Texas Instruments TPS548A28 User Manual Download Page 20

STANDARD TERMS FOR EVALUATION MODULES

1.

Delivery:

TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or

documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.

1.1

EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms that accompany such Software

1.2

EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.

2

Limited Warranty and Related Remedies/Disclaimers

:

2.1

These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License
Agreement.

2.2

TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by
neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have
been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications
or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control
techniques

are

used

to

the

extent

TI

deems

necessary.

TI

does

not

test

all

parameters

of

each

EVM.

User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.

2.3

TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit
User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty
period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or
replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be
warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.

WARNING

Evaluation Kits are intended solely for use by technically qualified,

professional electronics experts who are familiar with the dangers

and application risks associated with handling electrical mechanical

components, systems, and subsystems.

User shall operate the Evaluation Kit within TI’s recommended

guidelines and any applicable legal or environmental requirements

as well as reasonable and customary safeguards. Failure to set up

and/or operate the Evaluation Kit within TI’s recommended

guidelines may result in personal injury or death or property

damage. Proper set up entails following TI’s instructions for

electrical ratings of interface circuits such as input, output and

electrical loads.

NOTE:

EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.

Summary of Contents for TPS548A28

Page 1: ...Efficiency 6 2 4 Load Regulation 8 2 5 Load Transients 9 2 6 Loop Characteristics 10 2 7 Output Voltage Ripple 11 2 8 Powering Up 12 3 Schematic List of Materials and Layout 13 3 1 Schematic 14 3 2 Li...

Page 2: ...ry Rated input voltage and output current ranges for the evaluation module are given in Table 1 1 1 Background The EVM is setup to allow the user to evaluate the performance of the TPS54JA20 IC and ea...

Page 3: ...16 V 0 12 12 A Internal LDO Voltage 3 0 V Line regulation VIN 4 V to 16 V IO 12 A 0 07 Load regulation VIN 12 V IO 0 A to 12 A 0 12 Load transient response IO 3 A to 9 A 2 A us Voltage change 50 mV Re...

Page 4: ...p Mode 121k 10 to AGND Short Pins 5 and 6 1000 kHz Forced CCM 60 4k 10 to AGND Short Pins 7 and 8 800 kHz Forced CCM 30 1k 10 to AGND Short Pins 9 and 10 600 kHz Forced CCM Short to AGND Short Pins 11...

Page 5: ...VOUT as the ground reference Table 5 TPS54JA20EVM EVM Connectors and Test Points REFERENCE DESIGNATOR FUNCTION J1 VIN input voltage connector see Table 1 for VIN range J2 PGND connection for input J3...

Page 6: ...S54JA20EVM 023 12 A Buck Converter Evaluation Module 2 3 Efficiency The efficiency of this EVM peaks at a load current of about 6 A and then decreases as the load current increases toward full load Th...

Page 7: ...80 90 100 Vout 2 5 V 800 kHz 800 nH VCC Int Skip D022 Vin 8 V Vin 12 V Vin 16 V www ti com Test Setup and Results 7 SLVUBO0A March 2020 Revised May 2020 Submit Documentation Feedback Copyright 2020 Te...

Page 8: ...2 511 2 514 2 517 800 kHz 800 nH FCCM VCC Int D024 Vin 8 V Vin 12 V Vin 16 V Test Setup and Results www ti com 8 SLVUBO0A March 2020 Revised May 2020 Submit Documentation Feedback Copyright 2020 Texa...

Page 9: ...Buck Converter Evaluation Module 2 5 Load Transients Figure 8 and Figure 9 show how the TPS54JA20EVM response to load transients The current step is from 25 to 75 Load The current step slew rate is 2...

Page 10: ...t 12 A D018 Gain Phase Test Setup and Results www ti com 10 SLVUBO0A March 2020 Revised May 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated Using the TPS54JA20EVM 023...

Page 11: ...23 12 A Buck Converter Evaluation Module 2 7 Output Voltage Ripple Figure 11 Figure 12 and Figure 13 show the TPS54JA20EVM output voltage ripple VIN 12 V The ripple voltage is measured directly across...

Page 12: ...rt up waveforms for the TPS54JA20EVM In Figure 14 the start up sequence begins as soon as the EN voltage is increased above the enable threshold voltage and the output voltage ramps up to the external...

Page 13: ...0 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated Using the TPS54JA20EVM 023 12 A Buck Converter Evaluation Module 3 Schematic List of Materials and Layout This section pro...

Page 14: ...UBO0A March 2020 Revised May 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated Using the TPS54JA20EVM 023 12 A Buck Converter Evaluation Module 3 1 Schematic The followi...

Page 15: ...C80J476KE 18L MuRata C19 1 CAP CERM 0 22 uF 16 V 10 X7R 0603 C1608X7R1C224K08 0AC TDK C20 1 CAP CERM 0 022 uF 16 V 10 X7R 0603 C0603C223K4RACTU Kemet L1 1 Inductor Shielded Composite 800 nH 25 8 A 0 0...

Page 16: ...lane The internal layer 2 contains an additional large ground copper area as well as an additional VOUT copper fill The bottom layer is another ground plane with two additional traces for the output v...

Page 17: ...O0A March 2020 Revised May 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated Using the TPS54JA20EVM 023 12 A Buck Converter Evaluation Module Figure 16 TPS54JA20EVM Top...

Page 18: ...A March 2020 Revised May 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated Using the TPS54JA20EVM 023 12 A Buck Converter Evaluation Module Figure 18 TPS54JA20EVM Intern...

Page 19: ...dback Copyright 2020 Texas Instruments Incorporated Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Original...

Page 20: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 21: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 22: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 23: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 24: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 25: ...e 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 reprod...

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