A, making the device ideal for
battery-powered applications.
A full range of protection circuitry is included to increase device reliability: thermal, over-current, and
under-voltage shutdown, with two status feedback terminals for use when any error condition is encountered.
The high switching frequency of the TPA005D14 allows the output filter to consist of three small capacitors and
two small inductors per channel. The high switching frequency also allows for good THD+N performance.
The TPA005D14 is offered in the thermally enhanced 48-pin PowerPAD TSSOP surface-mount package
(designator DCA).
Copyright
2000, Texas Instruments Incorporated
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.
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 Incorporated.
SHUTDOWN
MUTE
MODE
LINN
LINP
LCOMP
AGND
V
DD
LPV
DD
LOUTP
LOUTP
PGND
PGND
LOUTN
LOUTN
LPV
DD
HPDL
HPLOUT
HPLIN
AGND
PV
DD
VCP
CP3
CP2
COSC
AGND
AGND
RINN
RINP
RCOMP
FAULT0
FAULT1
RPV
DD
ROUTP
ROUTP
PGND
PGND
ROUTN
ROUTN
RPV
DD
HPDR
HPROUT
HPRIN
V2P5
PV
DD
PGND
CP4
CP1
1
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DCA PACKAGE
(TOP VIEW)
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