TPA2015D1 Datasheet, PDF (1/33 Pages) Texas Instruments – 2 W Constant Output Power Class-D Audio Amplifier With Adaptive Boost Converter and Battery Tracking SpeakerGuard™ AGC

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPA2015D1
SLOS638B – NOVEMBER 2011 – REVISED OCTOBER 2015
TPA2015D1 2-W Constant Output Power Class-D Audio Amplifier With Adaptive Boost
Converter and Battery Tracking Speakerguard™ AGC
1 Features
•1 Built-In SpeakerGuard^TM Automatic Gain Control
(AGC) with Enhanced Battery Tracking
– Limits Battery Current Consumption
– Prevents Audio Clipping
• 2 W into 8 Ω Load From 3.6 V Supply (6% THD)
• Integrated Adaptive Boost Converter
– Increases Efficiency at Low Output Power
• Low Quiescent Current of 1.7 mA from 3.6 V
• Operates From 2.5 V to 5.2 V
• Thermal and Short-Circuit Protection with Auto
Recovery
• Three Gain Settings: 6 dB, 15.5 dB, and 20 dB
• Independent Control for Boost and Class-D
• Pin-to-Pin Compatible with TPA2013D1
• Available in 1.954 mm × 1.954 mm 16-ball
DSBGA Package
2 Applications
• Cell Phones, PDA, GPS
• Portable Electronics and Speakers
3 Description
The TPA2015D1 is a high efficiency Class-D audio
power amplifier with battery-tracking SpeakerGuard™
AGC technology and an integrated adaptive boost
converter that enhances efficiency at low output
power. It drives up to 2 W into an 8 Ω speaker (6%
THD). With 85% typical efficiency, the TPA2015D1
helps extend battery life when playing audio.
The built-in boost converter generates a 5.5 V supply
voltage for the Class-D amplifier. This provides a
louder audio output than a stand-alone amplifier
directly connected to the battery. The
SpeakerGuard^TM AGC adjusts the Class-D gain to
limit battery current and prevent heavy clipping.
The TPA2015D1 has an integrated low-pass filter to
improve the RF rejection and reduce DAC out-of-
band noise, increasing the signal to noise ratio
(SNR).
The TPA2015D1 is available in a space saving
1.954 mm × 1.954 mm, 0.5 mm pitch DSBGA
package (YZH).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA2015D1
DSBGA (16)
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Connected to Supply
Simplified Application Schematic
2.2 mH
6.8 mF - 22 mF
2.2 mF - 10 mF
Differential
Audio Inputs
Gain Control
AGC Control
Boost Enable
Class-D Enable
VBAT
IN-
SW PVOUT PVDD
IN+
GAIN
AGC
ENB
END
TPA2015D1
GND
OUT+
OUT-
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.