Texas Instruments TPS54386EVM User Manual Download Page 21

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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.

Summary of Contents for TPS54386EVM

Page 1: ...ent Technique output ripple measurement using TP3 and TP4 or TP18 and TP19 9 Figure 4 3 Control Loop Measurement Setup 9 Figure 5 1 TPS54386EVM Efficiency verse Load Current VIN 9 6 13 2 V VOUT1 5 0 V...

Page 2: ...dified to other input or output voltages by changing some of the components 1 2 Applications Non Isolated Low Current Point of Load and Voltage Bus Converters Consumer Electronics LCD TV Computer Peri...

Page 3: ...VOUT_ripple Output voltage ripple VIN nom IOUT max 30 mVpp IOUT1 Output current 1 VIN min to max 0 2 0 A IOUT2 Output current 2 VIN min to max 0 2 0 IOCP1 Output over current Channel 1 VIN nom VOUT V...

Page 4: ...rence only see Table 7 1 List of Materials for specific values Schematic www ti com 4 TPS54x86 Step Down Converter Evaluation Module User s Guide SLUU286A MARCH 2008 REVISED OCTOBER 2021 Submit Docume...

Page 5: ...ion connects EN1 to ground and turns on first Output 1 and then Output 2 3 3 Test Point Descriptions Table 3 1 Test Point Descriptions TEST POINT LABLE USE SECTION TP1 VIN Monitor input voltage Sectio...

Page 6: ...ching waveform Connect an oscilloscope probe to TP9 to monitor the switch node voltage for Channel 1 3 3 5 TPS54386 Device Ground TP11 TPS54386EVM provides a test point for the device ground To measur...

Page 7: ...ded ground connection may induce additional noise due to the large ground loop area 4 1 5 Recommended Wire Gauge VIN to J1 The connection between the source voltage VIN and J1 of HPA241 can carry as m...

Page 8: ...nd J1 as shown in Figure 4 1 4 Connect voltmeter V1 to TP1 and TP2 as shown in Figure 4 1 5 Connect LOAD1 to J2 as shown in Figure 4 1 Set LOAD1 to constant current mode to sink 0 ADC before VIN is ap...

Page 9: ...rement using TP3 and TP4 or TP18 and TP19 FAN V1 A1 VVIN LOAD1 5 0V 2A V2 LOAD2 3 3V 2A V3 Isolation Transformer Figure 4 3 Control Loop Measurement Setup www ti com 4 Test Set Up SLUU286A MARCH 2008...

Page 10: ...Channel B to TP6 as shown in Figure 4 3 4 Connect ground lead of Channel A and Channel B to TP5 TP7 as shown in Figure 4 3 5 Inject 30 mV or less signal across R1 through isolation transformer 6 Sweep...

Page 11: ...6 1 62 90 h Efficiency EFFICIENCY V OUT 5 0 V vs LOADCURRENT 70 65 ILOAD Load Current A 90 75 65 60 85 h Efficiency EFFICIENCY V OUT 3 3 V vs LOADCURRENT 50 2 00 13 2 V 9 6 V 12 0 V 0 10 1 24 0 48 0 8...

Page 12: ...335 0 86 0 10 1 62 0 48 1 24 2 00 0 86 3 328 Figure 5 2 TPS54386EVM Output Voltage verse Load Current VIN 9 6 13 2 V VOUT1 5 0 V IOUT1 0 2 A VOUT2 3 3 V IOUT2 0 2 A 5 3 Output Voltage Ripple Figure 5...

Page 13: ...48 90 45 180 Phase 135 90 0 45 0 GAIN PHASE vs FREQUENCY V OUT 3 3V IOUT 2 A f Frequency Hz 100 1000 10 0 100 20 60 60 Gain dB 20 40 0 40 80 Phase 90 45 90 0 45 Gain Phase Figure 5 5 TPS54386EVM Gain...

Page 14: ...to allow the user to easily view probe and evaluate the TPS54386 control device in a practical double sided application Moving components to both sides of the PCB or using additional internal layers c...

Page 15: ...viewed from top www ti com EVM Assembly Drawings and Layout SLUU286A MARCH 2008 REVISED OCTOBER 2021 Submit Document Feedback TPS54x86 Step Down Converter Evaluation Module User s Guide 15 Copyright 2...

Page 16: ...ray view from top EVM Assembly Drawings and Layout www ti com 16 TPS54x86 Step Down Converter Evaluation Module User s Guide SLUU286A MARCH 2008 REVISED OCTOBER 2021 Submit Document Feedback Copyrigh...

Page 17: ...nch Coilcraft MSS1048 822L 2 R1 R10 Resistor chip 1 16 W 5 51 0603 Std Std 2 R2 R9 Resistor chip 1 16 W 1 20 k 0603 Std Std 2 R3 R8 Resistor chip 1 16 W 5 10 0603 Std Std 1 R4 Resistor chip 1 16 W 1 3...

Page 18: ...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 19: ...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 20: ...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 21: ...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 22: ...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 23: ...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 thes...

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