Texas Instruments TPS548A28 Скачать руководство пользователя страница 24

www.ti.com

5

8.

Limitations on Damages and Liability:

8.1

General Limitations

. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,

INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR
REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING,
OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF
USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI
MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS
OCCURRED.

8.2

Specific Limitations.

IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED

HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN
CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR
EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR 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. Furthermore, no return of EVM(s)

will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable
order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),
excluding any postage or packaging costs.

10.

Governing Law:

These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,

without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to
these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.
Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief
in any United States or foreign court.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2019, Texas Instruments Incorporated

Содержание TPS548A28

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы: