TPA2080D1_16 Datasheet, PDF (1/29 Pages) Texas Instruments – Constant Output Power Class-D Audio Amplifier

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TPA2080D1
SLOS733B – JANUARY 2012 – REVISED APRIL 2016
TPA2080D1 2.2-W Constant Output Power Class-D Audio Amplifier With Class-G Boost
Converter
1 Features
•1 2.2 W into 4-Ω Load from 3.6-V Supply
(1% THD+N)
• Integrated Class-G Boost Converter
– Increases Efficiency at Low Output Power
• Low Quiescent Current of 3.5 mA from 3.6 V
• Thermal and Short-Circuit Protection With Auto
Recovery
• 20-dB Fixed Gain
• Available in 1.53-mm × 1.98-mm, 0.5-mm pitch
12-ball WCSP (DSBGA) Package
2 Applications
• Cell Phones
• PDA, GPS
• Portable Electronics and Speakers
3 Description
The TPA2080D1 device is a high-efficiency Class-D
audio power amplifier with an integrated Class-G
boost converter that enhances efficiency at low output
power. It drives up to 2.2 W into an 4-Ω speaker (1%
THD+N). With 85% typical efficiency, the TPA2080D1
helps extend battery life when playing audio.
The built-in boost converter generates a 5.75-V
supply voltage for the Class-D amplifier when high
output power is required. This provides a louder
audio output than a stand-alone amplifier directly
connected to the battery. During low audio output
power periods, the boost converter deactivates and
connects VBAT directly to the Class-D amplifier
supply, PVDD. This improves overall efficiency.
The TPA2080D1 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 TPA2080D1 is available in a space-saving
1.53-mm × 1.982-mm, 0.5-mm pitch WCSP package
(YZG).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA2080D1
DSBGA (12)
1.53 mm × 1.98 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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.