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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 TPS2640EVM

Page 1: ...Restart From Latch Off Mode 12 Figure 4 6 J5 J12 Floating Current Limit 2 23 A Circuit Breaker With Auto Retry Mode 12 Figure 4 7 Output Short Circuit Protection 13 Figure 4 8 Reverse Polarity Protec...

Page 2: ...g voltage range 0 2 A to 2 23 A jumper programmable current limit Reverse polarity protection up to 42 V Programmable input UVLO Selectable overload fault response auto retry latch and circuit breaker...

Page 3: ...n be monitored at TP5 and TP14 with a scaling factor of 1 5 V A Table 2 1 TPS2640EVM Options and Setting Part Number EVM Function VIN Range VIN UVLO VINOVP Current Limit Output Overvoltage Selectable...

Page 4: ...24 RTN2 1 2 J10 TP17 GND TP18 GND 1uF 100V C11 Vout1 Vout1 Vin1 Vin1 Vin2 Vin2 Vout2 Vout2 1 2 J6 1 2 J13 100k R4 100k R17 36V D4 36V D10 1 2 36V D2 1 2 36V D8 1 2 J15 1 2 J16 D3 D5 0 1uF C1 0 1uF C7...

Page 5: ...Description J1 J1 CH1 fault LED pulled to VIN1 if installed J2 J2 CH1 output power indicator LED pulled to VOUT1 if installed J3 J3 CH1 bulk output capacitor connects to VOUT1 if installed J4 MODE CH1...

Page 6: ...t and thermal shutdown D6 D9 GREEN LED Output power indicator CH1 CH2 output power indicators respectively LED turns on whenever the output voltage is available 4 2 Test Equipment 4 2 1 Power Supplies...

Page 7: ...TPS2640EVM Connect T1 T3 to the power supply and T2 T4 to the load Figure 4 1 EVM Test Setup www ti com General Configurations SLVUBX9 OCTOBER 2020 Submit Document Feedback TPS2640EVM Evaluation Modu...

Page 8: ...Enable the power supply and the load 6 Connect the negative probe of the DMM to TP7 or TP18 test points the positive probe to the respective test points and verify that the voltages shown in Table 4 6...

Page 9: ...for the Output Voltage Start Up Test Oscilloscope Setting CH1 Probe Points CH2 Probe Points Channel 1 10 V div VOUT1 TP3 VOUT2 TP12 Channel 2 10 V div VIN1 TP2 VIN2 TP11 Channel 3 20 V div FLTb1 TP1 F...

Page 10: ...ime base 100 ms div Note Measuring the current limit value on the oscilloscope can easily cause 10 error from the typical expected values as listed in Table 4 9 2 Set the current limit to 2 23 A by in...

Page 11: ...stance to 6 1 and enable the load 11 Enable the power supply and verify the current limit magnitude the latch off fault response waveform as shown in the Figure 4 4 Figure 4 4 J5 J12 1 2 Position Curr...

Page 12: ...with auto retry by uninstalling the J4 J11 jumper 17 Set the load resistance to 6 1 and enable the load 18 Enable the power supply and verify the circuit breaker with auto retry fault response wavefor...

Page 13: ...div Input current into T1 Ve wire Input current into T3 Ve wire Trigger source Channel 1 Trigger level 12 V 1 V Trigger polarity Falling Trigger mode Single Time base 2 ms div 2 Set the load resistanc...

Page 14: ...1 V Trigger polarity Falling Trigger mode Single Time base 10 ms div 2 Set the power supply voltage to 42 V and disable the power supply 3 Connect ve terminal of the power supply to either T1 T3 ve t...

Page 15: ...28 V and load of 1 A at the output 3 Now apply transient input voltage 28 V to 40 V for 20 ms and verify the Overvoltage clamp response as Figure 4 9 shows Figure 4 9 Overvoltage Clamp Response www t...

Page 16: ...nent placement and layout of the EVM Figure 5 1 Top Side Placement Figure 5 2 Top Layer Figure 5 3 Bottom Layer EVM Board Assembly Drawings and Layout Guidelines www ti com 16 TPS2640EVM Evaluation Mo...

Page 17: ...X 0 20 Clear Transparent Bumpon SJ 5303 CLEAR 3M J1 J2 J3 J6 J8 J9 J10 J13 J15 J16 10 Header 100mil 2x1 Gold TH Sullins 100mil 1x2 230 mil above insulator PBC02SAAN Sullins Connector Solutions J4 J7 J...

Page 18: ...lock 2x1 5 08mm TH 10 16x15 2x9mm 282841 2 TE Connectivity TP1 TP4 TP5 TP10 TP13 TP14 6 White Test Point TH Multipurpose White Keystone5012 5012 Keystone Equivalent Any TP2 TP3 TP11 TP12 4 Red Test Po...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 24: ...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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