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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.

Содержание TPS23758EVM-080

Страница 1: ...s Figure 4 1 TPS23758EVM 080 Schematic 4 Figure 6 1 Startup Response When Connected to a PoE PSE TPS23880 6 Figure 6 2 DCDC Startup 6 Figure 6 3 Transient Response from 100 mA to 1 A for a 48 V Input...

Страница 2: ...IN TYP MAX UNIT POWER INTERFACE Input voltage Applied to the power pins of connectors J1 37 57 V Applied to the power pins of connectors J4 48 V Input UVLO POE input J1 Rising input voltage 36 V Falli...

Страница 3: ...from a DC source when power at J1 is not present The TPS23758 U1 PD and DC to DC converter circuitry is shown in Figure 4 1 R17 provides the detection signature The switched side of the PD controller...

Страница 4: ...ic Figure 4 1 TPS23758EVM 080 Schematic Schematic www ti com 4 TPS23758EVM 080 Evaluation Module SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2020 Texas Instruments Inc...

Страница 5: ...o visually indicate the output voltage J6 FREQ Jump to Fixed for fixed frequency Jump to Dither to enable spread spectrum dithering Table 5 2 Test Points Test Point Label Description TP1 BS Bob Smith...

Страница 6: ...e of the TPS23758EVM 080 Figure 6 1 Startup Response When Connected to a PoE PSE TPS23880 Figure 6 2 DCDC Startup TPS23758EVM 080 Performance Data www ti com 6 TPS23758EVM 080 Evaluation Module SLVUBO...

Страница 7: ...S23758EVM 080 Figure 6 3 Transient Response from 100 mA to 1 A for a 48 V Input www ti com TPS23758EVM 080 Performance Data SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback TPS23758E...

Страница 8: ...TPS23758EVM 080 Figure 6 4 Efficiency of the TPS23758EVM 080 TPS23758EVM 080 Performance Data www ti com 8 TPS23758EVM 080 Evaluation Module SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document F...

Страница 9: ...5 Recovery from VOUT Short Figure 6 6 DCDC Recovery from Output Short www ti com TPS23758EVM 080 Performance Data SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback TPS23758EVM 080 Ev...

Страница 10: ...re 6 7 SRF 0 Figure 6 8 SRF 100 TPS23758EVM 080 Performance Data www ti com 10 TPS23758EVM 080 Evaluation Module SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2020 Texas...

Страница 11: ...0 Figure 6 10 SRR 10 www ti com TPS23758EVM 080 Performance Data SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback TPS23758EVM 080 Evaluation Module 11 Copyright 2020 Texas Instrument...

Страница 12: ...ement and layout of the TPS23758EVM 080 Figure 7 1 Top Side Component Placement Figure 7 2 Layer 2 Routing EVM Assembly Drawings and Layout Guidelines www ti com 12 TPS23758EVM 080 Evaluation Module S...

Страница 13: ...re 7 4 Bottom Side Routing www ti com EVM Assembly Drawings and Layout Guidelines SLVUBO2B APRIL 2019 REVISED DECEMBER 2020 Submit Document Feedback TPS23758EVM 080 Evaluation Module 13 Copyright 2020...

Страница 14: ...en the 48 V input voltage rails and between the input and an isolated converter output Use large copper fills and traces on SMT power dissipating devices and use wide traces or overlay copper fills in...

Страница 15: ...CB creating a phantom or literal earth ground Use LC filter at DC to DC input Dampen high frequency ringing on all switching nodes if present allow for possible snubbers Control rise times with gate d...

Страница 16: ...P AL 22 uF 100 V 20 1 3 ohm AEC Q200 Grade 2 SMD SMT Radial F EEE FK2A220P Panasonic C9 C12 C21 C23 4 0 1 uF CAP CERM 0 1 uF 100 V 10 X7R 0805 0805 C2012X7R2A104 K125AA TDK C10 C11 2 2 2 uF CAP CERM 2...

Страница 17: ...1 0603 0603 CGA3E2X7R1E1 04K080AA TDK D1 D2 D10 3 100 V Diode Switching 100 V 0 2 A SOD 123 SOD 123 MMSD4148T1G ON Semiconductor D3 D4 2 12 V Diode Zener 12 V 500 mW SOD 123 SOD 123 MMSZ5242B 7 F Diod...

Страница 18: ...ohm Ferrite Bead 100 ohm 100 MHz 1 A 0603 0603 MPZ1608D101B TD25 TDK Q1 1 30 V MOSFET N CH 30 V 20 A DNH0008A VSONP 8 DNH0008A CSD17579Q3A Texas Instruments None R1 R2 R3 R6 4 75 0 RES 75 0 1 0 1 W 0...

Страница 19: ...402 CRCW0402200K FKED Vishay Dale R23 1 237 k RES 237 k 1 0 063 W AEC Q200 Grade 0 0402 0402 CRCW0402237K FKED Vishay Dale R24 1 36 5 k RES 36 5 k 1 0 063 W AEC Q200 Grade 0 0402 0402 CRCW040236K5 FKE...

Страница 20: ...12 4 Test Point Miniature Black TH Black Miniature Testpoint 5001 Keystone TP9 TP13 2 Test Point Miniature Orange TH Orange Miniature Testpoint 5003 Keystone TP11 1 Test Point Miniature White TH White...

Страница 21: ...Revision B December 2020 Page Updated the numbering format for tables figures and cross references throughout the document 2 Updated Schematic 4 Updated Bill of Materials 16 www ti com Revision Histor...

Страница 22: ...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 23: ...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 24: ...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 25: ...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 26: ...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 27: ...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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