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TPA2012D2RTJT Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPA2012D2RTJT
Descripción Electrónicos  2.1-W/Channel Stereo Filter-Free Class-D Audio Power Amplifier
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPA2012D2RTJT Datasheet(HTML) 1 Page - Texas Instruments

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Copyright © 2016, Texas Instruments Incorporated
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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.
TPA2012D2
SLOS438F – DECEMBER 2004 – REVISED MARCH 2017
TPA2012D2 2.1-W/Channel Stereo Filter-Free Class-D Audio Power Amplifier
1
1 Features
1
Output Power By Package:
WQFN:
2.1 W/Ch Into 4 Ω at 5 V
1.4 W/Ch Into 8 Ω at 5 V
720 mW/Ch Into 8 Ω at 3.6 V
DSBGA:
1.2 W/Ch Into 4 Ω at 5 V
(Thermally Limited)
1.3 W/Ch Into 8 Ω at 5 V
720 mW/Ch Into 8 Ω at 3.6 V
Only Two External Components Required
Power Supply Range: 2.5 V to 5.5 V
Independent Shutdown Control for Each Channel
Selectable Gain of 6, 12, 18, and 24 dB
Internal Pulldown Resistor on Shutdown Pins
High PSRR: 77 dB at 217 Hz
Fast Start-Up Time (3.5 ms)
Low Supply Current
Low Shutdown Current
Short-Circuit and Thermal Protection
Space-Saving Packages
2.01-mm × 2.01-mm NanoFree™ DSBGA
(YZH)
4-mm × 4-mm Thin WQFN (RTJ) With
PowerPAD™
2 Applications
Wireless or Cellular Handsets and PDAs
Portable DVD Players
Notebook PCs
Portable Radios
Portable Gaming
Educational Toys
USB Speakers
3 Description
The TPA2012D2 is a stereo, filter-free, Class-D audio
amplifier (Class-D amp) available in a DSBGA or
WQFN package. The TPA2012D2 only requires two
external components for operation.
The TPA2012D2 features independent shutdown
controls for each channel. The gain can be selected
to 6, 12, 18, or 24 dB using the G0 and G1 gain
select pins. High PSRR and differential architecture
provide
increased
immunity
to
noise
and
RF
rectification. In addition to these features, a fast start-
up
time
and
small
package
size
make
the
TPA2012D2 class-D amp an ideal choice for both
cellular handsets and PDAs.
The TPA2012D2 is capable of driving 1.4 W/Ch at
5 V or 720 mW/Ch at 3.6 V into 8 Ω. The TPA2012D2
is also capable of driving 4 Ω. The TPA2012D2 is
thermally limited in DSBGA and may not achieve
2.1 W/Ch for 4 Ω. The maximum output power in the
DSBGA is determined by the ability of the circuit
board to remove heat. Figure 33 shows thermally
limited region of the DSBGA in relation to the WQFN
package. The TPA2012D2 provides thermal and
short-circuit protection.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA2012D2
DSBGA (16)
2.01 mm × 2.01 mm
WQFN (20)
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Application Schematic


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