background image

www.ti.com

4

4

EVM Use Restrictions and Warnings:

4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT

LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.

4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling

or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.

4.3

Safety-Related Warnings and Restrictions:

4.3.1

User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any
load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.
During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.

4.3.2

EVMs 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 assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that 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 electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.

4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,

state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.

5.

Accuracy of Information:

To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate

as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.

6.

Disclaimers:

6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT

LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL
FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT
NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE
SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.

6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE

CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR
INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE
EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR
IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.

7.

USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS.

USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS

LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,
EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY
WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL
THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.

Содержание SWIFT TPS548A20

Страница 1: ...p 8 Figure 8 1 TPS548A20EVM 587 Top Layer Assembly Drawing 13 Figure 8 2 TPS548A20EVM 587 Bottom Layer Assembly Drawing 13 Figure 8 3 TPS548A20EVM 587 Top Layer Copper 14 Figure 8 4 TPS548A20EVM 587 L...

Страница 2: ...hronous buck converter with integrated MOSFETs The device provides a fixed 1 2 V output at up to 15 A from a 12 V input bus Introduction www ti com 2 TPS548A20 SWIFT Step Down Converter Evaluation Mod...

Страница 3: ...lecommunication infrastructure 2 2 Features The TPS548A20EVM 737 features include the following 15 A DC steady state output current Support for a prebias output voltage at startup Jumper J2 for enable...

Страница 4: ...2 Load regulation VIN 12 V IO 0 A 8 A with FCCM 0 5 Output voltage ripple VIN 12 V IO 8 A with FCCM 10 mVpp Output load current 0 15 A Output over current 15 A Soft start 1 ms SYSTEMS CHARACTERISTICS...

Страница 5: ...erences in pin functions of the TPS548A20 and TPS549A20 Table 4 1 Device Pin Out Difference Summary PIN NO PIN NAMES TPS549A20 TPS548A20 26 ALERT NC 27 SDA GND1 28 SCL GND1 www ti com Schematic SLUUBC...

Страница 6: ...C12 22 F C13 22 F C14 330 F C16 22 F C1 22 F C2 22 F C3 22 F C4 330 F C24 330 F C27 DNP 1nF C17 470pF C8 3 01 R9 TP15 0 R5 0 1 F C7 TP6 TP7 TP9 300k R4 TP10 100k R15 100k R14 TP11 0 R19 1 F C25 TP14 1...

Страница 7: ...N to J1 as shown in Figure 5 2 Multimeters V1 VIN at TP1 VIN and TP4 GND V2 VOUT at TP7 VOUT and TP9 GND Output Load The output load must an electronic constant resistance mode load capable of 0 to 15...

Страница 8: ...Connect the voltmeter V1 at TP1 VIN and TP4 GND to measure the input voltage Output Connections 1 Connect the load to J3 and set the load to constant resistance mode to sink 0 ADC before VIN is appli...

Страница 9: ...tting 1 MHz For different switching frequency setting please change R3 and R4 as shown in Table 6 1 6 2 Mode Selection The MODE can be set by J5 Table 6 2 Mode Selection JUMPER SET TO MODE SELECTION 1...

Страница 10: ...isconnected to VIN pins 1 Default setting the VDD pin connected to the VIN pins through R19 For power up input J7 with proper voltage The VDD pin input voltage range is from 4 5 V to 25 V Configuratio...

Страница 11: ...7 contains a 10 series resistor in the feedback loop for loop response analysis 1 Set up the EVM as described in Section 5 and Figure 5 2 2 Connect the isolation transformer to the test points marked...

Страница 12: ...Input A for loop injection TP9 PGND Power ground TP10 RF RF pin TP11 TRIP TRIP pin TP12 EN Enable pin TP13 VDD VDD pin TP14 MODE MODE pin TP15 AGND Analog ground 7 4 Equipment Shutdown Follow these st...

Страница 13: ...8 The EVM has been designed using a six layer 2 oz copper circuit board Figure 8 1 TPS548A20EVM 587 Top Layer Assembly Drawing Figure 8 2 TPS548A20EVM 587 Bottom Layer Assembly Drawing www ti com EVM...

Страница 14: ...48A20EVM 587 Layer Two Copper EVM Assembly Drawing and PCB Layout www ti com 14 TPS548A20 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBC0A DECEMBER 2015 REVISED AUGUST 2021 Submit Doc...

Страница 15: ...48A20EVM 587 Layer Four Copper www ti com EVM Assembly Drawing and PCB Layout SLUUBC0A DECEMBER 2015 REVISED AUGUST 2021 Submit Document Feedback TPS548A20 SWIFT Step Down Converter Evaluation Module...

Страница 16: ...8A20EVM 587 Bottom Layer Copper EVM Assembly Drawing and PCB Layout www ti com 16 TPS548A20 SWIFT Step Down Converter Evaluation Module User s Guide SLUUBC0A DECEMBER 2015 REVISED AUGUST 2021 Submit D...

Страница 17: ...l transfer printable labels 0 650 W 0 2 inch H 10 000 per roll PCB Label 0 65 H 0 2 inch W THT 14 423 10 Brady R1 R2 R14 R15 4 100k Resistor 100 k 1 0 1 W 0603 0603 CRCW0603100KFKEA Vishay Dale R3 1 1...

Страница 18: ...on A August 2021 Page Updated the numbering format for tables figures and cross references throughout the document 2 Updated user s guide title 2 Revision History www ti com 18 TPS548A20 SWIFT Step Do...

Страница 19: ...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 20: ...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 21: ...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 22: ...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 23: ...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 24: ...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...

Отзывы: