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TPA005D14 Folha de dados(PDF) 1 Page - Texas Instruments

Nome de Peças TPA005D14
Descrição Electrónicos  2-W STEREO CLASS-D AUDIO POWER AMPLIFIER
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

TPA005D14 Folha de dados(HTML) 1 Page - Texas Instruments

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TPA005D14
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER
SLOS240A – AUGUST 1999 – REVISED MARCH 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Choose TPA2000D2 For Upgrade
D Extremely Efficient Class-D Stereo
Operation
D Drives L and R Channels, Plus Stereo
Headphones
D 2-W BTL Output Into 4 Ω
D 5-W Peak Music Power
D Fully Specified for 5-V Operation
D Low Quiescent Current
D Shutdown Control . . . 0.2 µA
D Class-AB Headphone Amplifier
D Thermally-Enhanced PowerPAD™ Surface
Mount Packaging
D 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-
Ω 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
µA, 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
VDD
LPVDD
LOUTP
LOUTP
PGND
PGND
LOUTN
LOUTN
LPVDD
HPDL
HPLOUT
HPLIN
AGND
PVDD
VCP
CP3
CP2
COSC
AGND
AGND
RINN
RINP
RCOMP
FAULT0
FAULT1
RPVDD
ROUTP
ROUTP
PGND
PGND
ROUTN
ROUTN
RPVDD
HPDR
HPROUT
HPRIN
V2P5
PVDD
PGND
CP4
CP1
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DCA PACKAGE
(TOP VIEW)


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