TPA3245 Datasheet, PDF (1/28 Pages) Texas Instruments – 200W Mono PurePath Ultra-HD Analog-Input

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TPA3245
SLASEC7 – APRIL 2016
TPA3245 100-W Stereo, 200-W Mono PurePath™ Ultra-HD Analog-Input
1 Features
•1 Differential Analog Inputs
• Total Output Power at 10%THD+N
– 115-W Stereo into 4 Ω in BTL Configuration
– 150-W Stereo into 3 Ω in BTL Configuration
– 230-W Mono into 2 Ω in PBTL Configuration
• Total Output Power at 1%THD+N
– 95-W Stereo into 4 Ω in BTL Configuration
– 125-W Stereo into 3 Ω in BTL Configuration
– 190-W Mono into 2 Ω in PBTL Configuration
• 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)
– <55 µV (A-Weighted) Output Noise
– >111 dB (A Weighted) SNR
• Multiple Configurations Possible:
– Stereo, Mono, 2.1 and 4xSE
• Click and Pop Free Startup and Stop
• 90% Efficient Class-D Operation (4 Ω)
• Wide 12-V to 30-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
Simplified Schematic
2 Applications
• Blu-ray Disk™ / DVD Receivers
• High End TV sets
• High End Soundbar
• Mini Combo Systems
• Active Speakers and Subwoofers
3 Description
TPA3245 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.
The device can drive up to 2 x 100 W into 4-Ω load
and 2 x 133 W into 3-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, TPA3245
achieves both high power efficiency and very low
power stage idle losses below 0.8 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)
TPA3245
HTSSOP (44)
6.10 mm x 14.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Total Harmonic Distortion
RIGHT
Audio
Source
LEFT
And Control
Operation Mode Select
Switching Frequency Select
Master/Slave Synchronization
TPA3245
TAS5630
/CLIP_OTW
/RESET
/FAULT
M1:M2
FREQ_ADJ
OSC_IO
LC
Filter
LC
Filter
12V
Power Supply
30V
TO BE UPDATED
110VAC->240VAC
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. PRODUCT PREVIEW Information. Product in design phase of
development. Subject to change or discontinuance without notice.