Ultra-HD Analog-Input. TPA3255 Datasheet

TPA3255 Datasheet PDF, Equivalent


Part Number

TPA3255

Description

Ultra-HD Analog-Input

Manufacture

etcTI

Total Page 30 Pages
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TPA3255 Datasheet
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TPA3255
SLASEA8A – FEBRUARY 2016 – REVISED OCTOBER 2016
TPA3255 315-W Stereo, 600-W Mono PurePath™ Ultra-HD Analog-Input
1 Features
1 Differential Analog Inputs
• Total Output Power at 10%THD+N
– 315-W Stereo into 4 Ω in BTL Configuration
– 185-W Stereo into 8 Ω in BTL Configuration
– 600-W Mono into 2 Ω in PBTL Configuration
• Total Output Power at 1%THD+N
– 260-W Stereo into 4 Ω in BTL Configuration
– 150-W Stereo into 8 Ω in BTL Configuration
– 480-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 0.006% THD+N at 1 W into 4 and
<0.01% THD+N to Clipping
– >65 dB PSRR (BTL, 1 kHz, No Input Signal)
– <85 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 )
• Wide 18-V to 53.5V 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
• Blu-Ray Disc™ / DVD Receivers
• High End HTiB Systems
• AV Receivers
• High End Soundbar
• Mini Combo Systems
• Active Speakers and Subwoofers
3 Description
TPA3255 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 is operated in AD-mode, and can drive up
to 2 x 315 W into 4-load at 10% THD and 2 x 150
W unclipped into 8-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, TPA3255
achieves both high power efficiency and very low
power stage idle losses below 2.5W. This is achieved
through the use of 85 mMOSFETs 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)
TPA3255
HTSSOP (44)
6.10 mm x 14.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
Total Harmonic Distortion
RIGHT
Audio
Source
And Control
LEFT
Operation Mode Select
Switching Frequency Select
Master/Slave Synchronization
TPA3255D2
TAS5630
/CLIP_OTW
/RESET
/FAULT
M1:M2
FREQ_ADJ
OSC_IO
LC
Filter
LC
Filter
12V
Power Supply
51V
10
4:
8:
1
0.1
0.01
110VAC->240VAC
Copyright © 2016, Texas Instruments Incorporated
TA = 75qC
0.001
10m
100m
1 10
Po - Output Power - W
100 400
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.

TPA3255 Datasheet
TPA3255
SLASEA8A – FEBRUARY 2016 – REVISED OCTOBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 6
7.4 Thermal Information .................................................. 6
7.5 Electrical Characteristics........................................... 7
7.6 Audio Characteristics (BTL) ...................................... 8
7.7 Audio Characteristics (SE) ....................................... 9
7.8 Audio Characteristics (PBTL) ................................... 9
7.9 Typical Characteristics, BTL Configuration............. 10
7.10 Typical Characteristics, SE Configuration............. 12
7.11 Typical Characteristics, PBTL Configuration ........ 13
8 Parameter Measurement Information ................ 14
9 Detailed Description ............................................ 14
9.1 Overview ................................................................. 14
9.2 Functional Block Diagrams ..................................... 15
9.3 Feature Description................................................. 17
9.4 Device Functional Modes........................................ 17
10 Application and Implementation........................ 22
10.1 Application Information.......................................... 22
10.2 Typical Applications .............................................. 22
11 Power Supply Recommendations ..................... 29
11.1 Power Supplies ..................................................... 29
11.2 Powering Up.......................................................... 30
11.3 Powering Down ..................................................... 31
11.4 Thermal Design..................................................... 31
12 Layout................................................................... 33
12.1 Layout Guidelines ................................................. 33
12.2 Layout Examples................................................... 34
13 Device and Documentation Support ................. 37
13.1 Documentation Support ........................................ 37
13.2 Receiving Notification of Documentation Updates 37
13.3 Community Resources.......................................... 37
13.4 Trademarks ........................................................... 37
13.5 Electrostatic Discharge Caution ............................ 37
13.6 Glossary ................................................................ 37
14 Mechanical, Packaging, and Orderable
Information ........................................................... 37
4 Revision History
Changes from Original (February 2016) to Revision A
Page
• Changed the device status From: PRODUCT PREVIEW To: Production Data..................................................................... 1
2 Submit Documentation Feedback
Product Folder Links: TPA3255
Copyright © 2016, Texas Instruments Incorporated


Features Datasheet pdf Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TPA3255 SLASEA8A – FEBRUARY 2 016 – REVISED OCTOBER 2016 TPA3255 31 5-W Stereo, 600-W Mono PurePath™ Ultr a-HD Analog-Input 1 Features •1 Diff erential Analog Inputs • Total Output Power at 10%THD+N – 315-W Stereo int o 4 Ω in BTL Configuration – 185-W S tereo into 8 Ω in BTL Configuration 600-W Mono into 2 Ω in PBTL Configur ation • Total Output Power at 1%THD+N – 260-W Stereo into 4 Ω in BTL Conf iguration – 150-W Stereo into 8 Ω in BTL Configuration – 480-W Mono into 2 Ω in PBTL Configuration • Advanced Integrated Feedback Design with Highsp eed Gate Driver Error Correction (PureP ath™ Ultra-HD) – Signal Bandwidth u p to 100 kHz for High Frequency Content From HD Sources – Ultra Low 0.006% T HD+N at 1 W into 4 Ω and <0.01% THD+N to Clipping – >65 dB PSRR (BTL, 1 kH z, No Input Signal) – <85 µV (A-Weig hted) Output Noise – >111 dB (A Weighted) SNR • Multiple Configurations Possible: – Stereo, Mono, 2.1 and 4x.
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