TPA3250 Amplifier Datasheet

TPA3250 Datasheet PDF, Equivalent


Part Number

TPA3250

Description

Ultra-HD Pad Down Class-D Amplifier

Manufacture

etcTI

Total Page 30 Pages
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TPA3250
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TPA3250
SLASE99A – DECEMBER 2015 – REVISED APRIL 2016
TPA3250 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 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 )
• 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
The TPA3250 device 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-load and 2 x 70 W continuous
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, TPA3250
achieves both high power efficiency and very low
power stage idle losses below 1 W. This is achieved
through the use of 60 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)
TPA3250
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
And Control
LEFT
Operation Mode Select
Switching Frequency Select
Master/Slave Synchronization
TPA3250
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
Po - Output Power - W
10
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.

TPA3250
TPA3250
SLASE99A – DECEMBER 2015 – REVISED APRIL 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........................ 21
10.1 Application Information.......................................... 21
10.2 Typical Applications .............................................. 21
11 Power Supply Recommendations ..................... 28
11.1 Power Supplies ..................................................... 28
11.2 Powering Up.......................................................... 28
11.3 Powering Down ..................................................... 29
11.4 Thermal Design..................................................... 30
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 Community Resources.......................................... 37
13.3 Trademarks ........................................................... 37
13.4 Electrostatic Discharge Caution ............................ 37
13.5 Glossary ................................................................ 37
14 Mechanical, Packaging, and Orderable
Information ........................................................... 37
4 Revision History
Changes from Original (December 2015) to Revision A
Page
• Changed the datasheet device number From: TPS3250D2 To TPA3250 ............................................................................ 1
2 Submit Documentation Feedback
Product Folder Links: TPA3250
Copyright © 2015–2016, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPA3250 SLASE99A – DECEMBE R 2015 – REVISED APRIL 2016 TPA3250 7 0-W Stereo, 130-W peak PurePath™ Ultr a-HD Pad Down Class-D Amplifier 1 Feat ures •1 Differential Analog Inputs Total Output Power at 10%THD+N – 70 -W Stereo Continuous into 8 Ω in BTL C onfiguration at 32 V – 130-W Stereo P eak into 4 Ω in BTL Configuration at 3 2 V • Total Output Power at 1%THD+N 60-W Stereo Continuous into 8 Ω in BTL Configuration at 32 V – 105-W Ste reo Peak into 4 Ω in BTL Configuration at 32 V • Advanced Integrated Feedba ck Design with Highspeed Gate Driver Er ror Correction (PurePath™ Ultra-HD) Signal Bandwidth up to 100 kHz for H igh Frequency Content From HD Sources Ultra Low 0.005% THD+N at 1 W into 4 Ω and <0.01% THD+N to Clipping – 6 0 dB PSRR (BTL, No Input Signal) – <6 0 µV (A-Weighted) Output Noise – >11 0 dB (A Weighted) SNR • Multiple Configurations Possible: – Stereo, Mono, 2.1 and 4xSE • Click and Pop F.
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