Texas Instruments TPS548A28 Скачать руководство пользователя страница 19 | Manualshive

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Texas Instruments TPS548A28 Скачать руководство пользователя страница 19

Revision History

19

SLVUBO0A – March 2020 – Revised May 2020

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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 (March 2020) to A Revision

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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...

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