Texas Instruments | TPA6304-Q1 45-W,​​​ 2.1-MHz Analog Input 4-Channel Automotive Class-D Burr-Brown™ Audio Amplifier with Load Dump Protection and I2C Diagnostics (Rev. A) | Datasheet | Texas Instruments TPA6304-Q1 45-W,​​​ 2.1-MHz Analog Input 4-Channel Automotive Class-D Burr-Brown™ Audio Amplifier with Load Dump Protection and I2C Diagnostics (Rev. A) Datasheet

Texas Instruments TPA6304-Q1 45-W,​​​ 2.1-MHz Analog Input 4-Channel Automotive Class-D Burr-Brown™ Audio Amplifier with Load Dump Protection and I2C Diagnostics (Rev. A) Datasheet
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TPA6304-Q1
SLASEU4A – SEPTEMBER 2019 – REVISED NOVEMBER 2019
TPA6304-Q1 45-W, 2.1-MHz Analog Input 4-Channel Automotive Class-D Burr-Brown™
Audio Amplifier with Load Dump Protection and I2C Diagnostics
1 Features
2 Applications
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Highest efficiency
– Significantly more efficient than Class-AB
– Reduce thermal solution with 75% less heat
dissipation than Class-AB
Start/stop operation down to 4.5 V
AEC-Q100 Qualified for automotive applications:
– Temperature grade 1: –40°C to 125°C TA
– HBM ESD Classification level 2
– CDM ESD Classification level C4B
27 W, 10% THD into 4 Ω at 14.4 V
– Drives 4 Ω and 2 Ω loads
Load diagnostics
– Output open, shorted load
– Output-to-battery or ground shorts
– Tweeter connected
Designed to meet CISPR25-L5 EMC specification
– Class-D at 2.1 MHz, no AM interference
– Spread Spectrum mode
Protection
– 40 V Load dump
– Output short protection
– DC offset and over temperature
– Fortuitous open ground and power tolerant
Audio inputs
– 4 Channel single-ended analog input
– 10 dB, 16 dB or 28 dB Gain option
Supports parallel channel drive (PBTL)
Audio performance into 4 Ω at 14.4 V, 1 kHz
– THD+N < 0.1%
– 42 µVRMS Output Noise
– 75 dB PSRR
– Efficiency > 80%
Special features
– Programmable clip detection
– Load current limiter
– Thermal gain foldback
– Fast and autonomous startup diagnostics
– AC load impedance measurement with
< 10 mA load current
Automotive head units
Automotive external amplifier modules
3 Description
The TPA6304-Q1 device is a four-channel analoginput Class-D Burr-Brown™ audio amplifier that
implements a 2.1 MHz PWM switching frequency that
enables a cost optimized solution in a very small 2.7
cm2 PCB size, high impedance single ended inputs
and full operation down to 4.5 V for start/stop events.
The TPA6304-Q1 Class-D audio amplifier has an
optimal design for use in entry level automotive head
units that provide analog audio input signals as part
of their system design. The Class-D topology
dramatically improves efficiency over traditional linear
amplifier solutions.
The output switching frequency can be set either
above the AM band, which eliminates the AM band
interference and reduces output filter size and cost,
or below AM band to further optimize efficiency.
The device is offered in a 44 pin HTSSOP package
with the exposed thermal pad up.
Device Information(1)
PART NUMBER
TPA6304-Q1
PACKAGE
HTSSOP (44)
BODY SIZE (NOM)
14.00 mm × 6.10 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Reference Board
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. ADVANCE INFORMATION for pre-production products; subject to
change without notice.
ADVANCE INFORMATION
1
TPA6304-Q1
SLASEU4A – SEPTEMBER 2019 – REVISED NOVEMBER 2019
www.ti.com
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (September 2019) to Revision A
•
Page
Added Burr-Brown logo, and Burr-Brown™ Audio Amplifier to the Title and Description...................................................... 1
ADVANCE INFORMATION
2
Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
Product Folder Links: TPA6304-Q1
TPA6304-Q1
www.ti.com
SLASEU4A – SEPTEMBER 2019 – REVISED NOVEMBER 2019
5 Device and Documentation Support
5.1 Documentation Support
5.1.1 Related Documentation
For related documentation see the following:
PurePath™ Console 3 Graphical Development Suite
5.2 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
5.3 Community Resources
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
E2E Audio Amplifier Forum TI's Engineer-to-Engineer (E2E) Community for Audio Amplifiers. Created to
foster collaboration among engineers. Ask questions and receive answers in real-time.
5.4 Trademarks
Burr-Brown, PurePath, E2E are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
5.5 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
5.6 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
6 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
Product Folder Links: TPA6304-Q1
3
ADVANCE INFORMATION
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
PACKAGE OPTION ADDENDUM
www.ti.com
11-Nov-2019
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
PTPA6304QDDVRQ1
ACTIVE
HTSSOP
DDV
44
2000
TBD
Call TI
Call TI
-40 to 125
TPA6304QDDVRQ1
PREVIEW
HTSSOP
DDV
44
2000
TBD
Call TI
Call TI
-40 to 125
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
Samples
IMPORTANT NOTICE AND DISCLAIMER
TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE
DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”
AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD
PARTY INTELLECTUAL PROPERTY RIGHTS.
These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate
TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable
standards, and any other safety, security, or other requirements. These resources are subject to change without notice. TI grants you
permission to use these resources only for development of an application that uses the TI products described in the resource. Other
reproduction and display of these resources is prohibited. No license is granted to any other TI intellectual property right or to any third
party intellectual property right. TI disclaims responsibility for, and you will fully indemnify TI and its representatives against, any claims,
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TI’s products are provided subject to TI’s Terms of Sale (www.ti.com/legal/termsofsale.html) or other applicable terms available either on
ti.com or provided in conjunction with such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable
warranties or warranty disclaimers for TI products.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2019, Texas Instruments Incorporated
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