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TPA3144D2PWPR データシート(PDF) 1 Page - Texas Instruments

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部品番号 TPA3144D2PWPR
部品情報  6-W Inductor Free Stereo (BTL) Class-D Audio Amplifier
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

TPA3144D2PWPR データシート(HTML) 1 Page - Texas Instruments

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Power Supply
110VAC->240VAC
TAS5630
4.5V-14.4V
TPA3144D2
Audio
Source
And Control
RIGHT
LEFT
Ferrite
Bead
Filter
Ferrite
Bead
Filter
PBTL
DETECT
SD
FAULT
1SPW
GAIN
SSCTRL
LIMRATE
1SPW Modulation Scheme Select
4 Level Gain Select
Spread Spectrum Mode Select
AGL Speed Select / Voltage Limiter
LIMTHRES
AGL / Limiter Threshold
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPA3144D2
SLOS907B – APRIL 2015 – REVISED JULY 2015
TPA3144D2 6-W Inductor Free Stereo (BTL) Class-D Audio Amplifier with Ultra Low EMI
and AGL
1 Features
3 Description
The TPA3144D2 is an efficient, Class-D audio power
1
2x6 W/ch into 4-
Ω Loads at 10% THD+N from a
amplifier for driving bridged-tied stereo speakers at
7-V Supply
up to 6 W 6
Ω or 8 Ω (per channel).
2x6 W/ch into 6-
Ω Loads at 10% THD+N from a
Advanced EMI Suppression Technology with Spread
9.5-V Supply
Spectrum Control and 1SPW modulation scheme
2x6 W/ch into 8-
Ω Loads at 10% THD+N from a
enables the use of inexpensive ferrite bead filters at
10-V Supply
the outputs while meeting EMC requirements for
Up to 90% Efficient Class-D Operation (8
Ω)
system cost reduction. TPA3144D2 is not only fully
Eliminates Need for Heat Sinks
protected
against
shorts
and
overload,
the
SpeakerGuard™ speaker protection circuitry includes
<0.05% THD+N at 1 W/4
Ω/1 kHz
an
adjustable
Automatic
Gain
Limit
(AGL),
an
<65-µV A-wgt Output Noise
adjustable power limiter and a DC detection circuit for
Wide Supply Voltage Range Allows Operation
protection of the connected speakers. The AGL
SpeakerGuard™ speaker protection circuitry
allows adjustment of the maximum output voltage
without
signal
clipping
for
enhanced
speaker
includes from 4.5 V to 14.4 V
protection and audio quality. The DC detect and Pin-
Inductor-Free Operation
to-Pin, Pin-to-Ground and Pin-to-Power Short Circuit
Enhanced EMI Performance with Spread
protection circuit protect the speakers from output DC
Spectrum and 1SPW Operation
and pin shorts caused in production. The outputs are
SpeakerGuard™ Speaker Protection Includes
also fully protected against shorts to GND, PVCC,
and output-to-output. The short-circuit protection and
Automatic Gain Limit, Adjustable Power Limiter
thermal protection includes an auto recovery feature.
and DC Protection
Robust Pin-to-Pin, Pin-to-Ground and Pin-to-
The TPA3144D2 can drive stereo speakers with as
low as 4-
Ω impedance. The high efficiency of the
Power Short Circuit Protection and Thermal
TPA3144D2, 90% with 8-
Ω load, eliminates the need
Protection
for an external heat sink, and TPA3144D2 will be
Four Selectable, Fixed Gain Settings
able to output full power on a 2-layer PCB.
Single Ended or Differential Analog Inputs
Click and Pop Free Startup
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
2 Applications
TPA3144D2
HTSSOP (28)
9.70 mm x 4.40 mm
Televisions
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
BT Speakers
Wireless Speakers
Simplified Schematic
Mini Speakers
USB Speakers
Consumer Audio Equipment
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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