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TPA2025D1 Arkusz danych(PDF) 1 Page - Texas Instruments

Numer części TPA2025D1
Szczegółowy opis  TPA2025D1 2-W Constant Output Power Class-D Audio Amplifier With Class-G Boost Converter and Battery Tracking AGC
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Producent  TI [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI - Texas Instruments

TPA2025D1 Arkusz danych(HTML) 1 Page - Texas Instruments

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IN+
IN-
EN
AGND
PGND
VBAT
SW
PVDD
OUT+
OUT-
TPA 2025D1
Audio
Input
Connected to Supply
Enable
+
-
AGC
AGC
BGND
2.2 F
m
2.2 H
m
6.8 F - 22 F
m
m
Product
Folder
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TPA2025D1
SLOS717B – AUGUST 2011 – REVISED DECEMBER 2014
TPA2025D1 2-W Constant Output Power Class-D Audio Amplifier With Class-G Boost
Converter and Battery Tracking AGC
1 Features
3 Description
The TPA2025D1 is a high efficiency Class-D audio
1
Built-In Enhanced Battery Tracking Automatic
power amplifier with battery tracking AGC technology
Gain Control (AGC)
and an integrated Class-G boost converter that
Limits Battery Current Consumption
enhances efficiency at low output power. It drives up
1.9 W into 8-
Ω Load from 3.6-V Supply (1%
to 1.9 W into an 8-
Ω speaker (1% THD+N). With 85%
typical efficiency, the TPA2025D1 helps extend
THD+N)
battery life when playing audio.
Integrated Adaptive Boost Converter
The built-in boost converter generates a 5.75-V
Increases Efficiency at Low Output Power
supply
voltage
for
the
Class-D
amplifier.
This
Low Quiescent Current of 2 mA From 3.6 V
provides a louder audio output than a stand-alone
Thermal and Short-Circuit Protection With Auto
amplifier directly connected to the battery. The battery
Recovery
tracking AGC adjusts the Class-D gain to limit battery
current at lower battery voltage.
20-dB Fixed Gain
Similar Performance to TPA2015D1
The TPA2025D1 has an integrated low-pass filter to
improve the RF rejection and reduce DAC out-of-
Available in 1.53-mm × 1.982-mm,
band
noise,
increasing
the
signal-to-noise
ratio
0.5-mm Pitch 12-Ball WCSP Package
(SNR).
2 Applications
The TPA2025D1 is available in a space saving
1.53 mm × 1.982 mm, 0.5 mm pitch DSBGA package
Cell Phones
(YZG).
PDA, GPS
Portable Electronics and Speakers
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA2025D1
DSBGA (12)
1.53 mm x 1.982 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Battery Tracking Auto Gain Control
4 Simplified Application Diagram
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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