TPA3250D2 Datasheet, PDF (1/41 Pages) Texas Instruments – 70-W Stereo, 130-W peak PurePath Ultra-HD Pad Down Class-D Amplifier

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TPA3250D2
SLASE99 – DECEMBER 2015
TPA3250D2 70-W Stereo, 130-W peak PurePath™ Ultra-HD Pad Down Class-D Amplifier
1 Features
•1 Differential Analog Inputs
• Total Output Power at 10%THD+N
– 70-W Stereo Continuous into 8 Ω in BTL
Configuration at 32 V
– 130-W Stereo Peak into 4 Ω in BTL
Configuration at 32 V
• Total Output Power at 1%THD+N
– 60-W Stereo Continuous into 8 Ω in BTL
Configuration at 32 V
– 105-W Stereo Peak into 4 Ω in BTL
Configuration at 32 V
• Advanced Integrated Feedback Design with High-
speed Gate Driver Error Correction
(PurePath™ Ultra-HD)
– Signal Bandwidth up to 100 kHz for High
Frequency Content From HD Sources
– Ultra Low 0.005% THD+N at 1 W into 4 Ω and
<0.01% THD+N to Clipping
– 60 dB PSRR (BTL, No Input Signal)
– <60 µV (A-Weighted) Output Noise
– >110 dB (A Weighted) SNR
• Multiple Configurations Possible:
– Stereo, Mono, 2.1 and 4xSE
• Click and Pop Free Startup and Stop
• 92% Efficient Class-D Operation (8 Ω)
• Wide 12-V to 36-V Supply Voltage Operation
• Self-Protection Design (Including Undervoltage,
Overtemperature, Clipping, and Short Circuit
Protection) With Error Reporting
• EMI Compliant When Used With Recommended
System Design
2 Applications
• High End Soundbar
• Mini Combo Systems
• Blu-ray Disk™ / DVD Receivers
• Active Speakers
3 Description
TPA3250D2 is a high performance class-D power
amplifier that enables true premium sound quality
with class-D efficiency. It features an advanced
integrated feedback design and proprietary high-
speed gate driver error correction (PurePath™ Ultra-
HD). This technology allows ultra low distortion
across the audio band and superior audio quality.
With a 32V power supply the device can drive up to 2
x 130 W peak into 4-Ω load and 2 x 70 W continuous
into 8-Ω load and features a 2 VRMS analog input
interface that works seamlessly with high
performance DACs such as TI's PCM5242. In
addition to excellent audio performance, TPA3250D2
achieves both high power efficiency and very low
power stage idle losses below 1 W. This is achieved
through the use of 60 mΩ MOSFETs and an
optimized gate driver scheme that achieves
significantly lower idle losses than typical discrete
implementations.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA3250D2
HTSSOP (44)
6.10mm x 14.00mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
Total Harmonic Distortion
RIGHT
Audio
Source
LEFT
And Control
Operation Mode Select
Switching Frequency Select
Master/Slave Synchronization
TPA3250D2
TAS5630
/CLIP_OTW
/RESET
/FAULT
M1:M2
FREQ_ADJ
OSC_IO
LC
Filter
LC
Filter
12V
Power Supply
36V
110VAC->240VAC
10
8:
1
0.1
0.01
T _A = 25qC
0.001
10m
100m
1
10
Po - Output Power - W
100
D000
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.